J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (05): 416-418.

• Research Articles • Previous Articles     Next Articles

Martensitic Transformation of TiNi Shape Memory Alloy Fiber Reinforced Ni Matrix Composites

Lishan CUI, Yan LI, Yanjun ZHENG, Huibin XU   

  1. Department of Materials Science and Engineering, University of Petroleum, Beijing 102249, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-09-28 Published:2009-10-10
  • Contact: Lishan CUI

Abstract: In this paper, a TiNi shape memory alloy fiber Ni matrix composite was fabricated by an electroplating method using TiNi alloy as the cathode and Ni as the anode. The constrained martensitic transformation behaviors of the TiNi alloy were studied by differential scanning calorimeter (DSC), and the results showed that two endothermic peaks appear on the DSC heating curves and the reverse transformation temperatures increase with increasing prestrain levels. Moreover, comparing to the free transformation, the temperature window of the constrained reverse transformation is widely expanded due to the influence of recovery stress.

Key words: Shape memory alloys, Martensitic transformation, Composite