Influence of cryogenic treatment on the wear characteristics of 100Cr6 bearing steel

被引：11

作者：

Siva, R. Sri ^{[1
]}

Lal, D. Mohan ^{[1
]}

Nair, P. Kesavan ^{[2
]}

Jaswin, M. Arockia ^{[3
]}

机构：

[1] Anna Univ, Dept Mech Engn, Coll Engn Guindy, Madras 600025, Tamil Nadu, India

[2] Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India

[3] Aksheyaa Coll Engn, Dept Mech Engn, Madras 603314, Tamil Nadu, India

来源：

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS | 2014年 / 21卷 / 01期

关键词：

bearing steel; cryogenic treatment; wear resistance; carbides; martensite; RESISTANCE;

D O I：

10.1007/s12613-014-0863-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of reciprocating wear tests were performed on the deep cryogenically treated and conventionally heat-treated samples of 100Cr6 bearing steel to study the wear resistance. The worn surfaces as well as the wear debris were analyzed by scanning electron microscopy. The improvement in wear resistance of the deep cryogenically treated samples ranges from 49% to 52%. This significant improvement in wear resistance can be attributed to finer carbide precipitation in the tempered martensitic matrix and the transformation of retained austenite into martensite. X-ray diffraction analysis shows that the volume fraction of retained austenite in the conventionally heat-treated samples is 14% and that of the deep cryogenically treated samples is only 3%.

引用

页码：46 / 51

页数：6

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