Influence of particle fracture in the high-stress and low-stress abrasive wear of steel

被引：57

作者：

Dube, NB ^{[1
]}

Hutchings, IM ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

来源：

WEAR | 1999年 / 233卷

关键词：

high-stress abrasion; low-stress abrasion; wear mechanisms; particle shape; particle fracture;

D O I：

10.1016/S0043-1648(99)00297-5

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

High- and low-stress abrasive wear tests have been carried out against steel and rubber wheels, with mild steel specimens and silica sand abrasive particles 125-150 and 425-500 mu m in size. The effects of particle shape and applied load on wear rate, surface damage morphology and the extent of particle fracture were studied. Fracture of the abrasive particles occurred over a wide range of test conditions and had a marked effect on the wear process. The extent of fracture correlated with the magnitude of the wear rate, and when particle fracture was extensive, it masked the influence of initial particle shape. Under most test conditions, the mechanism of material removal involved multiple plastic indentation by abrasive particles rolling through the contact region. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：246 / 256

页数：11

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