TY - JOUR
T1 - Back stress evolution and iso-volume fraction lines in a Cr-Ni-Mo-Al-Ti maraging steel in the process of martensitic transformation
AU - Nagayama, K.
AU - Terasaki, T.
AU - Goto, S.
AU - Tanaka, Kikuaki
AU - Antretter, Thomas
AU - Fischer, Franz-Dieter
AU - Cailletaud, Georges
AU - Azzouz, Farida
PY - 2002/7/22
Y1 - 2002/7/22
N2 - The quantitative identification of the back stress evolution is carried out for a Cr-Ni-Mo-Al-Ti maraging steel in the process of martensitic transformation under thermomechanical loading conditions. The evolution depends on the direction of the applied stress: tensile, compressive or shear. The iso-volume fraction lines (the iso-ξ lines) are determined between the transformation-start and -finish lines on the applied stress-temperature plane. The iso-ξ lines are composed of a tensile-branch and a compressive-branch, each of which is parallel to the martensite-start line. The interaction point of the tensile- and compressive-branches of the iso-ξ line shifts to the direction of the back stress evolution. The almost hold stress-independent martensite-finish line, identified in a previous paper (Mater. Sci. Eng. A308 (2001) 25) is proved to be attributed to the back stress evolution.
AB - The quantitative identification of the back stress evolution is carried out for a Cr-Ni-Mo-Al-Ti maraging steel in the process of martensitic transformation under thermomechanical loading conditions. The evolution depends on the direction of the applied stress: tensile, compressive or shear. The iso-volume fraction lines (the iso-ξ lines) are determined between the transformation-start and -finish lines on the applied stress-temperature plane. The iso-ξ lines are composed of a tensile-branch and a compressive-branch, each of which is parallel to the martensite-start line. The interaction point of the tensile- and compressive-branches of the iso-ξ line shifts to the direction of the back stress evolution. The almost hold stress-independent martensite-finish line, identified in a previous paper (Mater. Sci. Eng. A308 (2001) 25) is proved to be attributed to the back stress evolution.
KW - Back stress
KW - Dilatometric loop
KW - Iso-volume fraction lines
KW - Magee effect
KW - Martensitic transformation
KW - TRIP
UR - https://www.scopus.com/pages/publications/0037174636
U2 - 10.1016/S0921-5093(01)01920-7
DO - 10.1016/S0921-5093(01)01920-7
M3 - Article
AN - SCOPUS:0037174636
SN - 0921-5093
VL - 336.2002
SP - 30
EP - 38
JO - Materials science and engineering: A, Structural materials: properties, microstructure and processing
JF - Materials science and engineering: A, Structural materials: properties, microstructure and processing
IS - 1-2
ER -