会议论文详细信息
2nd International Symposium on Application of Materials Science and Energy Materials
Experiment and simulation of fatigue crack growth of SLM nickel base superalloy with different stress ratios and building directions
材料科学;能源学
Xue, Zhi Yuan^1^2
Engineering, Nanchang Hangkong University, Nanchang
330063, China^1
Jiangxi Key Laboratory of Micro Aeroengine Technology, Nanchang
330063, China^2
关键词: Building orientation;    Compact tension specimen;    Finite element software;    Fracture mechanisms;    Loading factors;    Long fatigue crack growths;    Nickel base superalloy;    Selective laser melting (SLM);   
Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/3/032036/pdf
DOI  :  10.1088/1757-899X/490/3/032036
学科分类:材料科学(综合)
来源: IOP
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【 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.

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