Influence of Laser-Assisted Cutting on the Surface Integrity and Fatigue Life of FeCoCrNiAl0.6 High-Entropy Alloy

IF 3.1 2区材料科学 Q2 ENGINEERING, MECHANICAL

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-01-29 DOI:10.1111/ffe.14576

Ping Zhang, Zhenyong Lin, Tengfei Zhang, Changyin Lan, Xiaomin Jiang

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引用次数: 0

Abstract

This study explores the application of laser-assisted cutting (LAC) in FeCoCrNiAl_0.6 high-entropy alloys to address traditional machining challenges and poor surface quality. It systematically analyzes the effects of laser power, scan speed, and spot diameter on surface integrity and fatigue life. Using Abaqus/FE-SAFE simulations and LAC experiments, differences in surface quality and fatigue cycles under various laser parameters are observed. Results show that increasing the spot radius reduces heat accumulation and center temperature. A 1 mm radius yields a center temperature 5.58 times higher than a 7 mm radius and achieves a residual compressive stress of 412 MPa, which decreases to 198 MPa (51.9% reduction) at 7 mm. Larger laser power increases stress and fatigue life positively, while higher scan speeds reduce stress. Fatigue cycles drop by 82.9% as the spot radius increases from 1 to 7 mm, while 25 W power extends fatigue life 4.26 times compared to 10 W.

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来源期刊

Fatigue & Fracture of Engineering Materials & Structures 工程技术-材料科学：综合

CiteScore

6.30

自引率

18.90%

发文量

256

审稿时长

4 months

期刊介绍： Fatigue & Fracture of Engineering Materials & Structures (FFEMS) encompasses the broad topic of structural integrity which is founded on the mechanics of fatigue and fracture, and is concerned with the reliability and effectiveness of various materials and structural components of any scale or geometry. The editors publish original contributions that will stimulate the intellectual innovation that generates elegant, effective and economic engineering designs. The journal is interdisciplinary and includes papers from scientists and engineers in the fields of materials science, mechanics, physics, chemistry, etc.