کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7971071 | 1514403 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strengthening of Ï phase in a Fe20Cr9Ni cast austenite stainless steel
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The strengthening mechanism of Ï phase in a Fe20Cr9Ni cast austenite stainless steel used for primary coolant pipes of nuclear power plants has been investigated. The yield and ultimate tensile strengths of aged specimens increased comparing with those of the unaged ones. It was found that the increase of strengths is due to the hard and brittle (Ï + γ2) structure which decomposed from α phase in the steel. Fracture surfaces of specimens after in situ tensile test showed that the inhibition of (Ï + γ2) structure on the dislocation movements was more significant than ferrite although cracks started predominately at Ï/γ2 interfaces. The (Ï + γ2) structure behaves like a fiber reinforced composite material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 84, October 2013, Pages 120-125
Journal: Materials Characterization - Volume 84, October 2013, Pages 120-125
نویسندگان
Y.Q. Wang, J. Han, B. Yang, X.T. Wang,