کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1603935 | 1515996 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrafine (Ti, M)(C, N)-based cermets with optimal mechanical properties
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
A tough and strong cermet with the composition (Ti,20M,0.2V)(C,N)-16M-20Ni/Co (M = W,Mo) was prepared by mixing WC and Mo2C with ultrafine (Ti,M)(C,N) powders, and then, processed via a conventional P/M technique. It has an ultrafine and distinct core/rim structure, resulting in excellent mechanical properties: bending strength of 2210 MPa, HV hardness of 14.7 GPa and toughness of 10.1 MPa m1/2. The small concentration gradient in core/rim composition and the disappearance of inner rims benefit the reduction of the stress concentration at the core/rim interface in (Ti,M)(C,N)-MxC cermets, and thus improve their toughness. In addition, ultrafine microstrucure improves mainly their bending strength and hardness.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 29, Issue 1, January 2011, Pages 104–107
Journal: International Journal of Refractory Metals and Hard Materials - Volume 29, Issue 1, January 2011, Pages 104–107
نویسندگان
Ying Liu, Yongzhong Jin, Haijun Yu, Jinwen Ye,