Microstructures and mechanical properties of Ni60 alloy fabricated by laser metal deposition

doi:10.1088/2053-1591/ab69c7

	Microstructures and mechanical properties of Ni60 alloy fabricated by laser metal deposition
	Wang, Wenquan 2; Liu, Liang 2; Zhang, Xinge 2; Shi, Zimu 3; Tian, Yingtao 1; Lin, Jixing 4
刊名	MATERIALS RESEARCH EXPRESS
	2020
卷号	7
关键词	laser metal deposition Ni60 Ni-Cr-B-Si alloy 3D printing microstructure mechanical property
DOI	10.1088/2053-1591/ab69c7
通讯作者	Zhang, Xinge(zhangxinge@jlu.edu.cn)
英文摘要	Due to its low melting point and high hardness, Ni60 (Ni-Cr-B-Si) alloy is widely used as surface cladding material for mould steel. In present study, Ni60 alloy thin-walled samples were fabricated using laser metal deposition (LMD) technology on H13 steel substrate which is usually used as mould material. The microstructure and mechanical properties (microhardness and wear resistance) of LMD Ni60 alloy were investigated. The results show that the LMD Ni60 alloy sample is mainly composed of Ni, Ni3Fe, Ni3B, Ni3Si, CrB, Cr5B3 and Cr7C3. The microstructures of the sample mainly include Ni-B-Si eutectics, Ni columnar dendrites and precipitates (boride and carbide). In the region with faster cooling rate of the sample, eutectics take a larger proportion, meanwhile precipitates are refined and dispersed uniformly. So hardness of the region can reach 950 HV. In the interlayer region, eutectics decrease while Ni dendrites increase because of the influence of remelting. The hardness of this region is about 750 HV. Wear resistance tests indicated that the wear resistance of LMD Ni60 alloy is about 9 times of H13 steel.
资助项目	Jilin Province[440050316A14] ; Jilin Province[SXGJQY2017-14] ; Jilin University[440050316A14] ; Jilin University[SXGJQY2017-14] ; Wenzhou Science and Technology Bureau[ZG2017032]
WOS关键词	OPTIMIZATION ; COATINGS ; CRACKING
WOS研究方向	Materials Science
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000520158200001
资助机构	Jilin Province ; Jilin University ; Wenzhou Science and Technology Bureau
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103803]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Xinge
作者单位	1.Univ Lancaster, Dept Engn, Lancaster LA1 4YW, England 2.Jilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China 3.Chinese Acad Sci, Inst Solid Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 4.Zhejiang Ind & Trade Vocat Coll, Dept Mat Engn, Wenzhou 325003, Peoples R China
推荐引用方式 GB/T 7714	Wang, Wenquan,Liu, Liang,Zhang, Xinge,et al. Microstructures and mechanical properties of Ni60 alloy fabricated by laser metal deposition[J]. MATERIALS RESEARCH EXPRESS,2020,7.
APA	Wang, Wenquan,Liu, Liang,Zhang, Xinge,Shi, Zimu,Tian, Yingtao,&Lin, Jixing.(2020).Microstructures and mechanical properties of Ni60 alloy fabricated by laser metal deposition.MATERIALS RESEARCH EXPRESS,7.
MLA	Wang, Wenquan,et al."Microstructures and mechanical properties of Ni60 alloy fabricated by laser metal deposition".MATERIALS RESEARCH EXPRESS 7(2020).