High-speed steels: increasing wear resistance by adding ceramic particles

被引：21

作者：

Oliveira, MM ^{[1
]}

Bolton, JD

机构：

[1] INETI, IMP, Dept Mat, P-1699 Lisbon, Portugal

[2] Univ Bradford, Dept Mech & Mfg Engn, Bradford BD7 1DP, W Yorkshire, England

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 1999年 / 93卷

关键词：

high-speed steel; composites; titanium carbide; titanium nitride; sintering; wear resistance; microstructure; mechanical properties;

D O I：

10.1016/S0924-0136(99)00180-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The main objective of this work was to develop new wear-resistant materials to be used in components for the automotive industry, and study the effects of the ceramic particles on the hardness, bend strength and fracture toughness of the composites, as compared to those of the base material. The composite materials were produced by adding TiC and TiN particles to AISI M3/2 high-speed steel powder containing copper-phosphide and graphite, in order to obtain composite mixtures sinterable in the temperature range of from 1140 to 1170 degrees C. It was found that the ceramic particles caused a small increase in the macrohardness but a decrease in the bend strength, since they acted as crack initiators. The fracture toughness was not affected significantly by the presence of the ceramic additions. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：15 / 20

页数：6

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