{"id":2783,"date":"2026-03-09T03:56:15","date_gmt":"2026-03-09T02:56:15","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=2783"},"modified":"2026-03-09T03:56:15","modified_gmt":"2026-03-09T02:56:15","slug":"how-to-choose-nickel-alloy","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ar\/how-to-choose-nickel-alloy\/","title":{"rendered":"\u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0646\u064a\u0643\u0644 \u0644\u0644\u0628\u064a\u0626\u0627\u062a \u0627\u0644\u0642\u0627\u0633\u064a\u0629"},"content":{"rendered":"

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\u062f\u0631\u062c\u0629 \u0627\u0644\u0633\u0628\u064a\u0643\u0629<\/strong><\/td>\n\u0646\u064a (%)<\/strong><\/td>\n\u0643\u0631 (%)<\/strong><\/td>\n\u0645\u0648 (%)<\/strong><\/td>\n\u0627\u0644\u062d\u062f\u064a\u062f (%)<\/strong><\/td>\n\u062a\u0642\u062f\u064a\u0631 PREN<\/strong><\/td>\n\u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0642\u0635\u0648\u0649 \u0644\u0644\u062e\u062f\u0645\u0629<\/strong><\/td>\n<\/tr>\n<\/thead>\n
\u0633\u0628\u064a\u0643\u0629 400<\/b><\/span><\/td>\n63.0 \u062f\u0642\u064a\u0642\u0629<\/span><\/td>\n–<\/span><\/td>\n–<\/span><\/td>\n2.5 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/span><\/td>\n\u063a\u064a\u0631 \u0645\u062a\u0627\u062d<\/span><\/td>\n1000 \u062f\u0631\u062c\u0629 \u0641\u0647\u0631\u0646\u0647\u0627\u064a\u062a (538 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629)<\/span><\/td>\n<\/tr>\n
\u0633\u0628\u064a\u0643\u0629 625<\/b><\/span><\/td>\n58.0 \u062f\u0642\u064a\u0642\u0629<\/span><\/td>\n20.0 – 23.0<\/span><\/td>\n8.0 – 10.0<\/span><\/td>\n5.0 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/span><\/td>\n45 – 50<\/span><\/td>\n1800 \u062f\u0631\u062c\u0629 \u0641\u0647\u0631\u0646\u0647\u0627\u064a\u062a (982 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629)<\/span><\/td>\n<\/tr>\n
\u0633\u0628\u064a\u0643\u0629 718<\/b><\/span><\/td>\n50.0 – 55.0<\/span><\/td>\n17.0 – 21.0<\/span><\/td>\n2.8 – 3.3<\/span><\/td>\n\u0627\u0644\u0631\u0635\u064a\u062f<\/span><\/td>\n26 – 31<\/span><\/td>\n1300 \u062f\u0631\u062c\u0629 \u0641\u0647\u0631\u0646\u0647\u0627\u064a\u062a (704 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629)*<\/span><\/td>\n<\/tr>\n
\u0633\u0628\u064a\u0643\u0629 C-276<\/b><\/span><\/td>\n\u0627\u0644\u0631\u0635\u064a\u062f<\/span><\/td>\n14.5 – 16.5<\/span><\/td>\n15.0 – 17.0<\/span><\/td>\n4.0 – 7.0<\/span><\/td>\n> 64<\/span><\/td>\n1900 \u062f\u0631\u062c\u0629 \u0641\u0647\u0631\u0646\u0647\u0627\u064a\u062a (1038 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u062f\u0648\u0631 \u0627\u0644\u0646\u064a\u0643\u0644 \u0641\u064a \u0627\u0644\u062a\u062e\u0641\u064a\u0641 \u0645\u0646 \u0627\u0644\u062a\u0634\u0642\u0642 \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0627\u0644\u062a\u0622\u0643\u0644 \u0627\u0644\u0625\u062c\u0647\u0627\u062f\u064a<\/h2>\n

