Experiment and simulation of fatigue crack growth of SLM nickel base superalloy with different stress ratios and building directions

摘要：

　　Building orientation and stress ratio have much affection on long fatigue crack growth for Selective Laser Melting(SLM)Inconel 625.Compact-tension(CT)specimens in different orientations were tested with stress ratios(R)of 0.1.The Fatigue Crack Growth Rate(FCGR)in Paris was influenced by the loading factor and the difference of microstructure.With the help of finite element software(Abaqus/Franc3D),the FCGR data were calculated excitedly for different directional specimens under R of 0.5.Scanning Electron Microscopy(SEM)method was also introduced to observe the fracture mechanism of FCG in Paris region.

作者: ZhiYuan Xue

作者单位: Engineering,Nanchang Hangkong University,Nanchang 330063,China;Jiangxi Key Laboratory of Micro Aeroengine Technology,NanChang,330063,China

会议类型: 国际会议

会议名称: The 2nd International Symposium on Application of Materials Science and Energy Materials (SAMSE 2018) 第二届材料科学应用与能源材料国际研讨会2018年

会议地点: 上海

会议语种:英文

页码: 1-6

在线出版日期: 2018-12-17（万方平台首次上网日期，不代表论文的发表时间）