GLIDE SEQUENCES OF DEFORMATION IN THE (111) PLANE OF NI3GA SINGLE-CRYSTALS IN THE YIELD STRESS ANOMALY

被引：50

作者：

COURET, A ^{[1
]}

SUN, YQ ^{[1
]}

HIRSCH, PB ^{[1
]}

机构：

[1] UNIV OXFORD,DEPT MAT,OXFORD OX1 3PH,ENGLAND

来源：

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1993年 / 67卷 / 01期

关键词：

D O I：

10.1080/01418619308207141

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ni3Ga single crystals oriented parallel to the [123BAR] direction were deformed in the range of the yield stress anomaly. Successive deformations have also been performed at different temperatures on the same specimen. The substructure of dislocations in the (111) plane has been observed by weak-beam microscopy. The screw dislocations are in the Kear-Wilsdorf configuration and contain many superkinks, the shape of which has been analysed. Simple superkinks and switch-over superkinks have been observed. A statistical analysis of the superkink height has revealed two types of deformation sequence. The locking process corresponding to one of these is thermally activated while that of the other has a geometric cause.

引用

页码：29 / 50

页数：22

共 50 条

[21] TEMPERATURE AND ALLOYAGE INFLUENCE ON YIELD STRENGTH OF NI3AL SINGLE-CRYSTALS
SVETLOV, IL
TOLORAIYA, VN
FIZIKA METALLOV I METALLOVEDENIE, 1975, 40 (02): : 409 - 414
[22] ACTIVATION-ENERGY FOR THE STRENGTH ANOMALY IN NI3(AL,X) SINGLE-CRYSTALS
MIURA, S
MISHIMA, Y
SUZUKI, T
ZEITSCHRIFT FUR METALLKUNDE, 1989, 80 (02): : 112 - 117
[23] EFFECT OF NORMAL STRESSES ON YIELD STRESS OF MOLYBDENUM SINGLE-CRYSTALS AT SLIP ON THE PLANE (BAR211)
DOBROMYSLOV, AV
DOLGIKH, GV
PERETURINA, IA
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1985, 87 (02): : 559 - 563
[24] The effect of room temperature deformation on the yield stress anomaly in Ni-3(AlHf)B
Ezz, SS
Hirsch, PB
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1996, 73 (04): : 1069 - 1082
[25] The effect of room temperature deformation on the yield stress anomaly in Ni3(AlHf)B
Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom
Philos. Mag. A Phys. Condens. Matter Struct. Defects Mech. Prop., 4 (1069-1082):
[26] The effect of room temperature deformation on the yield stress anomaly in Ni3(AlHf)B
Ezz, S. S.
Hirsch, P. B.
Philosophical Magazine A: Physics of Condensed Matter, Defects and Mechanical Properties, 1996, 73 (04):
[27] FRICTION STRESS AND BACK STRESS IN CYCLICALLY DEFORMED NI3GE SINGLE-CRYSTALS
PAK, HR
CHU, J
KATO, M
POPE, DP
MATERIALS SCIENCE AND ENGINEERING, 1988, 100 : 31 - 36
[28] THE GLIDE IN Y3AL5O12 SINGLE-CRYSTALS DURING HIGH-TEMPERATURE DEFORMATION
VOINOVA, NN
BEREZHKOVA, GV
KRISTALLOGRAFIYA, 1984, 29 (06): : 1208 - 1211
[29] THE STRAIN-RATE SENSITIVITY OF THE FLOW-STRESS AND THE MECHANISM OF DEFORMATION OF SINGLE-CRYSTALS OF NI-3(ALHF)B
EZZ, SS
HIRSCH, PB
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1994, 69 (01): : 105 - 127
[30] DEFORMATION-BEHAVIOR IN NI3GE SINGLE-CRYSTALS CONTAINING 76 AT PERCENT-NI
MIURA, S
KOIKE, M
WANG, K
MISHIMA, Y
SUZUKI, T
JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1992, 56 (10) : 1207 - 1213

← 1 2 3 4 5 →