Influence of different mechanisms of martensite aging on the features of martensitic transformations. Issue 12 (7th August 2015)

• Record Type: Journal Article
• Authors: Kosogor, Anna; Lyange, Maria; Zadorozhnyy, Mikhail; Miki, Hiroyuki; Takagi, Toshiyuki; L'vov, Victor A.; Khovaylo, Vladimir
• Is Part Of: Physica status solidi. Volume 252:Issue 12(2015:Dec.)
• Page Start: 2758
• Page End: 2761
• Publication Date: 2015-08-07
• Subjects: differential scanning calorimetry -- internal stresses -- martensite aging -- shape memory alloys; Solid state physics -- Periodicals; Solids -- Periodicals; Atomic structure -- Periodicals; 530.41
• DOI: 10.1002/pssb.201552324
• Languages: English
• ISSNs: 0370-1972

Abstract

Abstract : 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.