Effect of different quenching agent on the thermal fatigue crack propagation behavior of WC-8Co cemented carbide

被引：0

作者：

Chen, Zhen-Hua ^{[1
]}

Shi, Yuan-Yuan ^{[1
]}

Jiang, Yong ^{[1
]}

机构：

[1] College of Materials Science and Engineering, Hunan Univ., Changsha, Hunan 410082, China

来源：

Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2011年 / 38卷 / 03期

关键词：

Carbide tools - Cobalt compounds - Carbides - Quenching - Fatigue crack propagation - Fatigue testing - Solutions;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The thermal fatigue crack propagation behavior of WC-8Co cemented carbide in different quenching agents was investigated. The pH of the aqueous solutions varied between 5.2, 7.4 and 8.8. This study was in the temperature range of 650°C to 10°C by using V-notch plate specimens. The results have shown that a corrosive environment has a strong influence on the thermal fatigue crack propagation behavior of the material test. Acidic and alkali environment can reduce the thermal fatigue crack initial life and increase the crack propagation rate. In addition, in the neutral environment, the thermal fatigue crack propagates along the WC/Co phase boundary, and in acidic and alkali environment, the crack propagates through the pits and the large size of the reunion things.

引用

页码：60 / 64