| Transformation behavior and shape memory effect of Ti50-xNi48Fe2Nbx alloys by aging treatment |
| |
| 作者单位： | School of Materials Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China |
| |
| 基金项目： | supported by the National Natural Science Foundation of China (No. 50921003) |
| |
| 摘 要： | The influence of aging treatment on transformation behavior and shape memory of the Ti50-xNi48Fe2Nbx(x=0,0.6,0.8,1.0,and 1.2)alloys was investigated using differential scanning calorimeter(DSC),mechanical drawing machine,and microhardness tester in this paper.It is indicated that the aging treatment has a significant effect on the phase transformation temperatures(Ms,Mf,Mp,As,Af,and Ap)and microhardness of the samples.The phase transformation temperatures are found to decrease initially with the increasing aging temperature from 300 to 500 ℃ and increase with further increase of the aging temperature.The aging treatment at intermediate temperature between 400 and 500 ℃ results in an improved shape memory effect.In addition,the highest microhardness value is also obtained.
|
| 关 键 词： | Ti-Ni-Fe-Nb shape memory alloys martensitic transformation aging treatment phase transformation temperature |
Transformation behavior and shape memory effect of Ti50?x
Ni48Fe2Nb
x
alloys by aging treatment |
| |
| Authors: | Qing Xu Fushun Liu |
| |
| Affiliation: | School of Materials Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China |
| |
| Abstract: | The influence of aging treatment on transformation behavior and shape memory of the Ti 50x Ni48 Fe2 Nbx（x=0,0.6,0.8,1.0,and 1.2） alloys was investigated using differential scanning calorimeter（DSC）,mechanical drawing machine,and microhardness tester in this paper.It is indicated that the aging treatment has a significant effect on the phase transformation temperatures（Ms,Mf,Mp,As,Af,and Ap） and microhardness of the samples.The phase transformation temperatures are found to decrease initially with the increasing aging temperature from 300 to 500 ℃ and increase with further increase of the aging temperature.The aging treatment at intermediate temperature between 400 and 500 ℃ results in an improved shape memory effect.In addition,the highest microhardness value is also obtained. |
| |
| Keywords: | Ti-Ni-Fe-Nb shape memory alloys martensitic transformation aging treatment phase transformation temperature |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
|
