Quasi-in-situ observation for the plastic deformation response to laser shock peening in LDED Ti6Al4V alloy

IF 5.9 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Scripta Materialia Pub Date : 2026-05-01 Epub Date: 2026-02-09 DOI:10.1016/j.scriptamat.2026.117204

Yongxin Zhang , Wei Guo , Junliang Xue , Guoqiang Gao , Ying Zhu , Ming Xu , Yanqiang Liu , Hongqiang Zhang

引用次数: 0

Abstract

The plastic deformation response to laser shock peening (LSP) remains unclear in laser directed energy deposited (LDED) Ti6Al4V alloy, especially involving α variant orientations and boundary structures. This work proposed a novel quasi-in-situ observation method to investigate the plastic deformation behavior. Results showed that basal slip exhibited a high sensitivity to LSP load, and micro shear bands formed along V12 variant. Slip transfer capability was affected by the angle of α/α phase boundaries, and widmanstatten at prior β grain boundary had good deformation coordination. This work revealed the microstructure response to LSP load, providing a theoretical foundation for applying LSP on LDED Ti6Al4V alloy.

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LDED Ti6Al4V合金激光冲击强化塑性变形响应的准原位观察

激光定向能沉积（LDED） Ti6Al4V合金在激光冲击强化（LSP）下的塑性变形响应尚不清楚，特别是涉及α变取向和边界结构时。本文提出了一种新的准原位观测方法来研究塑性变形行为。结果表明：基底滑移对LSP荷载表现出较高的敏感性，基底滑移沿V12变异面形成微剪切带；滑移传递能力受α/α晶界角度的影响，β晶界处的魏氏体具有良好的变形配位性。揭示了LDED Ti6Al4V合金在LSP载荷下的微观结构响应，为LDED Ti6Al4V合金在LDED中的应用提供了理论基础。

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

Scripta Materialia 工程技术-材料科学：综合

CiteScore

11.40

自引率

5.00%

发文量

581

审稿时长

34 days

期刊介绍： Scripta Materialia is a LETTERS journal of Acta Materialia, providing a forum for the rapid publication of short communications on the relationship between the structure and the properties of inorganic materials. The emphasis is on originality rather than incremental research. Short reports on the development of materials with novel or substantially improved properties are also welcomed. Emphasis is on either the functional or mechanical behavior of metals, ceramics and semiconductors at all length scales.