Wear and corrosion performance of AZ31B magnesium alloy strengthened by combination of surface mechanical attrition treatment and laser shock peening

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Science Pub Date : 2025-09-07 DOI:10.1007/s10853-025-11440-1

Yu Yang, Liang Tang, Wangfan Zhou

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引用次数: 0

Abstract

The poor wear and corrosion resistance of magnesium alloys limits their applications in structural components. In this study, the effect of surface mechanical attrition treatment (SMAT), laser shock peening (LSP), and the combination of the two techniques on the wear and corrosion performance of the AZ31B magnesium alloy was investigated. The results demonstrate that both SMAT and LSP refine the surface grains of the AZ31B magnesium alloy. Moreover, SMAT facilitates the formation of surface nanocrystallization, which is preserved following the application of LSP. The wear rate of the specimen subjected to LSP following SMAT treatment is 79.8% lower than that of the bare specimen under room temperature dry friction conditions. The corrosion rate is 79.8% lower than that of the bare specimen in a 3.5% NaCl solution. The specimen subjected to LSP following SMAT treatment exhibits an enhanced anti-wear property and corrosion resistance. The combination of SMAT and LSP not only retains the surface hardening effect of SMAT but also has the advantages of a deep compressive stress layer and hardening layer of LSP, thus more effectively improving the surface properties of AZ31B magnesium alloys.

Graphical abstract

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采用表面机械磨损处理和激光冲击强化相结合的方法增强AZ31B镁合金的磨损和腐蚀性能

镁合金的耐磨性和耐腐蚀性较差，限制了其在结构部件中的应用。本研究研究了表面机械磨损处理（SMAT）、激光冲击强化（LSP）以及两者结合处理对AZ31B镁合金磨损和腐蚀性能的影响。结果表明：SMAT和LSP均能细化AZ31B镁合金的表面晶粒；此外，SMAT有利于表面纳米晶的形成，并在LSP应用后保持了纳米晶的形成。在室温干摩擦条件下，SMAT处理后的LSP试样的磨损率比裸试样低79.8%。在3.5% NaCl溶液中，腐蚀速率比裸试样低79.8%。在SMAT处理后，试样经过LSP处理，表现出增强的抗磨损性能和耐腐蚀性。SMAT与LSP的结合既保留了SMAT的表面硬化效果，又具有LSP的深压应力层和硬化层的优点，从而更有效地改善了AZ31B镁合金的表面性能。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Materials Science 工程技术-材料科学：综合

CiteScore

7.90

自引率

4.40%

发文量

1297

审稿时长

2.4 months

期刊介绍： The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.