\u0625\u062d\u062f\u0649 \u0622\u0644\u064a\u0627\u062a \u0627\u0644\u0641\u0634\u0644 \u0627\u0644\u0623\u0643\u062b\u0631 \u062e\u0628\u062b\u064b\u0627 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0647\u064a \u0627\u0644\u062a\u0634\u0642\u0642 \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0643\u0644\u0648\u0631\u064a\u062f (CSCC). \u0648\u0645\u0646 \u0627\u0644\u0645\u0639\u0631\u0648\u0641 \u0623\u0646 \u0627\u0644\u0641\u0648\u0644\u0627\u0630 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623 \u0627\u0644\u0642\u064a\u0627\u0633\u064a \u0645\u0646 \u0627\u0644\u0633\u0644\u0633\u0644\u0629 300 \u0639\u0631\u0636\u0629 \u0644\u0647\u0630\u0647 \u0627\u0644\u0638\u0627\u0647\u0631\u0629 \u0639\u0646\u062f \u062f\u0631\u062c\u0627\u062a \u062d\u0631\u0627\u0631\u0629 \u0623\u0639\u0644\u0649 \u0645\u0646 60 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0641\u064a \u0627\u0644\u0628\u064a\u0626\u0627\u062a \u0627\u0644\u062d\u0627\u0645\u0644\u0629 \u0644\u0644\u0643\u0644\u0648\u0631\u064a\u062f. \u0639\u0646\u062f \u062a\u062d\u062f\u064a\u062f \u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0628\u062f\u0627\u0626\u0644 \u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0646\u064a\u0643\u0644 \u0644\u0645\u0643\u0627\u0641\u062d\u0629 \u0627\u0644\u062a\u0634\u0642\u0642 \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0627\u0644\u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0627\u0644\u0643\u0644\u0648\u0631\u064a\u062f CSCC\u060c \u0641\u0625\u0646 \u0627\u0644\u0645\u0642\u064a\u0627\u0633 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0647\u0648 \u0627\u0644\u0646\u0633\u0628\u0629 \u0627\u0644\u0645\u0626\u0648\u064a\u0629 \u0627\u0644\u0625\u062c\u0645\u0627\u0644\u064a\u0629 \u0644\u0648\u0632\u0646 \u0627\u0644\u0646\u064a\u0643\u0644.<\/p>\n

\u062a\u0648\u0641\u0631 \u0627\u0644\u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u062a\u064a \u064a\u062a\u062c\u0627\u0648\u0632 \u0645\u062d\u062a\u0648\u0627\u0647\u0627 \u0645\u0646 \u0627\u0644\u0646\u064a\u0643\u0644 42%\u060c \u0645\u062b\u0644 \u0627\u0644\u0633\u0628\u0627\u0626\u0643 825\u060c \u0645\u0646\u0627\u0639\u0629 \u0634\u0628\u0647 \u0643\u0627\u0645\u0644\u0629 \u0636\u062f \u0627\u0644\u062a\u0634\u0642\u0642 \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0627\u0644\u0643\u0644\u0648\u0631\u064a\u062f. \u0648\u0644\u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u064a\u0642\u064a\u0646 \u0627\u0644\u0645\u0637\u0644\u0642 \u0641\u064a \u0623\u0643\u062b\u0631 \u0627\u0644\u0645\u062d\u0627\u0644\u064a\u0644 \u0627\u0644\u0645\u0644\u062d\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0643\u0644\u0648\u0631\u064a\u062f \u0639\u062f\u0648\u0627\u0646\u064a\u0629 \u0641\u064a \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629\u060c \u0641\u0625\u0646 \u0627\u0644\u062a\u0631\u0642\u064a\u0629 \u0625\u0644\u0649 \u062f\u0631\u062c\u0629 \u0639\u0627\u0644\u064a\u0629 \u0645\u0646 \u0627\u0644\u0646\u064a\u0643\u0644 \u0645\u062b\u0644 \u0627\u0644\u0633\u0628\u0627\u0626\u0643 600 \u0623\u0648 \u0627\u0644\u0633\u0628\u0627\u0626\u0643 625 (\u0643\u0644\u0627\u0647\u0645\u0627 \u064a\u062a\u062c\u0627\u0648\u0632 58% \u0646\u064a\u0643\u0644) \u0647\u064a \u0627\u0644\u0645\u0645\u0627\u0631\u0633\u0629 \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629. \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u0641\u0625\u0646 \u0645\u062c\u0631\u062f \u062a\u0639\u0638\u064a\u0645 \u0627\u0644\u0646\u064a\u0643\u0644 \u0644\u064a\u0633 \u0647\u0648 \u0627\u0644\u062d\u0644 \u062f\u0627\u0626\u0645\u064b\u0627. \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0627\u0644\u0628\u064a\u0626\u0629 \u062a\u062d\u062a\u0648\u064a \u0623\u064a\u0636\u064b\u0627 \u0639\u0644\u0649 \u0645\u0631\u0643\u0628\u0627\u062a \u0627\u0644\u0643\u0628\u0631\u064a\u062a\u060c \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0639\u0627\u0646\u064a \u0627\u0644\u0633\u0628\u0627\u0626\u0643 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0646\u064a\u0643\u0644 \u0627\u0644\u062a\u064a \u0644\u0627 \u062a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0643\u0645\u064a\u0629 \u0643\u0627\u0641\u064a\u0629 \u0645\u0646 \u0627\u0644\u0643\u0631\u0648\u0645 \u0645\u0646 \u0627\u0644\u0643\u0628\u0631\u064a\u062a\u0627\u062a \u0627\u0644\u0634\u062f\u064a\u062f\u0629. \u0648\u0644\u0630\u0644\u0643\u060c \u0639\u0646\u062f\u0645\u0627 \u062a\u0642\u0648\u0645 \u0628\u062a\u0642\u064a\u064a\u0645 \u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0646\u064a\u0643\u0644 \u0644\u0644\u0628\u064a\u0626\u0627\u062a \u0627\u0644\u0628\u062a\u0631\u0648\u0643\u064a\u0645\u0627\u0648\u064a\u0629 \u0627\u0644\u0645\u062e\u062a\u0644\u0637\u0629 \u0628\u0627\u0644\u063a\u0627\u0632\u060c \u064a\u062c\u0628 \u0627\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u062a\u0648\u0627\u0632\u0646 \u062f\u0642\u064a\u0642 \u0628\u064a\u0646 \u0627\u0644\u0646\u064a\u0643\u0644 \u0648\u0627\u0644\u0643\u0631\u0648\u0645 \u0648\u0627\u0644\u0633\u064a\u0644\u064a\u0643\u0648\u0646.<\/p>\n

