Microhardness and microstructure of laser cladding layer on 3Cr13 kitchen knife by disc laser coaxial powder

	Microhardness and microstructure of laser cladding layer on 3Cr13 kitchen knife by disc laser coaxial powder
	Yin, Yan 1; Li, Zilin 1; Xu, Guangwei 1; Zhang, Ruihua 2,3; Qu, Yuebo 2,3
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2016-10-25
卷号	37 期号:10 页码:85-88
关键词	Cutting tools Laser cladding Microhardness Microstructure Stainless steel Wear resistance 3Cr13 stainless steel Buffer effect Laser cladding layer Laser cladding technology Laser-cladding process Low hardness Microhardness and microstructure Work abilities
ISSN号	0253360X
英文摘要	For the problems such as low hardness, poor wear resistance and short service life, the laser cladding technology was used to improve the performance of 3Cr13 stainless steel kitchen knife. The microstructure and microhardness of the laser cladding layer were studied. The results show that the laser cladding layer without porosity, crack and inclusions can be obtained with the optimized laser cladding process, which is well bonded with the substrate. The microhardness of the laser cladding layer fluctuates between 7.0~12.0 GPa. The average microhardness is about 9.0 GPa, which is about 2.3 times of that of the substrate. The hardness of the blade is greatly increased. The laser cladding layer contains a lot of hard WC particles, which are not melted. The unmelted WC particles embedd into relatively soft 304 L matrix. This structure has a toughening buffer effect on the WC particles. Therefore it ensures that the WC particle is not easy to fall off when cutting tools is used. Thus the work ability of the cutting tools can be improved. © 2016, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
语种	中文
出版者	Harbin Research Institute of Welding
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113404]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.China Iron & Steel Research Institute Group, Beijing; 100081, China; 3.Hardware Knife Cut Industrial Technology Research Institute Yangjiang, Yangjiang; 529533, China
推荐引用方式 GB/T 7714	Yin, Yan,Li, Zilin,Xu, Guangwei,et al. Microhardness and microstructure of laser cladding layer on 3Cr13 kitchen knife by disc laser coaxial powder[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2016,37(10):85-88.
APA	Yin, Yan,Li, Zilin,Xu, Guangwei,Zhang, Ruihua,&Qu, Yuebo.(2016).Microhardness and microstructure of laser cladding layer on 3Cr13 kitchen knife by disc laser coaxial powder.Hanjie Xuebao/Transactions of the China Welding Institution,37(10),85-88.
MLA	Yin, Yan,et al."Microhardness and microstructure of laser cladding layer on 3Cr13 kitchen knife by disc laser coaxial powder".Hanjie Xuebao/Transactions of the China Welding Institution 37.10(2016):85-88.