Structural changes of severely plastic deformed rail steel

被引：0
|
作者：
Wetscher, F [1 ]
Stock, R [1 ]
Tian, B [1 ]
Pippan, R [1 ]
机构：
[1] Austrian Acad Sci, Erich Schmid Inst Festkorperphys, Dept Mat, A-8700 Leoben, Austria
来源：
ULTRAFINE GRAINED MATERIALS III | 2004年
关键词：
rail steel; Armco; pearlitic steel; severe plastic deformation; high-pressure torsion;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Severe plastic deformation has been applied to the pearlitic rail steel UIC 900A and Armco-iron. The development of the texture and the peak broadening has been determined. In both cases a characteristic shear texture evolves, the analysis of peak profiles indicates a structural refinement during the accumulation of strain. To assert further the refinement and to investigate the behavior of the cementite lamellae, transmission electron microscope micrographs were taken. A decrease of the lamellae spacing, a heavy fragmentation of the lamellae and increasing missorientation both in the cementite lamellae and the ferrite were observed.
引用
收藏
页码：315 / 320
页数：6
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