\u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a \u0648\u0645\u0639\u0627\u064a\u064a\u0631 \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629<\/h2>\n

\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u062a\u0622\u0643\u0644 \u0644\u064a\u0633\u062a \u0633\u0648\u0649 \u0646\u0635\u0641 \u0627\u0644\u0645\u0639\u0631\u0643\u0629. \u0625\u0630\u0627 \u0643\u0627\u0646 \u062a\u0637\u0628\u064a\u0642\u0643 \u064a\u0646\u0637\u0648\u064a \u0639\u0644\u0649 \u062f\u0631\u062c\u0627\u062a \u062d\u0631\u0627\u0631\u0629 \u0645\u0631\u062a\u0641\u0639\u0629\u060c \u0641\u0625\u0646 \u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0646\u064a\u0643\u0644 \u062a\u0639\u062a\u0645\u062f \u0628\u0634\u0643\u0644 \u0643\u0628\u064a\u0631 \u0639\u0644\u0649 \u0627\u0644\u062b\u0628\u0627\u062a \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a \u0648\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0632\u062d\u0641. \u064a\u062c\u0628 \u0639\u0644\u064a\u0643 \u0627\u0644\u062a\u0641\u0631\u064a\u0642 \u0628\u064a\u0646 \u0627\u0644\u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0645\u0642\u0648\u0627\u0629 \u0628\u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0635\u0644\u0628 \u0648\u0627\u0644\u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u062a\u0635\u0644\u0628 \u0628\u0627\u0644\u062a\u0631\u0633\u064a\u0628 (\u0627\u0644\u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u062a\u0635\u0644\u0628 \u0645\u0639 \u062a\u0642\u062f\u0645 \u0627\u0644\u0639\u0645\u0631).<\/p>\n

