[1]朱 磊,徐佳辰,张梦佳,等.doi: 10.3969/j.issn.1001-3849.2025.05.009预变形对激光处理AZ31镁合金组织与性能的影响[J].电镀与精饰,2025,(05):59-65.
　Zhu Lei*,Xu Jiachen,Zhang Mengjia,et al.Effect of predeformation on microstructure and properties of AZ31 magnesium alloy treated by laser[J].Plating & Finishing,2025,(05):59-65.
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doi: 10.3969/j.issn.1001-3849.2025.05.009预变形对激光处理AZ31镁合金组织与性能的影响()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年05
页码:
59-65
栏目:
出版日期:
2025-05-31

文章信息/Info

Title:
Effect of predeformation on microstructure and properties of AZ31 magnesium alloy treated by laser
作者:
朱 磊1; 2; 徐佳辰1; 张梦佳3; 刘 刚4
(1. 河南工业职业技术学院 机械工程学院,河南 南阳 473000 ;2. 南阳高性能金属材料重点实验室,河南 南阳 473000 ;3. 武汉科技大学 高性能钢铁材料及其应用省部共建协同创新中心,湖北 武汉430081;4. 南阳理工学院 智能制造学院,河南 南阳 473004)
Author(s):
Zhu Lei1; 2*;  Xu Jiachen1;  Zhang Mengjia3;  Liu Gang4*
(1. School of Mechanical Engineering, Henan Polytechnic Institute, Nanyang 473000, China; 2. Nanyang Key Laboratory of High Performance Metal Materials, Henan Polytechnic Institute, Nanyang 473000, China; 3. Collaborative Innovation Center for Advanced Steels, International Research Institute for Steel Technology, Wuhan University of Science and Technology, Wuhan 430081, China; 4 School of Intelligent Manufacturing, Nanyang Institute of Technology, Nanyang 473004, China)
关键词:
AZ31镁合金; 预变形; 激光熔凝处理
Keywords:
AZ31 magnesium alloy;  predeformation;  laser melting treatment
分类号:
TG146.22
文献标志码:
A
摘要:
对AZ31镁合金进行不同的拉伸预变形，预变形量分别为1%、3%、5%、7%，然后对其用激光焊机进行激光表面熔凝处理。采用光学显微镜、显微硬度计、拉伸试验机、电化学工作站等对不同预变形量条件下激光熔凝处理AZ31镁合金的组织和性能进行分析与测试，以探究预变形对激光处理AZ31镁合金组织与性能的影响。结果表明：随着预变形量的增加，表面熔凝层的硬度逐渐增加，热影响区的晶粒尺寸先变小后变大，材料的抗拉强度随之先变大后变小。在预变形量为1%时，抗拉强度最大，达到272.6 MPa；熔凝层组织腐蚀电化学测试结果显示，在预变形量为5%时，材料的腐蚀电流密度最低，耐腐蚀性能最好。
Abstract:
The effect of predeformation on the microstructure and properties of AZ31 magnesium alloy treated by laser was mainly explored. First, AZ31 magnesium alloy is subjected to different deformation amounts(1%, 3%, 5%, 7%), and then laser surface melting treatment is carried out by laser welding machine. The microstructure and properties of AZ31 magnesium alloy treated by laser were analyzed and tested by means of optical microscope, microhardness tester, tensile tester, electrochemical workstation . The results show that when the predeformation amount is 1%, the microstructure is the densest, and the surface microhardness is increased. The corrosion electrochemistry of the melt layer showed that the corrosion current density was the lowest and the corrosion resistance was the best when the predeformation was 5%.

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更新日期/Last Update: 2025-05-19