J Mater Sci Technol ›› 2000, Vol. 16 ›› Issue (05): 534-536.

• Research Articles • Previous Articles     Next Articles

Effects of Ta addition on NiTi shape memory alloys

Jianlu MA, Jiangnan LIU, Zhengpin WANG, Fei XUE, Kuang-Hsi WU, Zhongjie PU   

  1. Dept. of Materials Science & Engineering, Xi'an Institute of Technology, Xi'an 710032, China...
  • Received:1999-05-20 Revised:1999-09-20 Online:2000-09-28 Published:2009-10-10
  • Contact: Jiangnan LIU

Abstract: The effect of Ta addition on the martensitic transformation characteristics and the X-ray visibility on NiTi shape memory alloy have been studied in (Ni51Ti49)(1-x)Ta-x system. It was found that the transformation temperatures of the Ni51Ti49 binary alloy increased drastically by an addition of 0 similar to 4 at. pet Ta, but only slightly when the concentration exceeded 4 at. pet, the addition of Ta greatly decreases the sensitivity of the martensitic transformations to the variation in the Ni-Ti ratio. The addition of Ta to the NiTi binary alloy can improve its X-ray visibility.

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