\u062a\u0639\u062a\u0645\u062f \u0627\u0644\u0633\u0628\u0627\u0626\u0643 \u0630\u0627\u062a \u0627\u0644\u0645\u062d\u0644\u0648\u0644 \u0627\u0644\u0635\u0644\u0628\u060c \u0645\u062b\u0644 \u0627\u0644\u0633\u0628\u064a\u0643\u0629 625\u060c \u0639\u0644\u0649 \u062a\u0623\u062b\u064a\u0631 \u062a\u0635\u0644\u0628 \u0627\u0644\u0645\u0648\u0644\u064a\u0628\u062f\u064a\u0646\u0648\u0645 \u0648\u0627\u0644\u0646\u064a\u0648\u0628\u064a\u0648\u0645 \u062f\u0627\u062e\u0644 \u0645\u0635\u0641\u0648\u0641\u0629 \u0627\u0644\u0646\u064a\u0643\u0644 \u0648\u0627\u0644\u0643\u0631\u0648\u0645. \u0648\u062a\u062d\u062a\u0641\u0638 \u0647\u0630\u0647 \u0627\u0644\u0633\u0628\u0627\u0626\u0643 \u0628\u0642\u0648\u0629 \u0634\u062f \u0648\u0635\u0644\u0627\u0628\u0629 \u0639\u0627\u0644\u064a\u0629 \u0645\u0646 \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0645\u0628\u0631\u062f\u0629 \u062d\u062a\u0649 1800 \u062f\u0631\u062c\u0629 \u0641\u0647\u0631\u0646\u0647\u0627\u064a\u062a (982 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629) \u062a\u0642\u0631\u064a\u0628\u064b\u0627. \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u062a\u0637\u0644\u0628 \u0642\u0648\u0629 \u0627\u0644\u062e\u0636\u0648\u0639 \u0627\u0644\u0642\u0635\u0648\u0649 \u0641\u064a \u0638\u0644 \u0627\u0644\u062a\u062d\u0645\u064a\u0644 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0641\u064a \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629 - \u0645\u062b\u0644 \u0634\u0641\u0631\u0627\u062a \u0627\u0644\u062a\u0648\u0631\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u063a\u0627\u0632\u064a\u0629 \u0623\u0648 \u0642\u0648\u0627\u0644\u0628 \u0627\u0644\u0628\u062b\u0642 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0636\u063a\u0637 - \u0641\u0623\u0646\u062a \u0628\u062d\u0627\u062c\u0629 \u0625\u0644\u0649 \u0628\u0646\u064a\u0629 \u0645\u062c\u0647\u0631\u064a\u0629 \u0642\u0627\u0628\u0644\u0629 \u0644\u0644\u062a\u0635\u0644\u0628 \u0645\u0639 \u062a\u0642\u062f\u0645 \u0627\u0644\u0639\u0645\u0631.<\/p>\n

\u062a\u0633\u062a\u062e\u062f\u0645 \u0633\u0628\u064a\u0643\u0629 718 \u0625\u0636\u0627\u0641\u0627\u062a \u0645\u0646 \u0627\u0644\u062a\u064a\u062a\u0627\u0646\u064a\u0648\u0645 \u0648\u0627\u0644\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645\u060c \u0625\u0644\u0649 \u062c\u0627\u0646\u0628 \u0627\u0644\u0646\u064a\u0648\u0628\u064a\u0648\u0645\u060c \u0644\u062a\u0634\u0643\u064a\u0644 \u0631\u0648\u0627\u0633\u0628 \u0645\u062c\u0647\u0631\u064a\u0629 (\u0645\u0631\u0627\u062d\u0644 \u062c\u0627\u0645\u0627 \u0627\u0644\u0623\u0648\u0644\u064a\u0629 \u0648\u062c\u0627\u0645\u0627 \u0627\u0644\u0623\u0648\u0644\u064a\u0629 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629) \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629. \u062a\u0642\u0641\u0644 \u0647\u0630\u0647 \u0627\u0644\u0631\u0648\u0627\u0633\u0628 \u0627\u0644\u0634\u0628\u0643\u0629 \u0627\u0644\u0628\u0644\u0648\u0631\u064a\u0629\u060c \u0645\u0645\u0627 \u064a\u0645\u0646\u0639 \u062d\u0631\u0643\u0629 \u0627\u0644\u062e\u0644\u0639. \u0639\u0646\u062f \u0645\u0639\u0631\u0641\u0629 \u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0646\u064a\u0643\u0644 \u0644\u0647\u0630\u0647 \u0627\u0644\u0633\u064a\u0646\u0627\u0631\u064a\u0648\u0647\u0627\u062a \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0625\u062c\u0647\u0627\u062f\u060c \u064a\u062c\u0628 \u0639\u0644\u0649 \u0627\u0644\u0645\u0631\u0621 \u0623\u0646 \u064a\u0642\u064a\u0651\u0645 \u0628\u062f\u0642\u0629 \u0645\u062e\u0637\u0637\u0627\u062a \u0627\u0644\u062a\u062d\u0648\u0644 \u0627\u0644\u0632\u0645\u0646\u064a-\u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 (TTT) \u0644\u062a\u062c\u0646\u0628 \u062a\u0631\u0633\u064a\u0628 \u0627\u0644\u0645\u0631\u0627\u062d\u0644 \u0627\u0644\u0647\u0634\u0629.<\/p>\n

