热作模具表面氮合金化堆焊金属的组织和性能

doi:10.11896/cldb.18040216

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Abstract Based on new martensite stainless steel electrode used in hot working die overlaying welding, with adding CrN to electrode coat to realize nitrogen alloying, this paper aimed to research the effort of CrN addition on microstructure, hardness and high temperature wear property of deposited metal. The results indicate that the microstructure of deposited metal are martensite and a small amount of residual austenite. The quantity of carbon nitrides in deposited metal gradually increased with the increase of nitrogen content, accompanied with refined and homogeneous microstructure and improvement of hardness and wear resistance. It also reveals hardness of deposited metal reaches maximum (51.3HRC) when 3% CrN is added. Moreover, nitrogen alloying improves the resistance to temper softening of deposited metals, and at the same time the friction and wear resistance is superior to that of non-nitrogen alloying deposited metals.

Key words： martensite stainless steel nitrogen alloying hot working die overlaying welding microstructure and performance

Published: 15 August 2019

CLC number:

TG421

About author:: Jun Jin received bachelor’s degree in engineering from Harbin University of Science and Technology in 2017. He is currently a graduate student in the School of Materials Science and Engineering, Shandong University under the guidance of Prof. Junsheng Sun. His research has focused on welding material.Junsheng Sun, a professor at the School of Materials Science and Engineering of Shandong University, the fifth batch of young and middle-aged academic figures in Shandong Province, a member of the Metal Welding and Welding Materials Committee of the Welding Society of China Mechanical Engineering Society

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	JIN Jun
	SUN Junsheng
	SUN Honggen
	LU Qingliang
	XU Jingwei
	YANG Yun

Cite this article:

JIN Jun,SUN Junsheng,SUN Honggen, et al. Microstructure and Performance of Nitrogen Alloying Deposited Metalon Hot Working Dies Surface[J]. Materials Reports, 2019, 33(19): 3184-3188.

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http://www.mater-rep.com/EN/10.11896/cldb.18040216 OR http://www.mater-rep.com/EN/Y2019/V33/I19/3184

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