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A comparative investigation of long-term oxidation behavior of selective laser melting-fabricated Inconel 718 at 650 degrees C
Luo, Yan-Wen1,2; Zhang, Bin1; Song, Zhu-Man2; Li, Chang-Peng3; Chen, Guo-Feng3; Zhang, Guang-Ping2
Corresponding AuthorZhang, Bin(zhangb@atm.neu.edu.cn)
2020-08-14
Source PublicationJOURNAL OF MATERIALS RESEARCH
ISSN0884-2914
Volume35Issue:15Pages:2036-2045
AbstractThe oxidation behavior of the selective laser melting (SLM)-fabricated Inconel 718 was investigated through isothermal oxidation testing at 650 degrees C for 500 h and compared with that of the as-cast and as-forged specimens at the same testing conditions. The effect of microstructure and surface roughness on the oxidation behavior of the SLM-fabricated, as-cast, and as-forged Inconel 718 specimens was examined. The result shows that Inconel 718 fabricated by SLM with the unique layer structure exhibited a better resistance to the 500 h oxidation at 650 degrees C compared with as-cast and as-forged 718 with coarse dendritic structure and uniform equiaxed grain microstructure, respectively. The influence of the surface roughness on the long-time oxidation resistance of SLM specimens is not pronounced compared with that of as-cast and as-forged specimens. The tiny dendrites instead of grain boundaries are a major influencing factor for the oxidation process of SLM specimens. The surface roughness has more evident influence on the oxidation resistance of as-forged specimens than that of the as-cast ones subjected to the 500 h oxidation at 650 degrees C.
Keywordoxidation alloy microstructure
Funding Organizationproject of Manufacturing the swirl nozzles of the high pressure turbine by selective laser melting ; National Natural Science Foundation of China (NSFC) ; Fundamental research project from Shenyang National Laboratory for Materials Science ; National Key R&D Program of China
DOI10.1557/jmr.2020.98
Indexed BySCI
Language英语
Funding Projectproject of Manufacturing the swirl nozzles of the high pressure turbine by selective laser melting ; National Natural Science Foundation of China (NSFC)[51771207] ; National Natural Science Foundation of China (NSFC)[51971060] ; Fundamental research project from Shenyang National Laboratory for Materials Science[L2019R18] ; National Key R&D Program of China[2017YFB0305800]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000559341900013
PublisherCAMBRIDGE UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140199
Collection中国科学院金属研究所
Corresponding AuthorZhang, Bin
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Siemens Ltd, Corp Technol, Mat & Mfg Qualificat Grp, Beijing 100102, Peoples R China
Recommended Citation
GB/T 7714
Luo, Yan-Wen,Zhang, Bin,Song, Zhu-Man,et al. A comparative investigation of long-term oxidation behavior of selective laser melting-fabricated Inconel 718 at 650 degrees C[J]. JOURNAL OF MATERIALS RESEARCH,2020,35(15):2036-2045.
APA Luo, Yan-Wen,Zhang, Bin,Song, Zhu-Man,Li, Chang-Peng,Chen, Guo-Feng,&Zhang, Guang-Ping.(2020).A comparative investigation of long-term oxidation behavior of selective laser melting-fabricated Inconel 718 at 650 degrees C.JOURNAL OF MATERIALS RESEARCH,35(15),2036-2045.
MLA Luo, Yan-Wen,et al."A comparative investigation of long-term oxidation behavior of selective laser melting-fabricated Inconel 718 at 650 degrees C".JOURNAL OF MATERIALS RESEARCH 35.15(2020):2036-2045.
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