Grain size dependence of wear resistance of polycrystalline diamond compact

被引：18
作者：
Dai, Wenhao [1 ,2 ]
Zhang, Shuai [1 ,2 ]
Tu, Jianbo [1 ,2 ]
Wang, Xueqi [1 ,2 ]
Zhao, Chuang [1 ,2 ]
Liu, Baochang [1 ,2 ,3 ]
机构：
[1] Jilin Univ, Coll Construct Engn, Changchun 130026, Peoples R China
[2] Jilin Univ, Key Lab Drilling & Exploitat Technol Complex Condi, Minist Nat Resources, Changchun 130026, Peoples R China
[3] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Jilin, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2023年 / 49卷 / 23期
关键词：
Polycrystalline diamond; Mechanical properties; Microstructure; Wear resistance; MECHANICAL-PROPERTIES; FRACTURE-TOUGHNESS; RESIDUAL-STRESS; HIGH-PRESSURE; MICROSTRUCTURE; BEHAVIOR; METALS; CARBON;
D O I：
10.1016/j.ceramint.2023.09.064
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Polycrystalline diamond compact (PDC) with different grain sizes were fabricated and the multi-physical behaviors, including mechanical-, thermal-, and magnetic performances, and the microscopic features were examined to study the grain size dependence of wear behavior while cutting dense granite. The results showed that the coarse grade PDC had higher impact resistance and fracture toughness. However, the fine grade PDC had higher cobalt content, hardness and thermal resistance. Among these properties, the wear resistance changed the same way as thermal expansion properties proving the strong correlation. Moreover, the crack network caused by thermal mismatch, and the peeling/fracture of metallic phases and diamond promoted fracture wear and played the critical roles in the wear of coarse grade PDC.
引用
收藏
页码：37396 / 37406
页数：11
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