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Structure, mechanical properties and martensitic transformations of porous material based on TiNi with reactive additive
Pakholkina S.A.
1, Anikeev S.G.
1, Artyukhova N.V.
1, Kaftaranova M.I.
1, Bolshevich E.A.
1, Ryzhakova V. G.1
1Tomsk State University, Tomsk, Russia
Email: pakholkina200362@gmail.com, anikeev_sergey@mail.ru, artyukhova_nad@mail.ru, KaftaranovaMI@gmail.com, elena17051305.ya.ru@gmail.com, ryzhakova.v@yandex.ru
It is shown that the addition of a reaction additive of Ti and Ni powders in different proportions to the TiNi powder reduces the sintering temperatures and allows maintaining the regular porous structure of the TiNi-based material. With an increase in the proportion of the reaction additive, the sintering quality improves: the average pore size and pore bridges and the tensile strength increase. By X-ray diffraction analysis It is shown that the following intermetallic compounds are present in the material: phases TiNi (B2 and B19'), Ti2Ni and TiNi3. Keywords: TiNi, porous, reactive additive, structure, martensitic transformations.
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