\u0627\u0644\u062a\u062f\u0648\u064a\u0631 \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0648\u0627\u0644\u062a\u0642\u0635\u0641 \u0627\u0644\u0637\u0648\u0631\u064a<\/h2>\n

Evaluating how to choose nickel alloy materials also requires a deep understanding of thermal fatigue. Constant heating and cooling cycles induce internal stresses due to thermal expansion. Nickel alloys generally have lower coefficients of thermal expansion than standard austenitic stainless steels, making them superior for cyclical high-heat applications. However, extended exposure to intermediate temperatures (1200\u00b0F – 1600\u00b0F) can cause metallurgical instability. If you want to know how to choose nickel alloy that resists this specific degradation, you must analyze long-term aging data rather than just room-temperature tensile tests.<\/p>\n

\"\u0643\u064a\u0641\u064a\u0629<\/p>\n

\u0647\u0646\u062f\u0633\u0629 \u062d\u0644 \u062f\u0627\u0626\u0645<\/h2>\n

\u0641\u064a \u0627\u0644\u0646\u0647\u0627\u064a\u0629\u060c \u064a\u0639\u062f \u062a\u062d\u062f\u064a\u062f \u0645\u0627\u062f\u0629 \u0644\u0644\u062e\u062f\u0645\u0629 \u0627\u0644\u0642\u0627\u0633\u064a\u0629 \u0644\u063a\u0632\u064b\u0627 \u0645\u0639\u062f\u0646\u064a\u064b\u0627 \u0645\u0639\u0642\u062f\u064b\u0627. \u0648\u062a\u062a\u0637\u0644\u0628 \u0645\u0639\u0631\u0641\u0629 \u0643\u064a\u0641\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0628\u064a\u0643\u0629 \u0627\u0644\u0646\u064a\u0643\u0644 \u0628\u0627\u0644\u0636\u0628\u0637 \u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u062a\u0648\u0627\u0632\u0646 \u0628\u064a\u0646 \u0627\u0644\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a \u0648\u0627\u0644\u062d\u062f\u0648\u062f \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0648\u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u0628\u0646\u064a\u0648\u064a \u0627\u0644\u062f\u0642\u064a\u0642 \u0639\u0644\u0649 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u0637\u0648\u064a\u0644. \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0624\u062f\u064a \u0627\u0644\u0627\u062e\u062a\u0644\u0627\u0641 \u0627\u0644\u0637\u0641\u064a\u0641 \u0641\u064a \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0623\u0648 \u0625\u062f\u062e\u0627\u0644 \u0634\u0648\u0627\u0626\u0628 \u0636\u0626\u064a\u0644\u0629 \u0641\u064a \u0633\u0627\u0626\u0644 \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0625\u0644\u0649 \u062a\u063a\u064a\u064a\u0631 \u0634\u0643\u0644 \u0627\u0644\u0633\u0628\u064a\u0643\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u062a\u0645\u0627\u0645\u064b\u0627. \u0644\u0627 \u062a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u0623\u0648\u0631\u0627\u0642 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0639\u0645\u0645\u0629 \u0623\u0648 \u0627\u0644\u062a\u062e\u0645\u064a\u0646. \u0641\u064a \u0634\u0631\u0643\u0629 28Nickel\u060c \u064a\u0648\u0641\u0631 \u0641\u0631\u064a\u0642 \u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u0645\u0648\u0627\u062f \u0644\u062f\u064a\u0646\u0627 \u062a\u062d\u0644\u064a\u0644\u064b\u0627 \u0645\u064a\u062a\u0627\u0644\u0648\u0631\u062c\u064a\u064b\u0627 \u0645\u062a\u0639\u0645\u0642\u064b\u0627 \u0645\u0635\u0645\u0645\u064b\u0627 \u062e\u0635\u064a\u0635\u064b\u0627 \u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0643. \u062a\u0648\u0627\u0635\u0644 \u0645\u0639 \u0627\u0644\u0642\u0633\u0645 \u0627\u0644\u0641\u0646\u064a \u0644\u062f\u064a\u0646\u0627 \u0644\u0645\u0646\u0627\u0642\u0634\u0629 \u0628\u064a\u0627\u0646\u0627\u062a\u0643 \u0627\u0644\u0628\u064a\u0626\u064a\u0629 \u0627\u0644\u062f\u0642\u064a\u0642\u0629\u060c \u0648\u0633\u0646\u0633\u0627\u0639\u062f\u0643 \u0639\u0644\u0649 \u062a\u0635\u0645\u064a\u0645 \u062d\u0644 \u0645\u0648\u062b\u0648\u0642 \u0648\u0645\u062e\u062a\u0628\u0631 \u0628\u062f\u0642\u0629.<\/p>\n

