The microstructure of annealed at 1200°C and water quenched Co_35+x-Ni_40-x-Al₂₅ (x = 0, 2.5, 5.0) ferromagnetic shape memory alloys has been investigated by optical (OM) and analytical transmission electron microscopy (TEM). The deformed microstructure consisted of elongated grains of martensite and γ phases as observed using polarized OM and Nomarski contrast. The annealing twins were found frequently in the γ phase. The volume fraction of γ phase has been determined using quantitative image analysis method. TEM observations raveled frequent stacking faults within martensite and its teragonality as well as dissociated dislocations within γ phase. The crystallographic relationship between martensite and γ grains has been determined basing on electron diffraction patterns. The elemental mapping technique and chemical point analyses allowed to determine the composition of particulate phases. The measured Al/Co ratio in the β phase of quenched alloys has been shown to be related to M_s temperature.

1. Microstructure and magnetic properties of two phase b+g ferromagnetic Co-Ni-Al alloys
2. Reconstruction of lattice structure of ion-implanted near-surface regions of HgCdTe epitaxial layers
3. HRTEM and TEM studies of amorphous structures in ZrNiTiCu base alloys obtained by rapid solidification or ball milling
4. Powder metallurgy technology of NiTi shape memory alloy
5. Deformation of Ni-Mn-Ga martensite under the conditions of ultrasonic resonance
6. Effect of magnetic field on the TA_{2} phonon branch softening in Ni_{2}MnGa
7. Phase and structural transformations in Ti-Ta alloys in wide region of compositions
8. Nanocrystalline materials manufactured by torsion under pressure of 2 GPa
9. Search for New Metallic Glass Compositions in NiZrTi Base Alloys Near Multicomponent Eutectic Positions
10. Properties of martensitic Ni-Mn-Ga thin films deposited on Mo foils
11. Stress-temperature relationship in a Ni-Mn-Ga single crystal
12. Structure and mechanical properties of ball milled TiAl-Cr intermetallics consolidated by hot pressing and pulse plasma sintering
13. Nanocrystalline TiAl-V intermetallics hot pressed from mechanically alloyed powders
14. Nanocrystallization and mechanical properties of the amorphous Ni-Zr-Ti -Al-Cu -Si ribbons.