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Effects of surface roughness and build thickness on fatigue properties of selective laser melted Inconel 718 at 650 degrees C
Wan, H. Y.; Luo, Y. W.; Zhang, B.; Song, Z. M.; Wang, L. Y.; Zhou, Z. J.; Li, C. P.; Chen, G. F.; Zhang, G. P.
2020-08-01
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
Volume137
AbstractEffects of the surface roughness and the build thickness on fatigue properties of selective laser melted Inconel 718 were investigated at 650 degrees C. The result indicated that fatigue strength was enhanced by similar to 50% after surface machining and polishing. The thinner un-machined specimens exhibit a longer fatigue lifetime than the thicker ones, while the opposite trend appears in the machined specimens. Finite element simulations reveal that the defect shape has more evident influence on fatigue properties than the defect depth when it is less than 200 mu m. Safety thresholds of the stress concentration factor and the defect depth are 2 and 50 mu m, respectively.
DOI10.1016/j.ijfatigue.2020.105654
WOS IDWOS:000534570200011
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82672
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Wan, H. Y.,Luo, Y. W.,Zhang, B.,et al. Effects of surface roughness and build thickness on fatigue properties of selective laser melted Inconel 718 at 650 degrees C[J]. INTERNATIONAL JOURNAL OF FATIGUE,2020,137.
APA Wan, H. Y..,Luo, Y. W..,Zhang, B..,Song, Z. M..,Wang, L. Y..,...&Zhang, G. P..(2020).Effects of surface roughness and build thickness on fatigue properties of selective laser melted Inconel 718 at 650 degrees C.INTERNATIONAL JOURNAL OF FATIGUE,137.
MLA Wan, H. Y.,et al."Effects of surface roughness and build thickness on fatigue properties of selective laser melted Inconel 718 at 650 degrees C".INTERNATIONAL JOURNAL OF FATIGUE 137(2020).
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