Dynamic evolution behavior of cracks for single-track and multi-track clads in laser cladding

doi:10.1007/s00170-023-12766-3

CORC > 力学研究所 > 中国科学院力学研究所 > 宽域飞行工程科学与应用中心

	Dynamic evolution behavior of cracks for single-track and multi-track clads in laser cladding
	Bian YH(边艳华)2,3,4; Dong BX(董斌鑫)2,4; Chen B(陈博)2,4; Guo, Jianhao 1; Li SX(李少霞)2,4; Tian CX(田崇鑫)2,4; Xu SW(徐守文)2,4; He XL(何秀丽)2,4; Yu G(虞钢)2,3,4
刊名	INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
	2023-12-15
页码	16
关键词	Laser cladding Additive manufacturing Cracks Residual stress Thermal stress
ISSN号	0268-3768
DOI	10.1007/s00170-023-12766-3
通讯作者	He, Xiuli(xlhe@imech.ac.cn) ; Yu, Gang(gyu@imech.ac.cn)
英文摘要	It is generally believed that the crack defect is the fatal issue that restricts the development of additive manufacturing technology. In this paper, Ni60 alloy coating on H13 surface is manufactured by laser cladding, and the dynamic evolution behavior of cracks during the process of single-track and multi-track overlapping cladding is studied. The morphology and microstructure characteristics of the coating and the crack initiation and propagation behavior are analyzed. The results show that the cracks mainly originate from the surface of the clad and propagate along the depth direction to the substrate. The laser power and scanning speed are the main factors that affect the crack behavior. With the increase of laser power, the process range for crack-free cladding is expanded. When the cladding speed is relatively low, the crack in the substrate can be initiated, and the crack propagates in the direction parallel to the laser scanning speed, which is manifested as the substrate being torn. The transverse cracks and the network-shaped cracks propagate continuously from single-track to multi-track cladding process. The crack-free cladding process can be achieved by a reasonable selection of processing parameters. This work aims to deeply understand the dynamic evolution behavior of cracks in laser additive manufacturing, and thus provide theoretical guidance for the crack-free cladding process.
分类号	Q3
资助项目	National Natural Science Foundation of China[11502269] ; National Natural Science Foundation of China[11672304] ; Beijing Municipal Commission of Science and Technology[Z181100003818015]
WOS关键词	COMPOSITE COATINGS ; THERMAL-BEHAVIOR ; RESIDUAL-STRESS ; ALLOY ; MICROSTRUCTURE ; RESISTANCE ; INITIATION ; LAYER
WOS研究方向	Automation & Control Systems ; Engineering
语种	英语
WOS记录号	WOS:001126283500006
资助机构	National Natural Science Foundation of China ; Beijing Municipal Commission of Science and Technology
其他责任者	He, Xiuli ; Yu, Gang
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93800]
专题	宽域飞行工程科学与应用中心
作者单位	1.China Railway 14TH Bur Groupment Shield Construct, Nanjing 210000, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Inst Mech, 15,North 4Th Ring West Rd, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Bian YH,Dong BX,Chen B,et al. Dynamic evolution behavior of cracks for single-track and multi-track clads in laser cladding[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2023:16.
APA	边艳华.,董斌鑫.,陈博.,Guo, Jianhao.,李少霞.,...&虞钢.(2023).Dynamic evolution behavior of cracks for single-track and multi-track clads in laser cladding.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,16.
MLA	边艳华,et al."Dynamic evolution behavior of cracks for single-track and multi-track clads in laser cladding".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY (2023):16.