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2013 | 123 | 2 | 248-249
Article title

An Investigation on TiNi Intermetallic Produced by Electric Current Activated Sintering

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EN
Abstracts
EN
In this study, TiNi intermetallic compounds were produced by electric current activated sintering in open air under an uniaxial pressure of 200 MPa at a maximum of 1200 A for 10 min using Ni powder (99.8% purity, 4-7 μm), Ti powder (99.5% purity, less than 44 μm). The elemental powders were mixed in the stoichiometric ratio corresponding to the TiNi intermetallic at molar proportion of 1:1. Scanning electron microscopy and X-ray diffraction analysis were used to characterize produced samples. X-ray diffraction studies revealed that the dominant phases are TiNi, NiTi_2, Ni_3Ti, TiO, and Ni_2Ti_3. Scanning electron microscopy examinations showed a dense microstructure with very low amount of porosity. The relative density of test materials measured according to Archimedes' principle was 96.8%, and the microhardness of materials was about 773.6 ± 123 HV_{0.05}.
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EN
Contributors
author
  • Technology Faculty, Department of Metallurgy and Materials Engineering, Sakarya University, Esentepe Campus, 54187 Sakarya, Turkey
author
  • Technology Faculty, Department of Metallurgy and Materials Engineering, Sakarya University, Esentepe Campus, 54187 Sakarya, Turkey
References
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Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv123n2029kz
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