The Influence of pH on Thermal Fatigue Crack Propagation Behavior of WC-8%Co Cemented Carbide

摘要：

　　The indentation quench method was used to study the influence of pH values on thermal fatigue crack propagation behavior of WC-8%Co cemented carbide.The pH values of the aqueous solutions were varied between 5.2,7.7 and 8.4.The results showed that a corrosive environment had a strong influence on the thermal fatigue crack propagation behavior of the materials test.Acidic and alkali environment could reduce the thermal fatigue crack initial life and increase the crack propagation rate.Thermal attack resulted in a significant loss in strength and the effect was more significant in acidic environment.XRD patterns indicated that in all cases only WO3 and CoWO4 phases were present in the oxides.

关键词： cemented carbide thermal fatigue crack propagation corrosion

作者: Zhang Zhongjian Xu Tao Peng Wen Chen Ding Jiang Yong Shi Yuanyuan

作者单位: State Key Laboratory of Cemented Carbide,Zhuzhou Hunan 412000,China College of Materials Science and Engineering,Hunan University,Changsha 410082,China

会议类型: 国际会议

会议名称: 2012 Zhuzhou International Conference on Cemented Carbides(株洲硬质合金国际学术会议)

会议地点: 株洲

会议语种:英文

页码: 332-336

在线出版日期: 2012-09-12（万方平台首次上网日期，不代表论文的发表时间）