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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Analysis of element-content effects on equilibrium segregation at γ/γ′ interface in Ni-base superalloys using the cluster variation method
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
نویسندگان
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