ON THE RELATIONSHIP BETWEEN UNUSUAL MECHANICAL-PROPERTIES AND DEFORMATION SUBSTRUCTURES IN ORDERED NI3AL

被引：8

作者：

BALUC, N ^{[1
]}

BONNEVILLE, J ^{[1
]}

HEMKER, KJ ^{[1
]}

MARTIN, JL ^{[1
]}

SCHAUBLIN, R ^{[1
]}

SPATIG, P ^{[1
]}

机构：

[1] ECOLE POLYTECH FED LAUSANNE,DEPT PHYS,INST GENIE ATOM,CH-1015 LAUSANNE,SWITZERLAND

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1993年 / 164卷 / 1-2期

关键词：

D O I：

10.1016/0921-5093(93)90697-D

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ni3(Al,1%Ta) single crystals have been deformed in compression in the temperature range of the flow stress anomaly (300-770 K). The strain rate sensitivity of the flow stress has been examined by the stress relaxation technique. The core structures of the superdislocations on (111) and (001) planes have been observed using weak beam transmission electron microscopy (TEM). The TEM observations and the strain rate sensitivity tests both define two temperature regimes over the investigated temperature range. The importance of using weak beam image simulations to derive actual antiphase boundary energies from the experimental observations has been emphasized.

引用

页码：379 / 383

页数：5

共 23 条

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