Wear of nano-structured carbide-free bainitic steels under dry rolling-sliding conditions

被引：143

作者：

Leiro, A. ^{[1
]}

Vuorinen, E. ^{[1
]}

Sundin, K. G. ^{[1
]}

Prakash, B. ^{[1
]}

Sourmail, T. ^{[2
]}

Smanio, V. ^{[2
]}

Caballero, F. G. ^{[3
]}

Garcia-Mateo, C. ^{[3
]}

Elvira, Roberto ^{[4
]}

机构：

[1] Lulea Univ Technol, Dept Engn Sci & Math, S-97187 Lulea, Sweden

[2] ASCOMETAL CREAS, F-57301 Hagondange, France

[3] Natl Ctr Met Res CENIM CSIC, E-28040 Madrid, Spain

[4] Gerdau Sidenor ID, E-48970 Basauri, Spain

来源：

WEAR | 2013年 / 298卷

关键词：

Wear; Rolling-sliding; Steel; Bainite; Nanostructured materials; ROLLING/SLIDING WEAR; MICROSTRUCTURE; BEHAVIOR;

D O I：

10.1016/j.wear.2012.11.064

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Specially designed steels with carbon contents from 0.6 to 1.0 wt% were isothermally transformed at very low temperatures, between 220 and 270 degrees C, in order to obtain a nano-structured bainitic microstructure. It is shown that the wear resistance in dry rolling-sliding of these nano-structured steels is significantly superior to that of bainitic steels transformed at higher temperatures with similar hardness values. In addition to the highly refined microstructure, the transformation under strain to martensite (TRIP effect), contributes to the plasticity of the nano-scaled steels, increasing surface hardness during testing, thus reducing the wear rate. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：42 / 47

页数：6

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