Abstract
Ti51Ni44Si5 alloy exhibits martensitic transformation, in which the transformation peak temperatures A(superscript *) and M(superscript *) of this alloys are higher than those of equiatomic or Ni-rich TiNi alloys, but lower than those of Ti51Ni49 alloy. There are three different phases in 950℃ annealed Ti51Ni44Si5 alloy, including the gray Ti(Ni,Si) matrix, the black Ti5(Ni,Si)3 particles and the gray χ phase. DTA test results show that the annealed Ti51Ni44Si5 alloy has three endothermic peaks in the thermograph, in which the 1168℃ endothermic peak is associated with the reverse eutectic transition of the Ti5(Ni,Si)3 phase accompanied with the local Ti(Ni,Si) matrix molten around the Ti(Ni,Si) grain boundaries, the 1270℃ endothermic peak is associated with the reverse peritectic transformation of χ-phase→Ti(Ni,Si)+Liq. and the one at 1293℃ is the dissolution reaction of Ti(Ni,Si)→Liquid.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
