کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1580695 1514840 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and mechanical properties of TiC-WC-(Ti,W)C-Ni cermets
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Microstructure and mechanical properties of TiC-WC-(Ti,W)C-Ni cermets
چکیده انگلیسی
(Ti0.93W0.07)C solid-solution powder is synthesized via high-energy milling and carbothermal reduction. When the solid-solution carbide is sintered after blending with Ni and commercial single-phase carbides such as TiC and WC, a complex microstructure is developed, typically featuring a core-rim structure along with the initial solid-solution phase. Furthermore, an increase in total volume of the solid-solution phase with (Ti0.93W0.07)C in the cermets results in significantly enhanced mechanical properties: fracture toughness (K1C) is 7.5-12.7 MPa m1/2 and hardness (Hv) is 11.9-14.1 GPa. These properties are in contrast with those of conventional cermets, which yield K1C = 6 MPa m1/2 and Hv = 12.6 GPa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 520, Issues 1–2, 15 September 2009, Pages 75-79
نویسندگان
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