New phase transition peak in NiTi alloy |
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| Affiliation: | 1. State Key Lab of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China;2. Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China;3. Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China;4. Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, Osaka 565-0871, Japan |
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| Abstract: | A new internal friction (IF) peak, accompanied by changes in frequency, electrical resistance and by macroscopical shape change, was observed below the martensitic transformation temperature Ms in quenched near equi-atomic NiTi alloys after an annealing treatment between 673 and 923 K. In differential scanning calorimetry (DSC) measurements a peak was found in the corresponding temperature range. |
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