孵化距离和扫描路径对MgAl2O4/Ti6Al4V飞秒激光焊接接头组织、力学性能和残余应力的影响

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: A Pub Date : 2025-05-14 DOI:10.1016/j.msea.2025.148505

Hao Jiang , Chun Li , Xiaojian Mao , Wendi Zhao , Ningce Wei , Xiaoqing Si , Junlei Qi , Jian Cao

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引用次数: 0

摘要

研究了孵育距离和扫描路径对MgAl2O4/Ti6Al4V接头显微组织和力学性能的影响。在我们的研究中，采用了三种扫描路径（蛇形、圆角-蛇形和同心圆）和五种孵化距离。飞秒激光对孵化距离为0.025 mm的同心圆焊缝直接焊接，剪切强度最高，可达27.56 MPa。本研究采用拉曼光谱进行了无损残余应力测量，同心圆焊缝接头的最小应力值为22.83 MPa，与抗剪强度的变化趋势一致。

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Effect of hatching distance and scanning path on MgAl2O4/Ti6Al4V joint by femtosecond laser welding: Microstructure, mechanical properties and residual stress

The effect of hatching distance and scanning path on the microstructure and mechanical properties of MgAl₂O₄/Ti6Al4V joint has been elucidated. In our research, three kinds of scanning paths (serpentine, fillet-serpentine and concentric circle) and five hatching distances are adopted. Direct bonding of the concentric circle welding seam with the hatching distance of 0.025 mm by femtosecond laser showed the highest shear strength, which can reach 27.56 MPa. Nondestructive residual stress measurement by Raman spectra has been taken in this study, and the joint with concentric circle welding line possessed the minimum stress value of 22.83 MPa, which is consistent with the trend of the shear strength.

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来源期刊

Materials Science and Engineering: A 工程技术-材料科学：综合

CiteScore

11.50

自引率

15.60%

发文量

1811

审稿时长

31 days

期刊介绍： Materials Science and Engineering A provides an international medium for the publication of theoretical and experimental studies related to the load-bearing capacity of materials as influenced by their basic properties, processing history, microstructure and operating environment. Appropriate submissions to Materials Science and Engineering A should include scientific and/or engineering factors which affect the microstructure - strength relationships of materials and report the changes to mechanical behavior.