کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7989593 | 1515943 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure characterization of cemented carbide fabricated by selective laser melting process
ترجمه فارسی عنوان
خصوصیات میکرو سازه کاربید سیمان ساخته شده توسط فرایند ذوب لیزری انتخابی
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کلمات کلیدی
ذوب لیزری انتخابی، کاربید سیمان خصوصیات میکرو سازمانی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
This article presents detailed microstructure characterization of cemented carbide fabricated by selective laser melting process. Nickel-coated tungsten carbide powders were used for this study; the selective laser melting process induced complex microstructure consisting of partially-melted carbide, carbide precipitates and dendritic microstructure. Four phases were identified, i.e. MC, M2C, FCC and η in the as-built specimen. CALPHAD phase diagram was utilized to describe possible phase formation sequence during selective laser melting process, which involved melting, solidification and repeated heating. Although the composition of initial powder was very simple (spherical W2C-WC and Ni-coating), selective laser melting allowed the decomposition of initial carbides, subsequent formation of dendritic structure and precipitation of additional carbides. To the best of authors' knowledge, for the first time, detailed microstructure characterization of cemented carbide fabricated by selective laser melting is presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 75, September 2018, Pages 225-233
Journal: International Journal of Refractory Metals and Hard Materials - Volume 75, September 2018, Pages 225-233
نویسندگان
Chen-Wei Li, Kai-Chun Chang, An-Chou Yeh, Jien-Wei Yeh, Su-Jien Lin,