Molecular Dynamics Simulation to Investigate the Rake Angle Effects on Nanometric Cutting of Single Crystal Ni3Al
Feng, Rui-cheng1,2; Qi, Yong-nian1,2; Zhu, Zong-xiao2; Song, Wen-yuan1,2; Li, Hai-yan2; Wang, Mao-mao1,2; Rui, Zhi-yuan1,2; Gu, Feng-shou3
2020-04
发表期刊INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING
ISSN2234-7593
卷号21期号:4页码:711-724
摘要

Molecular dynamics, an effective method to gain an insight into nanometric behaviour of materials, was employed to study the nano-cutting behaviour of single crystal Ni3Al in nanometric scale. In this paper, comparisons were made for compressive/tensile stress, subsurface damage and surface roughness with three rake angles of a diamond tool. Subsurface damage was partitioned by region and studied with work hardening in detail. A model for precise characterization of surface roughness was established with consideration of local surface fluctuation. Simulation results showed that the chip thickness increased as rake angle changed from negative to positive, and the boundary formed between tensile and compressive stress was in consistent with the glide direction of stacking fault. Subsurface damage decreased as the increase of rake angle, and regular glide planes of stacking faults were found in front of the cutting tool. Further, the pinned dissociated 1/2 < 110 > superpartial dislocation with anti-phase boundary was demonstrated. The model was tested and characterized by implanted pits on perfect surface. Results showed that surface roughness can be well characterized, and an evident discrepancy was observed among three rake angles, especially for 30 degrees rake angle, which showed an distinct smooth surface compared with the others.

关键词Molecular dynamics Local stress Anti-phase boundary Surface roughness Ni3Al
DOI10.1007/s12541-019-00249-z
收录类别SCI ; SCIE
语种英语
WOS研究方向Engineering
WOS类目Engineering, Manufacturing ; Engineering, Mechanical
WOS记录号WOS:000522450300013
出版者KOREAN SOC PRECISION ENG
EI入藏号20210409822609
来源库WOS
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/76497
专题机电工程学院
兰州理工大学
通讯作者Qi, Yong-nian; Li, Hai-yan
作者单位1.Lanzhou Univ Technol, Engn Res Ctr Nonferrous Met New Equipment, Minist Educ, Lanzhou 730050, Peoples R China;
2.Lanzhou Univ Technol, Sch Mech & Electron Engn, Lanzhou 730050, Peoples R China;
3.Univ Huddersfield, Ctr Efficiency & Performance Engn, Huddersfield HD1 3DH, W Yorkshire, England
第一作者单位兰州理工大学
通讯作者单位兰州理工大学
第一作者的第一单位兰州理工大学
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GB/T 7714
Feng, Rui-cheng,Qi, Yong-nian,Zhu, Zong-xiao,et al. Molecular Dynamics Simulation to Investigate the Rake Angle Effects on Nanometric Cutting of Single Crystal Ni3Al[J]. INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING,2020,21(4):711-724.
APA Feng, Rui-cheng.,Qi, Yong-nian.,Zhu, Zong-xiao.,Song, Wen-yuan.,Li, Hai-yan.,...&Gu, Feng-shou.(2020).Molecular Dynamics Simulation to Investigate the Rake Angle Effects on Nanometric Cutting of Single Crystal Ni3Al.INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING,21(4),711-724.
MLA Feng, Rui-cheng,et al."Molecular Dynamics Simulation to Investigate the Rake Angle Effects on Nanometric Cutting of Single Crystal Ni3Al".INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING 21.4(2020):711-724.
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