旋耕刀表面激光熔覆铁基合金的工艺参数、组织与性能优化

doi:10.13251/j.issn.0254-6051.2025.10.046

金属热处理 ›› 2025, Vol. 50 ›› Issue (10): 283-291.DOI: 10.13251/j.issn.0254-6051.2025.10.046

旋耕刀表面激光熔覆铁基合金的工艺参数、组织与性能优化

孟祥雨¹, 郭志康¹, 赵婧琦², 张月², 杨丹¹

1.吉林农业大学工程技术学院, 吉林长春 130118;
2.大唐东北电力试验研究院有限公司, 吉林长春 130102

收稿日期:2025-04-21 修回日期:2025-08-12 出版日期:2025-10-25 发布日期:2025-11-04
通讯作者: 杨丹,副教授,硕士,E-mail: yangdan228@163.com
作者简介:孟祥雨(1986—),男,讲师,硕士,主要研究方向为激光表面改性、复合材料数字化设计,E-mail: xiangyum@jlau.edu.cn。
基金资助:
吉林省自然科学基金面上项目(20230101209JC)

Optimization of process parameters, microstructure and properties of laser cladding iron-based alloy on surface of rotary tillage blades

Meng Xiangyu¹, Guo Zhikang¹, Zhao Jingqi², Zhang Yue², Yang Dan¹

1. College of Engineering and Technology, Jilin Agricultural University, Changchun Jilin 130118, China;
2. Datang Northeast Electric Power Test & Research Institute, Changchun Jilin 130102, China

Received:2025-04-21 Revised:2025-08-12 Online:2025-10-25 Published:2025-11-04

摘要/Abstract

摘要： 通过激光熔覆技术在旋耕刀表面熔覆Fe60合金粉末,系统分析了激光功率(1.5、2.0和2.5 kW)、扫描速度(200、250和300 mm/min)和送粉速率(12、14和16 g/min)对熔覆层显微组织、硬度及耐磨性的影响。结果显示,适中的激光功率(2.0 kW)、扫描速度(250 mm/min)和送粉速率(14 g/min)能够形成致密的显微组织,显著提高硬度(983 HV),并降低磨损率(1.15×10^-3 mm³/(N·m))。过低或过高的工艺参数均会导致熔覆层性能下降。

关键词: 激光熔覆, 65Mn钢, Fe60合金, 耐磨性能

Abstract: Fe60 alloy cladding layer were prepared on the surface of the rotary tillage blade by laser cladding technology. The effects of laser power (1.5, 2.0, 2.5 kW), scanning speed (200, 250, 300 mm/min), and powder feed rate (12, 14, 16 g/min) on microstructure, hardness and wear resistance of the cladding layer were analyzed. The results show that choosing moderate laser power (2.0 kW), scanning speed (250 mm/min) and powder feed rate (14 g/min) can produce a dense microstructure, resulting in higher hardness (983 HV) and lower wear rate (1.15×10^-3 mm³/(N·m)). Both excessively low and high powder feed rates will reduce the performance of the cladding layer.

Key words: laser cladding, 65Mn steel, Fe60 alloy, wear resistance

中图分类号:

TG456.7

孟祥雨, 郭志康, 赵婧琦, 张月, 杨丹. 旋耕刀表面激光熔覆铁基合金的工艺参数、组织与性能优化[J]. 金属热处理, 2025, 50(10): 283-291.

Meng Xiangyu, Guo Zhikang, Zhao Jingqi, Zhang Yue, Yang Dan. Optimization of process parameters, microstructure and properties of laser cladding iron-based alloy on surface of rotary tillage blades[J]. Heat Treatment of Metals, 2025, 50(10): 283-291.

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旋耕刀表面激光熔覆铁基合金的工艺参数、组织与性能优化

Optimization of process parameters, microstructure and properties of laser cladding iron-based alloy on surface of rotary tillage blades

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