J. Mater. Sci. Technol. ›› 2009, Vol. 25 ›› Issue (05): 645-648.

• Articles • 上一篇    下一篇

The effects of yttria addition on microstructure, mechanical properties, wear resistance and corrosive wear resistance of TiNi alloy

Hojat Ahmadi1;D.Y. Li2;Meisam Nouri3   

  1. 1. Faculty of Biosystems Engineering; University of Tehran; Iran
    2. Department of Chemical and Materials Engineering; University of Alberta; Edmonton; Canada
    3. Department of Materials Engineering; Tarbiat Modares University; Tehran; Iran
  • 收稿日期:2008-08-19 修回日期:2009-03-12 出版日期:2009-09-28 发布日期:2009-10-10
  • 通讯作者: Meisam Nouri

Effects of Yttria Addition on Microstructure, Mechanical Properties, Wear Resistance and Corrosive Wear Resistance of TiNi Alloy

Hojat Ahmadi, D.Y. Li Meisam Nouri   

  1. 1) Faculty of Biosystems Engineering, University of Tehran, Iran
    2) Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Canada
    3) Department of Materials Engineering, Tarbiat Modares University, Tehran, Iran
  • Received:2008-08-19 Revised:2009-03-12 Online:2009-09-28 Published:2009-10-10
  • Contact: Meisam Nouri
  • Supported by:

    Natural Science and Engineering Research Council of Canada (NSERC)
    University of Tehran and Tarbiat Modares University.

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关键词: yttria;TiNi;Mechanical behavior;wear Corrosive;wear Microstructure

Abstract:

TiNi alloy has a high resistance to wear and could be an excellent candidate for various tribological applications. But studies show that oxygen active elements can improve properties of some alloys, markedly. Yttrium is one of the oxygen active elements. In this paper, the effects of yttria addition on properties of TiNi have been studied via micro-indentation, hardness, wear and corrosive wear tests. It is demonstrated that by addition of yttria to 5%, TiNi alloy can own improved mechanical properties and resistance to wear and corrosive wear.

Key words: Yttria, TiNi, Mechanical behavior, Wear corrosive, Wear