Residual Stress Transition During High-Velocity Particle Impact on Rough Surfaces

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

Tribology Letters Pub Date : 2026-06-22 DOI:10.1007/s11249-026-02162-9

Mingjie Liu, He Zhu, Yanwei Liu, Jianqiao Hu

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引用次数: 0

Abstract

High-velocity particle impact is a fundamental process in contact mechanics, underlying techniques such as cold spray and surface peening. This study investigates particle impact on randomly rough surfaces using finite element simulation. Results show that surface roughness intensifies plastic deformation, reduces bonding threshold, and increases substrate residual stress by up to 21%. A crucial mechanistic transition is identified that particle residual stress shifts from hardening-dominated to thermal-softening-dominated regimes as velocity increases, with a critical dimensionless velocity around 0.30. Through dimensional analysis, a theoretical power-law model is developed and validated against simulations, describing the velocity dependence as \({\sigma}_{r}\propto {V}_{i}^{1}\) below and \({\sigma}_{r}\propto {V}_{i}^{-1}\) above the critical velocity. This model provides a practical tool for residual stress control in tribological applications involving high-velocity contact and interfacial adhesion.

Graphical abstract

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高速颗粒撞击粗糙表面时的残余应力转变

高速粒子碰撞是接触力学的基本过程，是冷喷涂和表面强化等技术的基础。本文采用有限元模拟方法研究了颗粒对随机粗糙表面的冲击。结果表明，表面粗糙度加剧了塑性变形，降低了结合阈值，并使基体残余应力增加了21倍%. A crucial mechanistic transition is identified that particle residual stress shifts from hardening-dominated to thermal-softening-dominated regimes as velocity increases, with a critical dimensionless velocity around 0.30. Through dimensional analysis, a theoretical power-law model is developed and validated against simulations, describing the velocity dependence as \({\sigma}_{r}\propto {V}_{i}^{1}\) below and \({\sigma}_{r}\propto {V}_{i}^{-1}\) above the critical velocity. This model provides a practical tool for residual stress control in tribological applications involving high-velocity contact and interfacial adhesion.Graphical abstract

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来源期刊

Tribology Letters 工程技术-工程：化工

CiteScore

5.30

自引率

9.40%

发文量

116

审稿时长

2.5 months

期刊介绍： Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.