TY - GEN
T1 - Temperature dependence of the flow stress of body-centered-cubic metals
AU - Konstantinovic, Milan
PY - 2012
Y1 - 2012
N2 - By comparing the properties of dislocation-related relaxation processes in internal friction spectra and the tensile data of various iron alloys, we found that the temperature dependence of the flow stress is governed by the total distribution of the activation energies of dislocation motion. The derived model explains the origin of an anomalous temperature dependence of the flow stress in thermally aged Fe-1%Cu alloys, and Fe-x%Cr alloys as a function of Cr concentration, as well as the non-uniform temperature dependence of the flow stress in pure Fe.
AB - By comparing the properties of dislocation-related relaxation processes in internal friction spectra and the tensile data of various iron alloys, we found that the temperature dependence of the flow stress is governed by the total distribution of the activation energies of dislocation motion. The derived model explains the origin of an anomalous temperature dependence of the flow stress in thermally aged Fe-1%Cu alloys, and Fe-x%Cr alloys as a function of Cr concentration, as well as the non-uniform temperature dependence of the flow stress in pure Fe.
KW - Bcc metals
KW - Flow stress
KW - Internal friction coefficient
UR - http://www.scopus.com/inward/record.url?scp=84856184569&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/SSP.184.137
DO - 10.4028/www.scientific.net/SSP.184.137
M3 - In-proceedings paper
AN - SCOPUS:84856184569
SN - 9783037853382
T3 - Solid State Phenomena
SP - 137
EP - 142
BT - Internal friction and mechanical spectroscopy
PB - Trans Tech Publications Ltd
T2 - 16th International Conference on Internal Friction and Mechanical Spectroscopy, ICIFMS-16
Y2 - 3 July 2011 through 8 July 2011
ER -