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Comparative investigation of small punch creep resistance of Inconel 718 fabricated by selective laser melting
Wang, L. Y.; Zhou, Z. J.; Li, C. P.; Chen, G. F.; Zhang, G. P.
2019-02-04
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume745Pages:31-38
AbstractCreep performance of selective laser melting (SLM) fabricated Inconel 718 is studied in comparison with that of as-forged and as-cast Inconel 718 via small punch creep test technique. The results show that the SLM-fabricated samples have a time to rupture approximately equal to that of the as-forged samples but much less than the ascast sample due to the difference in the microstructures introduced by these manufacture processes. Intergranular fracture occurred in all the samples. For the SLM-fabricated Inconel 718, cracks initiated from the brittle Laves phases at grain boundaries during the creep process and may speed up the creep and lead to the failure of the sample. "Track-track" melt pool boundaries as one of the important interfaces in SLM-fabricated material can lead to a change in the cracking direction.
KeywordAdditive manufacturing Selective laser melting Small punch creep test Inconel 718 Laves phase
Indexed BySCI
Language英语
WOS IDWOS:000457819400004
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81383
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang, L. Y.,Zhou, Z. J.,Li, C. P.,et al. Comparative investigation of small punch creep resistance of Inconel 718 fabricated by selective laser melting[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,745:31-38.
APA Wang, L. Y.,Zhou, Z. J.,Li, C. P.,Chen, G. F.,&Zhang, G. P..(2019).Comparative investigation of small punch creep resistance of Inconel 718 fabricated by selective laser melting.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,745,31-38.
MLA Wang, L. Y.,et al."Comparative investigation of small punch creep resistance of Inconel 718 fabricated by selective laser melting".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 745(2019):31-38.
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