THE ROLE OF SHEAR INSTABILITY IN AMORPHIZATION OF COLD-ROLLED NITI

被引：45

作者：

KOIKE, J ^{[1
]}

PARKIN, DM ^{[1
]}

NASTASI, M ^{[1
]}

机构：

[1] UNIV CALIF LOS ALAMOS SCI LAB,DIV MAT SCI & TECHNOL,LOS ALAMOS,NM 87545

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1990年 / 62卷 / 04期

关键词：

D O I：

10.1080/09500839008215132

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Alloy sheets of Ni-49-2 at.% Ti were cold rolled at room temperature. The microstructure of a 60% reduced sample showed the formation of amorphous bands within the finely twinned crystalline matrix. Sample fracture was observed for reductions of more than 65%. The fracture surface extended straight and inclined 30° to 50° to the compression direction. Similarities in morphology to the shear bands observed in heavily cold-rolled metals suggest that an amorphous phase forms in the shear band, caused by the mechanical instability against shear stress. © 1991 Taylor & Francis Group, LLC.

引用

页码：257 / 264

页数：8

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