کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7989644 | 1515945 | 2018 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ferritic chromium steel as binder metal for WC cemented carbides
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Fe-based alloys as alternative binders of cemented carbides are of increased research interest. We used ferritic chromium steel AISI430L as metallic component in cobalt and nickel free WC-FeCr cemented carbides. Composites with relatively high binder content of 30â¯wt% were under investigation. Our focus was on the effect of sintering temperature on the densification and phase evolution and on the influence of extra carbon. With the liquid phase formation around 1150â¯Â°C, the near full density of the composites was achieved at 1200â¯Â°C. During sintering, M6C η-phase and (Cr, Fe)xCy mixed carbides of different composition dependent on the carbon additions were formed. Addition of carbon to achieve over-stoichiometric carbon level proved opportunity to retard the formation of the η-phase and the (Cr, Fe)23C6 phase and favored microstructural homogeneity. However, final microstructure remained heterogeneous with binder rich areas consisting of Cr- and Fe-based carbides and α-Fe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 73, June 2018, Pages 183-191
Journal: International Journal of Refractory Metals and Hard Materials - Volume 73, June 2018, Pages 183-191
نویسندگان
Marek Tarraste, Jakob Kübarsepp, Kristjan Juhani, Arvo Mere, Märt Kolnes, Mart Viljus, Birgit Maaten,