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...

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Published inJournal of materials science Vol. 30; no. 11; pp. 2956 - 2961
Main Authors Trusov, L. I., Khvostantseva, T. P., Solov'ev, V. A., Mel'nikova, V. A.
Format Journal Article
LanguageEnglish
Published 01.06.1995
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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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-2461
1573-4803
DOI:10.1007/BF00349669