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Influence of different mechanisms of martensite aging on the features of martensitic transformations
Author(s) -
Kosogor Anna,
Lyange Maria,
Zadorozhnyy Mikhail,
Miki Hiroyuki,
Takagi Toshiyuki,
L'vov Victor A.,
Khovaylo Vladimir
Publication year - 2015
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201552324
Subject(s) - martensite , materials science , diffusionless transformation , thermodynamics , magnitude (astronomy) , shape memory alloy , condensed matter physics , metallurgy , microstructure , physics , astronomy
Aging‐induced changes in the features of the calorimetric peak accompanying martensitic transformation were considered in the framework of phenomenological theory. Taking into account two different mechanisms of martensite aging, it was demonstrated that the domination of the internal axial stress contribution narrows the calorimetric peak and elevates its magnitude, while the prevalence of the internal pressure contribution broadens the calorimetric peak and diminishes its magnitude. The developed theoretical approach was applied to modeling of experimentally measured calorimetric peaks of Ni–Mn–Ga alloys.