因科镍合金
材料科学
因科镍合金625
空隙(复合材料)
冶金
沉积(地质)
金属粉末
金属
图层(电子)
航空航天
复合材料
微观结构
工程类
古生物学
航空航天工程
生物
沉积物
合金
作者
Yasuhiro Kakinuma,M. Mori,Yohei Oda,Takanori Mori,Makoto Kashihara,Adam Hansel,Makoto Fujishima
出处
期刊:CIRP Annals
[Elsevier]
日期:2016-01-01
卷期号:65 (1): 209-212
被引量:57
标识
DOI:10.1016/j.cirp.2016.04.058
摘要
Directed energy deposition (DED) for producing a complex shaped metal part has attracted attention in the aerospace industry. However, DED easily causes structural defects such as voids and compositional changes, which results in the deterioration of the mechanical strength of the product. Hence, reducing such defects is essential. In this study, the influence of the powder characteristics of Inconel 625 was focused upon, and the void density and compositional change inside the deposited part were analyzed. The results indicated that a slight amount of carbon in the particle caused void generation and a carbon layer was formed at the surface.
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