Abstract
In this work, feasibility study has been conducted to produce NiTi intermetallic compound coatings using both composite powder of NiTi (alloyed powder) and physically mixed powder of Ni and Ti by plasma transferred arc welding process. Wear characteristics of the coatings were evaluated by a modified Okoshi-type wear tester. Based on the obtained results, it was possible to produce intermetallic compound coatings on carbon steel from the simply mixed powder as well as composite powder by plasma transferred arc welding process. Hardness value reached up to 800HV in the NiTi coatings, and then the resistance to sliding wear was much improved in comparison with that of Stellite#6 coatings.
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