Crystal Structure of Martensite and Orientation Relationships During Thermoelastic Martensitic Transformations in Ni-Mn-Based Alloys

Orientation relationships (OR’s) for the B2↔L10 thermoelastic martensitic transformations (TMT’s) in Ni50Mn50 alloy were determined by transmission and scanning electron microscopy methods, which differ from the Bain OR’s previously accepted for them. Electron microscopic studies have shown that L10 martensite has a hierarchic morphology of packets of thin plates of pairwise twinned crystals with flat boundaries of habit close to {110

Microstructure and Thermoelastic Martensitic Transformations in Ni-Mn-Al Based Alloys

The physical properties and structure, thermoelastic martensitic transformations (TMT’s) of Ni50Mn50

Comparative Electron-Microscopic Study of Shape Memory Alloys of Systems Cu-Ni-Al and Ni-Mn-Al

The microstructure of Cu-Ni-Al and Ni-Mn-Al alloys in a wide range of chemical compositions has been studied by transmission and scanning electron microscopy methods, diffraction of electrons and X-rays. The phase composition of all the investigated alloys and the mechanism of the fracture under deformation have been determined.     Keywords: thermoelastic martensitic transformation, brittleness, fractography, longperiod lattice, electron-microscopic studies

Crystal Structure of Martensite and Orientation Relationships During Thermoelastic Martensitic Transformations in Ni-Mn-Based Alloys

Orientation relationships (OR's) for the B2↔L10 thermoelastic martensitic transformations (TMT's) in Ni50Mn50 alloy were determined by transmission and scanning electron microscopy methods, which differ from the Bain OR's previously accepted for them. Electron microscopic studies have shown that L10 martensite has a hierarchic morphology of packets of thin plates of pairwise twinned crystals with flat boundaries of habit close to {110