کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1609352 | 1516260 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Regular γ/γⲠphase interface instability in a binary model nickel-based single-crystal alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, long-term thermal treatment of a binary Ni-Al model nickel-based superalloy was performed at 1000 °C for 50 h, 100 h and 200 h. The evolution of the γ/γⲠinterface was studied. As the treatment time increased, the γⲠprecipitates coarsened and grew. Regular interface instability was observed that the shape of the γ/γⲠinterface changed from flat to wavy. This interfacial instability was caused by the dynamic balance of strain energy and surface energy at the interface between the two phases. In addition, secondary γⲠprecipitates were observed after long-term treatment and some of the larger ones took on pillow-like shapes. The pillow-shaped distortion was because that the growth rate of the cube vertices was faster than that of other locations due to the different strain states at different locations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 633, 5 June 2015, Pages 366-369
Journal: Journal of Alloys and Compounds - Volume 633, 5 June 2015, Pages 366-369
نویسندگان
X. Li, X.N. Zhang, C.P. Liu, C.Y. Wang, T. Yu, Z. Zhang,