TY - JOUR
T1 - Wear evolution of microstructured diamond grains in WC/Co cemented carbide single grain scratching
AU - Zhang, Zhen
AU - Zhang, Quanli
AU - Wang, Wentao
AU - Yu, Nan
AU - Ding, Wenfeng
AU - Xu, Jiuhua
N1 - Funding Information:
The work was supported by the National Natural Science Foundation of China (NSFC) (Project No.: 51805257), the National Natural Science Foundation of China for Creative Research Groups (Project No.: 51921003), the Natural Science Foundation of Jiangsu Province (Project No.: BK20201298 ), the China Postdoctoral Science Foundation (Project No.: 2019TQ0151 ), and the Postgraduate Research & Practice Innovation Program of Jiangsu Province (Project No.: KYCX19_0162 ).
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/1/15
Y1 - 2022/1/15
N2 - In this study, the wear evolution and wear mechanism of microstructured diamond abrasive grains in scratching WC/Co were investigated. Surface microstructures with 0° groove arrays, 45° groove arrays, square arrays, rhombus arrays, and wave groove arrays were initially fabricated using a nanosecond pulsed laser without obvious surface damage. The grain wear evolution process, characteristics of the scratching surface, and impact on the specific scratching force were then analysed. The results show that surface microstructuring affects the life extension of the diamond grains, the effectiveness of which can be sorted in the following descending order: square arrays, rhombus arrays, 45° groove arrays, 0° groove arrays, no microstructure, and wave groove arrays. Finally, the wear evolution process of the microstructured diamond grains was identified, which mainly covers adhesion→cracking→micro-fracture of the unit-abrasives→macro-fracture of the unit-abrasives→macro-fracture of the grain→pull-out, and the wear mechanism of the diamond grains was also explored.
AB - In this study, the wear evolution and wear mechanism of microstructured diamond abrasive grains in scratching WC/Co were investigated. Surface microstructures with 0° groove arrays, 45° groove arrays, square arrays, rhombus arrays, and wave groove arrays were initially fabricated using a nanosecond pulsed laser without obvious surface damage. The grain wear evolution process, characteristics of the scratching surface, and impact on the specific scratching force were then analysed. The results show that surface microstructuring affects the life extension of the diamond grains, the effectiveness of which can be sorted in the following descending order: square arrays, rhombus arrays, 45° groove arrays, 0° groove arrays, no microstructure, and wave groove arrays. Finally, the wear evolution process of the microstructured diamond grains was identified, which mainly covers adhesion→cracking→micro-fracture of the unit-abrasives→macro-fracture of the unit-abrasives→macro-fracture of the grain→pull-out, and the wear mechanism of the diamond grains was also explored.
KW - Microstructured diamond grains
KW - Specific scratching force
KW - WC/Co
KW - Wear evolution
UR - http://www.scopus.com/inward/record.url?scp=85117708303&partnerID=8YFLogxK
U2 - 10.1016/j.wear.2021.204142
DO - 10.1016/j.wear.2021.204142
M3 - Article
AN - SCOPUS:85117708303
SN - 0043-1648
VL - 488-489
JO - Wear
JF - Wear
M1 - 204142
ER -