OPTICAL AND ELECTRON-MICROSCOPY OF NIOBIUM CRYSTALS DEFORMED BELOW ROOM-TEMPERATURE

被引：42

作者：

GARRATTREED, AJ ^{[1
]}

TAYLOR, G ^{[1
]}

机构：

[1] UNIV OXFORD,DEPT MET & MAT SCI,OXFORD,ENGLAND

来源：

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1979年 / 39卷 / 05期

关键词：

D O I：

10.1080/01418617908239294

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pure niobium crystals have been deformed at 77 and 158 K at a strain rate 8 × 10−1 s−1. For crystals with a wide range of Orientations the deformation took place mainly by slip on the anomalous (011) plane. The nature and extent of the slip lines were studied by optical microscopy using Nomarski interference contrast. Thin foils were prepared from many crystals, with sections being taken parallel to a number of planes, and examined in a transmission electron microscope. The dislocation structures observed are described in some detail. A model for anomalous (011) slip is proposed which explains many of its characteristics. © 1979 Taylor & Francis Group, LLC.

引用

页码：597 / 646

页数：50

共 32 条

[1] ANOMALOUS SLIP IN HIGH-PURITY NIOBIUM SINGLE-CRYSTALS DEFORMED AT 77 DEGREES K IN TENSION [J].