Microstructure of 98M Alloy by Laser Additive Material Manufacturing

IMR OpenIR

	Microstructure of 98M Alloy by Laser Additive Material Manufacturing
	Zhao Chenglei 1,2; Liu Jide 1; Li Jinguo 1; Pei Wenli 2; Zhao Xiang 2
通讯作者	Liu Jide(djliu@imr.ac.cn)
	2017-10-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	46 期号:10 页码:2999-3004
摘要	A Ni-based superalloy was fabricated by laser additive manufacturing technology (LEN98M) and traditional directional solidification (DZ98M). The solidification morphology, microstructures, elements segregation were investigated by optical microscope (OM), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), electron microprobe (EPMA) and differential thermal analysis (DTA). The results show that the primary dendrite arm spacing of the LEN98M alloy is 70 mu m and only as 1/5 of that of the DZ98M alloy. There is serious segregation of alloying elements in the range of dendrite scale. The morphology of gamma' phase is irregular and no precipitation of carbides is observed in LEN98M alloy. Small gamma/gamma' eutectic which are more dispersed occur in interdendritic regions.
关键词	laser additive material manufacturing dendrite segregation
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000435226000041
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/128667
专题	中国科学院金属研究所
通讯作者	Liu Jide
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Northeastern Univ, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhao Chenglei,Liu Jide,Li Jinguo,et al. Microstructure of 98M Alloy by Laser Additive Material Manufacturing[J]. RARE METAL MATERIALS AND ENGINEERING,2017,46(10):2999-3004.
APA	Zhao Chenglei,Liu Jide,Li Jinguo,Pei Wenli,&Zhao Xiang.(2017).Microstructure of 98M Alloy by Laser Additive Material Manufacturing.RARE METAL MATERIALS AND ENGINEERING,46(10),2999-3004.
MLA	Zhao Chenglei,et al."Microstructure of 98M Alloy by Laser Additive Material Manufacturing".RARE METAL MATERIALS AND ENGINEERING 46.10(2017):2999-3004.