HIGH-TEMPERATURE DISLOCATION CONFIGURATIONS AND THEIR EFFECT ON DUCTILIZATION OF NI-AL SINGLE-CRYSTALS

Authors
MORRIS MA PEREZ JF DAROLIA R
Citation
Ma. Morris et al., HIGH-TEMPERATURE DISLOCATION CONFIGURATIONS AND THEIR EFFECT ON DUCTILIZATION OF NI-AL SINGLE-CRYSTALS, Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties, 69(3), 1994, pp. 507-526
Citations number
16
Categorie Soggetti
Physics, Applied
Journal title
Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties → ACNP
ISSN journal
01418610
Volume
69
Issue
3
Year of publication
1994
Pages
507 - 526
Database
ISI
SICI code
0141-8610(1994)69:3<507:HDCATE>2.0.ZU;2-L
Abstract
The effect of high-temperature pre-deformation on the ductility-achiev ed during room-temperature bending has been compared between [100]-ori ented single crystals of Ni-Al and those containing iron and hafnium a dditions. Detailed dislocation analysis carried out on the high-temper ature-pre-deformed samples and after hardness indentation at room temp erature has been carried out. The improved ductility obtained from the pre-deformed samples of the binary and iron-containing alloys has bee n related to the increased production of [100] mobile dislocations dur ing the high-temperature deformation process in these alloys.