TEMPERATURE AND ORIENTATION DEPENDENCE OF YIELD STRESS AND PLASTICITYIN MOLYBDENUM SINGLE-CRYSTALS OF HIGH-PURITY

Authors
LOTSKO DV MILMAN YV
Citation
Dv. Lotsko et Yv. Milman, TEMPERATURE AND ORIENTATION DEPENDENCE OF YIELD STRESS AND PLASTICITYIN MOLYBDENUM SINGLE-CRYSTALS OF HIGH-PURITY, Journal de physique. IV, 5(C7), 1995, pp. 307-313
Citations number
19
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
5
Issue
C7
Year of publication
1995
Pages
307 - 313
Database
ISI
SICI code
1155-4339(1995)5:C7<307:TAODOY>2.0.ZU;2-8
Abstract
In order to study the influence of purification on the strength and pl asticity of molybdenum single crystals in bending tests, the investiga tion was carried out on crystals of 6 orientations and two purity leve ls (r293K/r4.2K=95000 and 2000 respectively) in the temperature range from 77K to 373K. The dependence of yield stress and ductile-brittle t ransition temperature on crystal orientation and parity was establishe d. The results are discussed in connection with the peculiarities of d islocation slip and multiplication in bending which are illustrated by X-ray epigrams.