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.
靳军, 孙俊生, 孙洪根, 卢庆亮, 许京伟, 杨云. 热作模具表面氮合金化堆焊金属的组织和性能[J]. 材料导报, 2019, 33(19): 3184-3188.
JIN Jun, SUN Junsheng, SUN Honggen, LU Qingliang, XU Jingwei, YANG Yun. Microstructure and Performance of Nitrogen Alloying Deposited Metalon Hot Working Dies Surface. Materials Reports, 2019, 33(19): 3184-3188.
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2019, Vol. 33 
