[1]胡友芹,杨冠军,雒晓涛,等.激光辅助冷喷涂CuCrZr组织及力学性能研究[J].中国材料进展,2026,45(02):145-154.[doi:10.7502/j.issn.1674-3962.202506009]
　HU Youqin,YANG Guanjun,LUO Xiaotao,et al.Microstructure and Mechanical Properties of CuCrZr Prepared by LaserAssisted Cold Spraying[J].MATERIALS CHINA,2026,45(02):145-154.[doi:10.7502/j.issn.1674-3962.202506009]
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激光辅助冷喷涂CuCrZr组织及力学性能研究()

中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
45
期数:
2026年02
页码:
145-154
栏目:
出版日期:
2026-02-28

文章信息/Info

Title:
Microstructure and Mechanical Properties of CuCrZr Prepared by LaserAssisted Cold Spraying
文章编号:
1674-3962(2026)02-0145-10
作者:
胡友芹; 杨冠军; 雒晓涛; 李长久
西安交通大学 金属材料强度全国重点实验室，陕西 西安 710049
Author(s):
HU Youqin; YANG Guanjun; LUO Xiaotao; LI Changjiu
Key Laboratory for Mechanical Behavior of Materials, Xi’ an Jiaotong University, Xi’ an 710049, China
关键词:
铜合金; 冷喷涂; 激光辅助冷喷涂; CuCrZr涂层; 结合强度; 摩擦磨损性能
Keywords:
copper alloy;  cold spraying;  laser-assisted cold spraying;  CuCrZr coating; adhesion strength;  friction and wear properties
分类号:
TG174.4
DOI:
10.7502/j.issn.1674-3962.202506009
文献标志码:
A
摘要:
针对铜合金零部件服役损伤失效问题，采用冷喷涂（CS）对铜合金受损零部件进行修复，并加入激光辅助。研究了冷喷涂与激光辅助冷喷涂（LACS）参数对CuCrZr涂层的显微组织特性与力学性能的影响。采用氮气作为高压气源，在3、4 MPa冷喷涂压力和400、600 ℃温度以及1、2和3 kW LACS激光功率参数下制备CuCrZr涂层，通过扫描电镜、光镜、3D共聚焦显微镜、显微硬度计、万能试验机、摩擦磨损试验机对涂层显微组织和力学性能进行表征。结果表明，LACS涂层相比于CS涂层表面粗糙度更低、孔隙率略高、显微硬度相当，结合强度提升243%，耐摩擦磨损性能得到改善。LACS-3 MPa-600 ℃-3 kW涂层表面粗糙度（Sa）为(14.9±1.2) μm，孔隙率为(0.7±0.3)%，显微硬度为(161±13)HV01，结合强度为(34.0±7.2) MPa，磨损率为(2.8±0.8)×10-4 mm3·N-1·m-1。LACS相较于CS更易制备性能优异的CuCrZr修复涂层，随激光功率提升，涂层孔隙率降低，结合强度显著提高，涂层耐磨损性能提高。CuCrZr涂层结合机制为机械嵌合+部分冶金结合；摩擦磨损机制以黏着磨损为主，磨粒磨损为辅。LACS方法制备CuCrZr涂层满足维修CuCrZr合金性能需求。
Abstract:
To solve the problem of service damage and failure of copper alloy parts, cold spraying (CS) was used to repair damaged copper alloy parts with the addition of laser assistance. The effects of cold spraying and laserassisted cold spraying (LACS) parameters on the microstructure and mechanical properties of CuCrZr coatings were investigated. Nitrogen was used as the highpressure gas source to prepare the CuCrZr coatings under the parameters of cold spraying pressure of 3，4 MPa and temperature of 400,600 ℃, and laserassisted cold spraying (LACS) with laser power of 1，2 and 3 kW, and the microstructure and mechanical properties of the coatings were characterized by scanning electron microscopy, light microscopy, 3D confocal microscopy, microhardness tester, universal testing machine and friction and wear tester. The LACS coating has lower surface roughness, slightly higher porosity, comparable microhardness, 243% higher adhesion strength, and improved friction and wear resistance compared to the CS coating. The surface roughness (Sa) of the LACS-3 MPa-600 ℃-3 kW coating is (14.9±1.2) μm, the porosity is (0.7±0.3)%, the microhardness is (161±13)HV0.1, the adhesion strength is (34.0±7.2) MPa, and the wear rate is (2.8±0.8)×10-4 mm3·N-1·m-1. LACS is easier to prepare excellent CuCrZr repair coatings than CS, and with the increase of the laser power, the porosity of the coatings is reduced, the adhesion strength is increased significantly, and the wear resistance of the coatings is improved. The bonding mechanism of CuCrZr coatings is mechanical embedding and partial metallurgical bonding. The friction wear mechanism is mainly adhesive wear, supplemented by abrasive wear. The CuCrZr coatings prepared by the LACS method can meet the requirements of repairing CuCrZr alloys.

备注/Memo

备注/Memo:
收稿日期：2025-06-09修回日期：2025-07-10 基金项目：“十四五”装备预研共用技术项目(50904010901) 第一作者：胡友芹，男，2000年生，硕士研究生 通讯作者：杨冠军，男，1977年生，教授，博士生导师， Email：ygj@mail.xjtu.edu.cn
更新日期/Last Update: 2026-02-02