Gear Steel 40CrMo Surface Laser Cladding 0.60C-15.25Cr-l. 85Mo Powder process and Its Structure and Properties

陈磊; 夏志新; 贾帅; 赵京; 傅戈雁; 石世宏

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Gear Steel 40CrMo Surface Laser Cladding 0.60C-15.25Cr-l. 85Mo Powder process and Its Structure and Properties

更新时间：2026-01-21

- Gear Steel 40CrMo Surface Laser Cladding 0.60C-15.25Cr-l. 85Mo Powder process and Its Structure and Properties
- Special Steel Vol. 37, Issue 1, Pages: 22-24(2016)
- 作者机构：
  
  1. 宁波中物激光与光电技术研究所,宁波,315100
  2. 苏州大学沙钢钢铁学院,苏州,215021
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：31 August 2015，
  
  Online First：24 August 2022，
  
  Published：24 August 2016
- 稿件说明：
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陈磊, 夏志新, 贾帅, et al. Gear Steel 40CrMo Surface Laser Cladding 0.60C-15.25Cr-l. 85Mo Powder process and Its Structure and Properties[J]. Special Steel, 2016, 37(1): 22-24.
DOI：

陈磊, 夏志新, 贾帅, et al. Gear Steel 40CrMo Surface Laser Cladding 0.60C-15.25Cr-l. 85Mo Powder process and Its Structure and Properties[J]. Special Steel, 2016, 37(1): 22-24. DOI：

摘要

基于“光束中空，光内送粉”技术对40CrMo钢(/%：0. 40C

1. 20Cr

0. 25Mo)进行表面激光熔覆铁基合金粉末(/% ：0. 60C

15. 25Cr

1. 11Si

1. 85Mo)以提高硬度

获得更加理想的耐磨性能。40CrMo钢硬度HV

0.2

值为 250

激光熔覆后表面硬度HV。.2值为500。对基体的进行200 Y预热处理有利于获得更加良好的冶金结合，其基体的热影响区和结合区也相对较小。由于较大的温度梯度造成的快速冷却和合金化共同影响的结果，试样结合区硬度高于激光熔覆层其他区域。

Abstract

Based on w inside-laser coaxial powder feedingM technology the surface of steel 40CrMo (/% : 0. 40C

1. 20Cr

0. 25Mo) is laser-clad with iron-base alloy powder (/% : 0. 60C

15. 25Cr

1. 1 ISi

1. 85Mo) to increase surface hardness and get idea wear resistance. The hardness HV0 2 value of steel 40CrMo is 250 while the surface hardness HV

0.2

value by laser cladding is 500. It is available to get better metallurgical binding interface between base metal and coating material by base metal pretreated at 200 °C

and the heat affected zone of base metal and binding interface zone are relatively smaller. Due to quick cooling and alloying effect by larger temperature gradient

the hardness of sample bending zone is higher than other area of laser cladding.

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