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Stress Relaxation in AX41 Magnesium Alloy Studied at Elevated Temperatures
Author(s) -
Trojanová Z.,
Lukác P.,
Kainer K. U.
Publication year - 2007
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200700018
Subject(s) - materials science , alloy , dislocation , stress relaxation , relaxation (psychology) , magnesium , stress (linguistics) , volume (thermodynamics) , metallurgy , deformation (meteorology) , activation energy , magnesium alloy , volume fraction , internal stress , composite material , thermodynamics , creep , chemistry , psychology , social psychology , linguistics , philosophy , physics
The article presents the deformation behaviour of a Mg‐Al‐Ca alloy (AX41) deformed at elevated temperatures. Stress relaxation tests were used to determine internal and effective components of the applied stress. Apparent activation volume decreases with the increasing effective stress. The values of the activation volume are in the order of tens b 3 . The main thermally activated process is very probably the dislocation glide in non‐basal planes.