文献类型：期刊文献

英文题名：Micromechanisms of fatigue fracture at diffusion bonded interface of austenitic stainless steel

作者：Li, Shuxin[1]; Tu, Shandong[1]; Xuan, Puzhen[1]; Li, Yujia[1]

机构：[1] Institute of Process Equipment, East China University of Science and Technology, Shanghai 200237, China

年份：2007

卷号：21

期号：SUPPL.

起止页码：152

外文期刊名：Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research

收录：EI(收录号：20072910702411)

语种：英文

外文关键词：Crack propagation - Diffusion bonding - Fatigue of materials - Fatigue testing - Fracture - Grain boundaries

摘要：An fatigue experiment on the 316L stainless steel diffusion bonding joints was conducted in order to observe the evolution of microvoids and grains, and the mechanism of fatigue fracture at the interface was investigated. The results showed that most of the interfacial microvoids become wider rather than propagate along the interface. Only the microvoids located at narrow grain boundaries grow. The crack propagated along the interface may turn to intergranulation when the interfacial crack meets the grain boundary. The crack grows along either the interface of the joint or the grain boundary. However, the crack growth along the interface is prior to that along the grain boundary.