Effect of Sintering Time on the Mechanical Properties of WC-8Co Cemented Carbide for Friction Stir Welding Tool

被引：0
|
作者：
Liang, Bingliang [1 ,2 ]
Zhang, Chen [2 ]
Ai, Yunlong [2 ]
Liu, Changhong [1 ,2 ]
He, Wen [2 ]
Chen, Weihua [2 ]
Wen, Jinzhi [2 ]
机构：
[1] Nanchang Hangkong Univ, Natl Def Key Disciplines Lab Light Alloy Proc Sci, 696 South Fenghenan Ave, Nanchang 330063, Jiangxi, Peoples R China
[2] Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China
来源：
MATERIALS, MECHANICAL AND MANUFACTURING ENGINEERING | 2014年 / 842卷
基金：
中国国家自然科学基金;
关键词：
WC-8Co; Cemented Carbide; Mechanical Properties; Vacuum Sintering; Friction Stir Welding Tools;
D O I：
10.4028/www.scientific.net/AMR.842.220
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
WC-8Co cemented carbide specimens were prepared via vacuum sintering. The influences of sintering time on phase composition, microstructure and mechanical properties of WC-8Co cemented carbide were investigated. The results show that dense specimens were obtained in the sintering time range of 15min similar to 60min and the relative density reached over 95%. Only WC and Co3W3C (gamma-phase) were detected by XRD without any else phases, even though Co. With the ascended sintering time, the transverse rupture strength (TRS) increased and hardness ascended to peak value and then descended. WC-Co cemented carbide with excellent mechanical properties (BRA>90, TRS similar to 630MPa and K-IC>7MPa.m(1/2)) were obtained. It would be a good candidate for applications of friction stir welding tool.
引用
收藏
页码：220 / +
页数：2
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