\u0623\u0633\u0626\u0644\u0629 \u0648\u0623\u062c\u0648\u0628\u0629 \u0630\u0627\u062a \u0635\u0644\u0629:<\/h3>\n

\u06331: \u0644\u0645\u0627\u0630\u0627 \u062a\u0639\u062a\u0628\u0631 \u0642\u064a\u0645\u0629 PREN \u0645\u0647\u0645\u0629 \u0639\u0646\u062f \u0627\u062a\u062e\u0627\u0630 \u0642\u0631\u0627\u0631 \u0628\u0634\u0623\u0646 \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0646\u064a\u0643\u0644 \u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0645\u064a\u0627\u0647 \u0627\u0644\u0628\u062d\u0631\u061f<\/b><\/p>\n

A1: The Pitting Resistance Equivalent Number (PREN) calculates an alloy’s resistance to localized pitting based on its Chromium, Molybdenum, and Nitrogen content. In chloride-rich seawater, alloys must typically possess a PREN > 40 (like Alloy 625) to prevent rapid intergranular attack and crevice corrosion under marine biofilms.<\/p>\n

\u06332: \u0643\u064a\u0641 \u064a\u0624\u062b\u0631 \u0627\u0644\u062a\u0642\u0635\u0641 \u0641\u064a \u0637\u0648\u0631 \u0633\u064a\u062c\u0645\u0627 \u0639\u0644\u0649 \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0646\u064a\u0643\u0644 \u0641\u064a \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629\u061f<\/b><\/p>\n

A2: \u0637\u0648\u0631 \u0633\u064a\u062c\u0645\u0627 \u0647\u0648 \u0645\u0631\u0643\u0628 \u0628\u064a\u0646 \u0645\u0639\u062f\u0646\u064a \u0635\u0644\u0628 \u0648\u0647\u0634 \u064a\u062a\u0634\u0643\u0644 \u0641\u064a \u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0645\u0648\u0644\u064a\u0628\u062f\u064a\u0646\u0648\u0645\/\u0627\u0644\u0645\u0648\u0644\u064a\u0628\u062f\u064a\u0646\u0648\u0645 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0643\u0631\u0648\u0645 \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u062a\u0639\u0631\u0636 \u0627\u0644\u0637\u0648\u064a\u0644 \u0644\u062f\u0631\u062c\u0627\u062a \u062d\u0631\u0627\u0631\u0629 \u062a\u062a\u0631\u0627\u0648\u062d \u0628\u064a\u0646 1200 \u062f\u0631\u062c\u0629 \u0641\u0647\u0631\u0646\u0647\u0627\u064a\u062a \u06481600 \u062f\u0631\u062c\u0629 \u0641\u0647\u0631\u0646\u0647\u0627\u064a\u062a. \u0625\u0630\u0627 \u0643\u0627\u0646 \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u062e\u0627\u0635 \u0628\u0643 \u064a\u0639\u0645\u0644 \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0646\u0637\u0627\u0642\u060c \u0641\u0625\u0646 \u0627\u062e\u062a\u064a\u0627\u0631 \u0633\u0628\u064a\u0643\u0629 \u0630\u0627\u062a \u0636\u0648\u0627\u0628\u0637 \u062a\u0631\u0643\u064a\u0628\u064a\u0629 \u0623\u0643\u062b\u0631 \u0625\u062d\u0643\u0627\u0645\u064b\u0627 \u0623\u0648 \u0645\u062d\u0633\u0651\u0646\u0629 \u062e\u0635\u064a\u0635\u064b\u0627 \u0644\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0623\u0645\u0631 \u0625\u0644\u0632\u0627\u0645\u064a \u0644\u0645\u0646\u0639 \u062d\u062f\u0648\u062b \u0641\u0642\u062f\u0627\u0646 \u0643\u0627\u0631\u062b\u064a \u0644\u0644\u064a\u0648\u0646\u0629 \u0627\u0644\u0635\u062f\u0645.<\/p>\n

