Creation of submicrocrystalline structure and improvement of functional properties of shape memory alloys of the Ti-Ni-Fe system with the help of ECAP
2007
The structure and mechanical and functional properties of shape memory alloys of the Ti-Ni-Fe system are studied by methods of x-ray diffraction analysis, transmission electron microscopy, and mechanical and thermomechanical testing. The alloys are subjected to high-temperature thermomechanical treatment (HTMT) and equichannel angular pressing (ECAP). The tested objects are thermomechanical clutches from a Ti-Ni-Fe alloy subjected to ECAP and to control treatment (for comparison). The bearing capacity and the low-temperature stability of thermomechanical joints of such clutches were studied.
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