TY - GEN
T1 - Comparison of internal and residual stresses measured by strain-dip test and XRD during high temperature deformation of Al-Mg solid solutions
AU - Sato, H.
AU - Enomoto, Y.
AU - Omote, K.
AU - Tanaka, S. I.
PY - 2014
Y1 - 2014
N2 - Creep behavior of solid solution alloys are reasonably explained by concepts of the "internal and effective stress of high temperature deformation". The internal stress is considered to be formed by dislocations, and long range stress filed should also be formed by dislocations in interior of alloys. Thus, residual stresses should be measurable by different methods. In this paper, measurements of the residual stresses in crept solid solutions by 2D-XRD method have been attempted, and the residual stresses are compared with so-called the "internal stress of high temperature deformation" measured by strain-dip stress-transient test. Although, components of stress tensor depend both on the deformation condition and position of specimen, the mean value of the maximum principal stress are smaller than the applied stress and show the same trend of the applied stress dependence with the mean internal stress measured by strain-dip stress-transient test. Importance of further considerations of the origin of so-called internal stresses is suggested.
AB - Creep behavior of solid solution alloys are reasonably explained by concepts of the "internal and effective stress of high temperature deformation". The internal stress is considered to be formed by dislocations, and long range stress filed should also be formed by dislocations in interior of alloys. Thus, residual stresses should be measurable by different methods. In this paper, measurements of the residual stresses in crept solid solutions by 2D-XRD method have been attempted, and the residual stresses are compared with so-called the "internal stress of high temperature deformation" measured by strain-dip stress-transient test. Although, components of stress tensor depend both on the deformation condition and position of specimen, the mean value of the maximum principal stress are smaller than the applied stress and show the same trend of the applied stress dependence with the mean internal stress measured by strain-dip stress-transient test. Importance of further considerations of the origin of so-called internal stresses is suggested.
KW - Creep deformation
KW - Internal and effective stress
KW - Stress transient technique
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U2 - 10.4028/www.scientific.net/MSF.768-769.351
DO - 10.4028/www.scientific.net/MSF.768-769.351
M3 - Conference contribution
AN - SCOPUS:84886025315
SN - 9783037858493
T3 - Materials Science Forum
SP - 351
EP - 357
BT - International Conference on Residual Stresses 9 (ICRS 9)
PB - Trans Tech Publications Ltd
T2 - 9th International Conference on Residual Stresses, ICRS 2012
Y2 - 7 October 2012 through 9 October 2012
ER -