In situ neutron diffraction study of alpha-gamma Fe-Cr-Ni alloys under tensile deformation

0185333 - UJF-V 20010060 RIV GB eng J - Článek v odborném periodiku
Harjo, S. - Tomota, Y. - Lukáš, Petr - Neov, Dimitar - Vrána, Miroslav - Mikula, Pavol - Ono, M.
In situ neutron diffraction study of alpha-gamma Fe-Cr-Ni alloys under tensile deformation.
Acta Materialia. Roč. 49, č. 13 (2001), s. 2471-2479. ISSN 1359-6454. E-ISSN 1873-2453
Grant CEP: GA ČR GV202/97/K038; GA AV ČR KSK1010104
Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
Impakt faktor: 2.658, rok: 2001

Neutron diffraction experiments were performed in situ upon tensile loading for five Fe-Cr-Ni alloys with different ferrite volume fractions ranging from 0 to 100%. The diffraction profiles were recorded along with the tensile deformation curves during temporary stops in a deformation machine (5 ks each) with the crosshead fixed. One reflection of each phase, (111) of austenite (gamma) and (110) of ferrite (alpha), respectively, were measured simultaneously byusing a position sensitive detector. Evolution of elastic lattice strains and dislocation densities in both constituent phases was evaluated from measured diffraction profiles as a function of external loading. Based on these experimental results, heterogeneous deformation behavior in the alpha-gamma dual-phase alloys is discussed.
Trvalý link: http://hdl.handle.net/11104/0081733