Low temperature stress relaxation of nanocrystalline nickel

Stress relaxation in nanocrystalline nickel within the temperature range 523-673K in a uniaxial compression regime is studied in the present investigation. The results obtained for coarser grained nickel are given for comparison. An average strain rate of nanocrystalline nickel within the investigat...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science 1995-06, Vol.30 (11), p.2956-2961
Main Authors: Trusov, L. I., Khvostantseva, T. P., Solov'ev, V. A., Mel'nikova, V. A.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Stress relaxation in nanocrystalline nickel within the temperature range 523-673K in a uniaxial compression regime is studied in the present investigation. The results obtained for coarser grained nickel are given for comparison. An average strain rate of nanocrystalline nickel within the investigated range of temperatures is 1.75 x 10 exp -5 -3.03 x 10 exp -5 s exp -1 . The presence of two types of stress relaxation dependencies are shown. The most likely strain mechanism is grain boundary sliding controlled by grain boundary diffusion for temperatures between 623 and 673K.
ISSN:0022-2461
1573-4803
DOI:10.1007/BF00349669