\u06333: \u0647\u0644 \u064a\u0645\u0643\u0646\u0646\u064a \u0627\u0633\u062a\u0628\u062f\u0627\u0644 \u0627\u0644\u0633\u0628\u0627\u0626\u0643 C-276 \u0628\u0627\u0644\u0633\u0628\u0627\u0626\u0643 400 \u0641\u064a \u0627\u0644\u0628\u064a\u0626\u0627\u062a \u0627\u0644\u062d\u0645\u0636\u064a\u0629 \u0627\u0644\u0645\u062e\u062a\u0632\u0644\u0629\u061f<\/b><\/p>\n

\u062c3: \u0641\u064a \u062d\u064a\u0646 \u0623\u0646 \u0627\u0644\u0633\u0628\u064a\u0643\u0629 C-276 \u0647\u064a \u0633\u0628\u064a\u0643\u0629 \u0627\u0633\u062a\u062b\u0646\u0627\u0626\u064a\u0629 \u0641\u064a \u062c\u0645\u064a\u0639 \u0627\u0644\u0638\u0631\u0648\u0641\u060c \u0641\u0625\u0646 \u0627\u0644\u0633\u0628\u064a\u0643\u0629 400 (\u0645\u0635\u0641\u0648\u0641\u0629 Ni-Cu) \u062a\u062a\u0641\u0648\u0642 \u0645\u0646 \u0627\u0644\u0646\u0627\u062d\u064a\u0629 \u0627\u0644\u062f\u064a\u0646\u0627\u0645\u064a\u0643\u064a\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0641\u064a \u0627\u0644\u0623\u062d\u0645\u0627\u0636 \u0627\u0644\u0645\u062e\u062a\u0632\u0644\u0629 \u0645\u0646\u0632\u0648\u0639\u0629 \u0627\u0644\u0623\u0645\u0644\u0627\u062d \u0645\u062b\u0644 \u062d\u0645\u0636 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0641\u0644\u0648\u0631\u064a\u0643 \u0627\u0644\u0646\u0642\u064a. \u0642\u062f \u0644\u0627 \u062a\u0624\u062f\u064a \u0627\u0644\u0645\u0628\u0627\u0644\u063a\u0629 \u0641\u064a \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0644\u0633\u0628\u0627\u0626\u0643 Ni-Cr-Mo \u0645\u062b\u0644 C-276 \u0641\u064a \u0638\u0631\u0648\u0641 \u0627\u0644\u0627\u062e\u062a\u0632\u0627\u0644 \u0627\u0644\u0635\u0627\u0631\u0645\u0629 \u062f\u0648\u0646 \u0645\u0624\u0643\u0633\u062f\u0627\u062a \u0625\u0644\u0649 \u0623\u062f\u0627\u0621 \u0623\u0641\u0636\u0644 \u0648\u062a\u0645\u062b\u0644 \u0645\u0628\u0627\u0644\u063a\u0629 \u0645\u0639\u062f\u0646\u064a\u0629 \u063a\u064a\u0631 \u0636\u0631\u0648\u0631\u064a\u0629.<\/p>","protected":false},"excerpt":{"rendered":"

Material failure in aggressive chemical processing or high-heat environments is rarely a sudden event; it is usually a symptom of severe metallurgical misalignment. Engineers frequently ask how to choose nickel alloy grades that will actually survive specific combinations of acids, chlorides, and thermal cycling. Making the wrong specification leads to localized pitting, catastrophic stress corrosion […]<\/p>\n","protected":false},"author":1,"featured_media":2785,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2783","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/posts\/2783","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/comments?post=2783"}],"version-history":[{"count":1,"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/posts\/2783\/revisions"}],"predecessor-version":[{"id":2786,"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/posts\/2783\/revisions\/2786"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/media\/2785"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/media?parent=2783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/categories?post=2783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ar\/wp-json\/wp\/v2\/tags?post=2783"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}