Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Special Topics on “To Solve Problems of Hot Rolling Rolls”
Influence of Microstructures on Abrasive Wear Characteristics of Multi-component White Cast Iron
Kaoru Yamamoto Nobuya SasaguriYasuhiro Matsubara
Author information

2018 Volume 104 Issue 12 Pages 750-757


In this study, multi-component white cast irons containing various the amount and combination of MC, M2C and M7C3 carbides were heat treated by hardening and tempering, and their abrasive wear behavior was investigated using Suga type abrasion wear tester.

The wear rate (Rw) decreased greatly with an increase in macro-hardness and slightly with volume fraction of retained austenite (Vγ) regardless of the kinds of carbide or heat treatment conditions. In order to clarify the effect of carbide types on the abrasive wear resistance, the subzero treatment was conducted to get the specimens with very low Vγ and adjusted to almost the same hardness. It was found that in spite of a decrease in total amount of carbides, the specimen containing only MC carbide showed almost same Rw as the basic alloy specimen in which MC and M2C carbides coexisted. On the other hand, Rw increased as the M2C carbide amount increased from that of basic alloy specimen.

Content from these authors
© 2018 The Iron and Steel Institute of Japan

This article is licensed under a Creative Commons [Attribution-NonCommercial-NoDerivatives 4.0 International] license.
Previous article Next article