کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1601855 | 1005219 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analysis of element-content effects on equilibrium segregation at γ/γ′ interface in Ni-base superalloys using the cluster variation method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Effects of alloying element-content on equilibrium segregation at and adjacent to the (100) γ/γ′ interface in Ni-base superalloys were analyzed by using the cluster variation method incorporated with tetrahedron approximation and the phenomenological Lennard–Jones potential. Results suggest that Al-site occupiers in the γ′ phase such as Mo, Re and W were enriched near the interface on the side of the γ phase. On the other hand, Co, which prefers to substitute for Ni site, exhibited minimal segregation in the γ phase. The enrichment of the refractory elements such as Mo, Re and W around the interface was moderated, because Co addition slightly diluted refractory elements throughout the γ phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 16, Issue 6, June 2008, Pages 779–784
Journal: Intermetallics - Volume 16, Issue 6, June 2008, Pages 779–784
نویسندگان
T. Kitashima, T. Yokokawa, A.C. Yeh, H. Harada,