文献类型：期刊文献

英文题名：Study on the Microcutting Mechanism of Pre-textured CrCoNi Medium-Entropy Alloy

作者：Zhang P.; Zhang T.; Zhang S.; Wang X.

机构：[1]College of Mechanical and Power Engineering, Guangdong Ocean University, Zhanjiang, China

年份：2026

卷号：35

期号：10

起止页码：9981

外文期刊名：Journal of Materials Engineering and Performance

收录：Scopus(收录号：2-s2.0-105019689356)

语种：英文

外文关键词：crconi medium-entropy alloy; cutting force; cutting pre-textured surface microtexture; residual stress; temperature

外文摘要：This study employs finite element simulations to investigate the influence of distinct pre-textured surfaces (Line, Wave, Concave, and Convex) on the microcutting behavior of CrCoNi medium-entropy alloy. Cutting depth governs force magnitudes: doubling depth from 12 to 24?μm led to X-direction force increases over 50% while Y-direction forces dropped more than 45% across all textures. Texture geometry critically modulates performance: at 12?μm depth, the Convex texture generated X-direction force approximately 24% higher than the Line type, while Wave and Concave textures showed reductions of 12 and 17%, respectively. Elevated cutting speed significantly intensified thermal loads, increasing temperature over 75% as speed rose from 100 to 300?mm/s, with Convex texture consistently exhibiting the highest temperatures. Residual stress distribution, while predominantly surface compressive, revealed strong texture-parameter coupling: performance rankings reversed under different conditions. For instance, at 24?μm depth, the Wave texture generated peak compressive stress ~ 25% higher than Convex, contrasting the shallower depth trend. Crucially, the Convex-type induced residual stress over 60% higher than Line at 400?mm/s speed. These quantitative insights demonstrate microtexture geometry as a decisive factor for tailoring cutting mechanics and stress states in CrCoNi alloys. ? ASM International 2025.