| Superelasticity of TiPdNi Alloys with and without Rare Earth Ce Addition |
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| 引用本文： | QingchaoTIAN JianshengWU YifengCHENG. Superelasticity of TiPdNi Alloys with and without Rare Earth Ce Addition[J]. 材料科学技术学报, 2003, 19(2): 179-182 |
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| 作者姓名： | QingchaoTIAN JianshengWU YifengCHENG |
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| 作者单位： | KeyLaboratoryoftheMinistryofEducationforHighTemperatureMaterialsandTests,SchoolofMaterialsScienceandEngineering,ShanghaiJiaoTongUniv.,Shanghai200030,China |
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| 摘 要： | Ti50.6Pd30Ni19.4 and Ti51Pd28Ni21 (Ce) alloys have been prepared under various temperatures for long time annealing. Differential scanning calorimetery (DSC), X-ray diffraction (XRD) and tensile test were employed to investigate the phase transformation behavior and superelasticity of the alloys. It has been found that the phase transformation temperature of Ti50.6Pd30Ni19.4 is about 40C higher than that of Ti51Pd28Ni21(Ce), and do not change much with different annealed temperature. Obvious superelasticity is retained in Ti50.6Pd30Ni19.4 alloy annealed at 400C for 18 h, and annealing at higher temperature shows a deterioration of this property. The Ce addition in TisiPd28Ni2i alloy significantly delays recrystallization, increases yied strength and elastic modulus, but the superelasticity is poor.
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| 关 键 词： | TiPdNi合金 弹性 铈 形状记忆合金 |
Superelasticity of TiPdNi Alloys with and without Rare Earth Ce Addition |
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| Qingchao TIAN,Jiansheng WU,Yifeng CHENG. Superelasticity of TiPdNi Alloys with and without Rare Earth Ce Addition[J]. Journal of Materials Science & Technology, 2003, 19(2): 179-182 |
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| Authors: | Qingchao TIAN Jiansheng WU Yifeng CHENG |
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| Affiliation: | Key Laboratory of the Ministry of Education for High Temperature Materials and Tests, School of Materials Science and Engineering, Shanghai Jiao Tong Univ., Shanghai 200030, China |
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| Abstract: | Ti50.6Pd30Ni19.4 and Ti51Pd28Ni21 (Ce) alloys have been prepared under various temperatures for long time annealing. Differential scanning calorimetery (DSC), X-ray diffraction (XRD) and tensile test were employed to investigate the phase transformation behavior and superelasticity of the alloys. It has been found that the phase transformation temperature of Ti50.6Pd30Ni19.4 is about 40C higher than that of Ti51Pd28Ni21(Ce), and do not change much with different annealed temperature. Obvious superelasticity is retained in Ti50.6Pd30Ni19.4 alloy annealed at 400C for 18 h, and annealing at higher temperature shows a deterioration of this property. The Ce addition in TisiPd28Ni2i alloy significantly delays recrystallization, increases yied strength and elastic modulus, but the superelasticity is poor. |
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| Keywords: | TiNi-Pd Shape memory alloy Superelasticity |
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