Structural refinement of low alloyed steels during severe plastic deformation

被引：204

作者：

Wetscher, F ^{[1
]}

Vorhauer, A

Stock, R

Pippan, R

机构：

[1] Austrian Acad Sci, Erich Schmid Inst Mat Sci, A-8700 Leoben, Austria

[2] CD Lab Local Anal Deformat & Fracture, A-8700 Leoben, Austria

[3] Voestalpine SCHIENEN GMBH, A-8700 Leoben, Austria

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 387卷

关键词：

pearlitic steel; Armco-iron; high pressure torsion;

D O I：

10.1016/j.msea.2004.01.096

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The rail steel S900A and Armco-iron have been deformed by severe plastic deformation, the microstructural evolution and the changes in microhardness have been investigated. In both materials the deformation leads to a decrease in structure size. In the case of the steel an alignment of the lamellae parallel to the shear plane and a decrease of the lamellae spacing is observed. Lamellae which have been originally not favourably aligned are heavily bent and broken into small fragments. This refinement is also reflected in the evolution of the microhardness. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：809 / 816

页数：8

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