کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7969644 | 1514367 | 2016 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and microstructure characterization of Ni-Cr-Co-Ti-V-Al high entropy alloy coating on Ti-6Al-4V substrate by laser surface alloying
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ni-Cr-Co-Ti-V-Al high-entropy alloy coating on Ti-6Al-4V was synthesized by laser surface alloying. The coating is composed of a B2 matrix and (Co, Ni)Ti2 compounds with few β-Ti phases. Focused ion beam technique was utilized to prepare TEM sample and TEM observations agree well with XRD and SEM results. The formation of HEA phases is due to high temperature and rapid cooling rate during laser surface alloying. The thermodynamic parameters, ÎHmix, ÎSmixand δ as well as ÎÏ, should be used to predict the formation of the BCC solid solution, but they are not the strict criteria. Especially when ÎÏ reaches a high value (â¥Â 10%), BCC HEA will be partially decomposed, leading to the formation of (Co, Ni)Ti2 compound phases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 120, October 2016, Pages 229-233
Journal: Materials Characterization - Volume 120, October 2016, Pages 229-233
نویسندگان
Zhaobing Cai, Guo Jin, Xiufang Cui, Zhe Liu, Wei Zheng, Yang Li, Liquan Wang,