文献类型：期刊文献

英文题名：Investigation on micro-cutting and chip formation mechanism of CoCrFeNiAl_X series high-entropy alloy

作者：Zhang, Ping[1,2];Wang, Shunxiang[1];Lin, Zhenyong[1];Yue, Xiujie[2,3];Zhou, Hanping[1];Zhang, Songting[1]

机构：[1]Guangdong Ocean Univ, Coll Mech & Power Engn, Zhanjiang, Peoples R China;[2]Qingdao Huanghai Univ, Coll Intelligent Mfg, Qingdao 266520, Peoples R China;[3]Qingdao Univ Technol, Coll Intelligent Mfg, Qingdao 266520, Peoples R China

年份：2024

卷号：46

期号：3

外文期刊名：JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001160768800002)、、EI(收录号：20240815588273)、Scopus(收录号：2-s2.0-85185219555)、WOS

基金：No Statement Available

语种：英文

外文关键词：High-entropy alloy; Micro-cutting; Chip formation mechanism; Tool parameters; Cutting force

外文摘要：This study delves into the critical chip formation mechanisms of CoCrFeNiAlX series high-entropy alloys, examining the impact of tool parameters, cutting speed, and aluminum (Al) element content. The investigation focuses on three alloy compositions: CoCrFeNi (referred to as Al-0), CoCrFeNiAl0.6 (referred to as Al-0.6), and CoCrFeNiAl (referred to as Al-1). Employing ABAQUS, the research explores the effects of tool rake and rear angles, cutting edge radius, cutting speed, and Al content on complete chip formation, cutting force, cutting temperature, and Mises stress of CoCrFeNiAlX high-entropy alloy. The findings reveal that a tool rake angle of 2 degrees allows for a minimum cutting depth of 5 mu m, while rake angles of 6 degrees and 10 degrees necessitate a minimum cutting depth of at least 6 mu m for successful cutting. The tool's rear angle exhibits a negative correlation with the minimum ideal cutting thickness of the workpiece. For instance, with a tool rear angle of 2 degrees, the minimum ideal cutting thickness is 8 mu m, 1.35 times that of rake angles of 6 degrees and 10 degrees. Moreover, cutting force demonstrates a positive correlation with the cutting edge radius. Specifically, when the tool's rake and rear angles are both 6 degrees, and the cutting edge radius is 3 mu m, the cutting temperature rises with increasing cutting speed, reaching up to 71.2 degrees C. This indicates that high-speed cutting fosters the formation of complete chips. Comparative analysis of the cutting results for Al-0, Al-0.6, and Al-1 using the same tool reveals that, with the augmentation of aluminum content, the minimum ideal cutting thickness increases under all tool angles except when the rear angle is 2 degrees. Furthermore, when the cutting edge radius is 1 mu m, Al-0.6 attains a minimum ideal cutting thickness of 4 mu m.