30CrMnSi钢表面激光熔覆强化技术研究

黎文强

doi:10.15980/j.tzzz.2019.10.004

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30CrMnSi钢表面激光熔覆强化技术研究
Laser Cladding Intensificationon on 30CrMnSi Surface
2019年39卷第10期页码：1058-1061
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.10.004

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[1]黎文强.30CrMnSi钢表面激光熔覆强化技术研究[J].特种铸造及有色合金,2019,39(10):1058-1061.

Li Wenqiang. Laser Cladding Intensificationon on 30CrMnSi Surface[J]. Special Casting & Nonferrous Alloys, 2019,39(10):1058-1061.
[1]黎文强.30CrMnSi钢表面激光熔覆强化技术研究[J].特种铸造及有色合金,2019,39(10):1058-1061. DOI： 10.15980/j.tzzz.2019.10.004.

Li Wenqiang. Laser Cladding Intensificationon on 30CrMnSi Surface[J]. Special Casting & Nonferrous Alloys, 2019,39(10):1058-1061. DOI： 10.15980/j.tzzz.2019.10.004.

摘要

采用半导体激光熔覆技术在30CrMnSi钢表面制备了Fe基耐磨耐蚀强化层

分析了激光熔覆层的显微组织和物相结构

并测试激光熔覆层的硬度、耐磨性能和耐腐蚀性能。结果表明

熔覆层组织以细小均匀的等轴晶为主

主要由基本相Fe、FeCr、FeNi、FeSi、FeB等相组成

熔覆层表面硬度(HV

0.1

)可达718.8

相对于基材

耐磨性能提高7倍以上

耐腐蚀性能也大幅提高。

Abstract

Fe-based alloy layer was claded on 30CrMnSi steel by semiconductor laser cladding technology.The microstructure and phase structure of the laser cladding layer were analyzed by OM and SEM.The hardness

wear resistance and corrosion resistance of the laser cladding layer were tested.The results reveal that the microstructure of the Fe-based cladding layer mainly consists of fine and uniform equiaxed grains

which are mainly composed of Fe-basic

FeCr

FeNi

FeSi and FeB phase.And the surface microhardness of the cladding layer reach 718.8(HV

0.1

)

and the wear resistance can be increased by more than 7 times compared with that of the base 30CrMnSi steel

so the corrosion resistance can be improved greatly.