激光熔覆层的力学和耐腐蚀性分析

IF 1.9 4区材料科学 Q3 Materials Science

Science and Engineering of Composite Materials Pub Date : 2022-01-01 DOI:10.1515/secm-2022-0161

Yinghao Cui, Cong Xie, Jialin Liu, Shi-rui Guo, Lu-jun Cui

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引用次数: 2

摘要

摘要为了提高矿山液压支柱的力学性能和耐腐蚀性，采用半导体光纤耦合激光器在27SiMn钢基体（SUB）上激光熔覆铁基合金粉末。在实验的基础上，对所获得的包层（CL）的微观结构、力学性能和耐腐蚀性进行了研究。结果表明，CL顶部的等轴晶粒细小且排列紧密。与SUB相比，CL平均显微硬度提高了0.3倍，平均摩擦系数降低了0.12，磨损量显著减少。CL与SUB的结合强度良好，抗拉强度提高10.82%，与SUB相比，CL的力学性能和耐腐蚀性更好。该研究对水工柱修复加固工程的实践具有重要的指导意义。

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Mechanical and corrosion resistance analysis of laser cladding layer

Abstract To improve the mechanical properties and corrosion resistance of the hydraulic column in the mine, a semiconductor fiber-coupled laser was used to laser-clad iron-based alloy powder on a 27SiMn steel substrate (SUB). The microstructure, mechanical properties, and corrosion resistance of the obtained cladding layer (CL) were studied based on experiments. Results show that equiaxed grains at the top of the CL are fine and tightly arranged. Compared with the SUB, the CL average microhardness is increased by 0.3 times, the average friction coefficient is decreased by 0.12, and the wear amount is significantly reduced. The bonding strength between the CL and the SUB is good, and the tensile strength is increased by 10.82%. Compared with the SUB, the mechanical properties and corrosion resistance of the CL are better. The research has an important guiding significance for the practice of hydraulic column repair and strengthening engineering.

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来源期刊

Science and Engineering of Composite Materials 工程技术-材料科学：复合

CiteScore

3.10

自引率

5.30%

发文量

审稿时长

4 months

期刊介绍： Science and Engineering of Composite Materials is a quarterly publication which provides a forum for discussion of all aspects related to the structure and performance under simulated and actual service conditions of composites. The publication covers a variety of subjects, such as macro and micro and nano structure of materials, their mechanics and nanomechanics, the interphase, physical and chemical aging, fatigue, environmental interactions, and process modeling. The interdisciplinary character of the subject as well as the possible development and use of composites for novel and specific applications receives special attention.