激光处理对9Cr2钢组织的影响

特殊钢 ›› 2006, Vol. 27 ›› Issue (1): 39-41.

激光处理对9Cr2钢组织的影响

李文学¹, 张风云¹, 陈宏杰², 赵能怀², 刘凯²

1内蒙古科技大学材料与冶金学院，包头014010;
2包头市光通激光技术有限公司，包头014010

收稿日期:2005-09-09 出版日期:2006-02-01 发布日期:2006-02-01
作者简介:李文学(1955-),女，教授，从事材料组织转变和加工工艺的研究

Effect of Laser Quenching Treatment on Structure of Steel 9Cr2

Li Wenxue¹,Zhang Fengyun¹,Chen Hongjie²,Zhao Nenghuai², Liu Kai²

1 Material and Metallurgical School,Inner Mongolia University of Science and Technology,Baotou 014010;
2 Baotou Guangtong Laser Technological Co Lad,Baotou 014010

Received:2005-09-09 Published:2006-02-01 Online:2006-02-01

摘要/Abstract

摘要： 用 3kW连续CO₂ 横流激光器对成分(%)为0.80~0.95C,0.40Si,0.40Mn,1.30~1.70Cr的9Cr2 钢进行激光表面热处理，分析了在激光功率1.8～2.4 kW、激光束扫描速度500～1000mm/min的激光处理后该钢的表面组织和硬化层深度。试验结果表明，当激光束功率较大、扫描速度较小时处理后组织区域为熔化区、相变区、热影响区和基体，硬化层厚度0.4~0.8mm; 当激光束功率较小、扫描速度较大时处理后组织区域为相变区、热影响区和基体，硬化层深度0.2~0.6 mm

Abstract: The steel 9Cr2-0.80~0.95C,0.40Si,0.40Mn,1.30~1.70Cr was laser quenched surface heat treatment by a 3 kW continuous CO₂ cross current laser with laser power 1.8~2.4 kW and laser beam scan velocity 500~1000 mm/min,and the surface structure and the case hardening depth were analyzed and tested. The test results showed that with higher laser power and lower beam scan velocity the case structure consisted of melting zone,phase transformation zone, heat influence zone and matrix and the case hardening depth was 0.4~0.8 mm;and with lower laser power and higher beam velocity the case structure consisted of phase transformation zone, heat influence zone and matrix and the case hardening depth was 0.2~0.6mm

李文学, 张风云, 陈宏杰, 赵能怀, 刘凯. 激光处理对9Cr2钢组织的影响[J]. 特殊钢, 2006, 27(1): 39-41.

Li Wenxue, Zhang Fengyun, Chen Hongjie, Zhao Nenghuai, Liu Kai. Effect of Laser Quenching Treatment on Structure of Steel 9Cr2[J]. Special Steel, 2006, 27(1): 39-41.