Structure and Properties of the NiTi Intermetallic Phases
Synthesized upon Selective Laser Sintering:
II. Structure and Corrosion Behavior

Yu. I. Arutyunov*, L. V. Zhuravel’*, A. V. Pokoev*, and I. V. Shishkovskii**

* Samara State University, ul. Akad. Pavlova 1, Samara, 443011 Russia
** Lebedev Physical Institute, Samara Branch, Russian Academy of Sciences,
ul. Novo-Sadovaya 221, Samara, 443011 Russia

Received April 10, 2001

Abstract—Structure, density, water-absorbing ability, open porosity, and corrosion behavior of bulk specimens
synthesized from Ti–Ni powder blends by the method of selective laser sintering were studied experimentally.
It was shown that the sintered products have a developed porosity (to 40%) with a characteristic structural size
of 2–2.5 mm, a low density (about 3.3–4.1 g/cm³), and high passivation susceptibility in acid and alkaline
media. The potential of using such specimens as implants is discussed.

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