Effects of grain size and protrusion height on the surface integrity generation in the nanogrinding of 6H-SiC

Wu，Zhonghuai1; Zhang，Liangchi2,3,4; Yang，Shengyao1; Wu，Chuhan1

2022-07-01

10.1016/j.triboint.2022.107563

TRIBOLOGY INTERNATIONAL   影响因子和分区

0301-679X

1879-2464

The size and protrusion height of abrasive grains of a grinding wheel are not uniform, which can greatly influence the surface integrity generation of a ground component. The purpose of this paper is to explore such effects on the deformation and material removal mechanisms of 6H-SiC subjected to nanogrinding with the aid of molecular dynamics simulations. It was found that a nanogrinding process can fall into one or more of the following regimes with respect to material removal, i.e., no-wear, adhering, ploughing and cutting regimes, depending on both the depth of grain cut and size of abrasive grains. The plastic deformation in 6H-SiC starts with surface amorphization under the grinding stresses, followed by the activation of partial and perfect dislocations in the shuffle set of the material's basal plane.

Deformation mechanism Material removal regime Molecular dynamics simulation Silicon carbide

SCI ; EI

英语

通讯

Chinese Guangdong Specific Discipline Project[2020ZDZX2006] ; Shenzhen Key Laboratory Project of Cross-scale Manufacturing Mechanics[ZDSYS20200810171201007]

Engineering

Engineering, Mechanical

WOS:000790217100004

ELSEVIER SCI LTD

20221411879808

Grinding (machining) ; Molecular dynamics

Machining Operations:604.2 ; Physical Chemistry:801.4 ; Inorganic Compounds:804.2

ENGINEERING

2-s2.0-85127330829

Scopus

1.Laboratory for Precision and Nano Processing Technologies,School of Mechanical and Manufacturing Engineering,University of New South Wales,2052,Australia
2.Shenzhen Key Laboratory of Cross-scale Manufacturing Mechanics,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
3.SUStech Institute for Manufacturing Innovation,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
4.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Wu，Zhonghuai,Zhang，Liangchi,Yang，Shengyao,et al. Effects of grain size and protrusion height on the surface integrity generation in the nanogrinding of 6H-SiC[J]. TRIBOLOGY INTERNATIONAL,2022,171.

Wu，Zhonghuai,Zhang，Liangchi,Yang，Shengyao,&Wu，Chuhan.(2022).Effects of grain size and protrusion height on the surface integrity generation in the nanogrinding of 6H-SiC.TRIBOLOGY INTERNATIONAL,171.

Wu，Zhonghuai,et al."Effects of grain size and protrusion height on the surface integrity generation in the nanogrinding of 6H-SiC".TRIBOLOGY INTERNATIONAL 171(2022).