Effect of the Fe substitution in Ti-Ni shape memory alloys

Details Effect of the Fe substitution in Ti-Ni shape memory alloys Effect of the Fe substitution in Ti-Ni shape memory alloys

2006-10-12

arxiv.org/abs/cond-mat/0610340v1

Physics

Condensed Matter

Materials Science

14 pages, $ figures

Scientific paper

Shape memory Ti-Ni alloys attracted much attention in the recent years, since they are shape memory, intelligent as well as functional materials. In the present investigation Ti51Ni49 and Ti51Ni45Fe4 alloys were synthesized through radio frequency (RF) induction melting. The alloy was characterized through x-ray diffraction (XRD), scanning electron microscopy (SEM), Mossbauer spectroscopy (MS) and positron annihilation techniques (PAT).The Fe substitution stabilized the TiNi type cubic (a=2.998 A) phase. The surface microstructure and presence of the oxide layer in Ti51Ni45Fe4 alloy have been investigated by SEM. The Positron annihilation measurements indicated a similar bulk electron density in both the as-cast and annealed (1000 0 C for 30 hrs) alloys, typically like that of bulk Ti. Mossbauer spectroscopy studies of as-cast and annealed iron substituted samples showed regions in the samples where nuclear Zeeman splitting of Fe levels occurred and an oxide phase was found to be present in as cast Ti51Ni45Fe4 alloy, while annealed sample indicated the presence of bcc iron phase .

Affiliated with

Also associated with

No associations

Rating

Effect of the Fe substitution in Ti-Ni shape memory alloys does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Effect of the Fe substitution in Ti-Ni shape memory alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effect of the Fe substitution in Ti-Ni shape memory alloys will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-442700