Effect of the Absorption Layer on the Microstructure and Mechanical Properties of M50 Steel by Laser Shock Peening

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

JOM Pub Date : 2024-10-17 DOI:10.1007/s11837-024-06934-3

Weijun Liu, Yufeng Sun, Xingfu Yu, Yong Su, Chunguang Li

引用次数: 0

Abstract

By means of laser shock peening (LSP) for 1–6 times, microstructure observation, hardness, rotating bending fatigue performance tests, and the influence of the absorption layer on the LSP effect of the M50 steel has been studied. The results show that, after LSP with an absorption layer of aluminum foil or black tape, carbide fracture and pit damage occurred on the surface of the sample, and the damage degree gradually increased with the increase of shock times. The hardness was increased by 9.3% and 7.8%, and the residual stress was increased by 37.5% and 36.1%, respectively. The rotating bending fatigue limit strength of the steel increased by 45.9% and 44.5%. LSP effectively improves the fatigue performance of steel.

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吸收层对激光冲击强化 M50 钢微观结构和机械性能的影响

通过 1-6 次激光冲击强化（LSP）、显微组织观察、硬度、旋转弯曲疲劳性能测试，研究了吸收层对 M50 钢 LSP 效果的影响。结果表明，铝箔或黑胶带吸收层 LSP 后，试样表面出现碳化物断裂和凹坑损伤，且损伤程度随冲击次数的增加而逐渐加重。硬度分别增加了 9.3% 和 7.8%，残余应力分别增加了 37.5% 和 36.1%。钢的旋转弯曲疲劳极限强度分别提高了 45.9% 和 44.5%。LSP 能有效改善钢的疲劳性能。

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

JOM 工程技术-材料科学：综合

CiteScore

4.50

自引率

3.80%

发文量

540

审稿时长

2.8 months

期刊介绍： JOM is a technical journal devoted to exploring the many aspects of materials science and engineering. JOM reports scholarly work that explores the state-of-the-art processing, fabrication, design, and application of metals, ceramics, plastics, composites, and other materials. In pursuing this goal, JOM strives to balance the interests of the laboratory and the marketplace by reporting academic, industrial, and government-sponsored work from around the world.