کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1571030 | 1514392 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Compositions and morphologies of TiAlSi intermetallics in different diffusion couples
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Two kinds of diffusion couples were designed to investigate the formation of ternary TiAlSi phases in Al-Si-Ti alloys. It was found that different diffusion processes result in various compositions and morphologies of TiAlSi intermetallics. The melted Al, Si and Ti atoms in the diffusion couple leads to the formation of flake-like TiAlSi phase through liquid-liquid reaction. Besides, unidirectional diffusion of Al and Si atoms into blocky TiAl3 particles or Ti powders via a liquid-solid diffusion process also results in the formation of TiAlSi, while keeping the block-like morphology. This kind of diffusion is a gradual process, driven by the concentration gradient. The reactions in the diffusion couples are helpful to understand the compositional and morphological evolutions of TiAlSi as reported in previous work.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 95, September 2014, Pages 285-290
Journal: Materials Characterization - Volume 95, September 2014, Pages 285-290
نویسندگان
Tong Gao, Guiliang Liu, Xiangfa Liu,