کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7989625 | 1515943 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamic hardness of cemented tungsten carbides
ترجمه فارسی عنوان
سختی دینامیکی کاربید تنگستن سیمان
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
Cemented tungsten carbides are composed of a hard tungsten carbide (WC) phase held together by a soft, ductile binder phase, typically cobalt (Co). This study examines the role of the binder composition and content on the Knoop hardness at quasi-static and dynamic strain rates. Seven different tungsten carbide materials were tested: four WC-Co systems containing 10%, 15%, 20% and 25% cobalt, two with a chromiumânickel alloy binder phase, and one “binderless” tungsten carbide. Quasi-static Knoop hardness testing was performed at strain rates of 10â3â¯sâ1 and at indentation loads between 300 and 30,000â¯g using a Wilson Tukon 2100 unit. Dynamic Knoop hardness testing was conducted at strain rates of 103â¯sâ1 using a Dynamic Indentation Hardness Tester over a range of indentation loads. All of the materials exhibited a rate-dependent Knoop hardness, with the hardness increasing by up to 60% with increasing strain rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 75, September 2018, Pages 294-298
Journal: International Journal of Refractory Metals and Hard Materials - Volume 75, September 2018, Pages 294-298
نویسندگان
Luke A. Hanner, John J. III, Jeffrey J. Swab,