THEORY OF SOLITARY PLASTIC WAVES .2. LUDERS BANDS IN SINGLE GLIDE-ORIENTED CRYSTALS

被引:18
作者
HAHNER, P [1 ]
机构
[1] MAX PLANCK INST MET RES, D-70569 STUTTGART, GERMANY
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1994年 / 58卷 / 01期
关键词
D O I
10.1007/BF00331516
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The paper deals with the dislocation dynamics of coherently propagating modes of plastic shear (Luders bands) in single crystals oriented for single slip, in terms of a generalized Fisher-Kolmogorov equation. The role of (1) cross-slip and (2) non-axial stresses as propagation mechnisms is investigated, and the problem of propagation velocity selection is addressed. The phenomenon of slip band clustering which was observed in sufficiently thick tensile specimens is traced back to a propagative instability owing to non-axial stresses.
引用
收藏
页码:49 / 58
页数:10
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