论文部分内容阅读
The influence of aging treatment on transformation behavior and shape memory of the Ti 50_x Ni_(48) Fe_2 Nb_x(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(M_s,M_f,M_p,A_s,A_f,and A_p) 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.
The influence of aging treatment on transformation behavior and shape memory of the Ti 50_x Ni_ (48) Fe_2 Nb_x (x = 0,0.6,0.8,1.0, and 1.2) was investigated using a differential scanning calorimeter (DSC) and microhardness tester in this paper. It is indicated that the aging treatment has a significant effect on the phase transformation temperatures (M_s, M_f, M_p, A_s, A_f, and A_p) and microhardness of the samples. decrease initially with the increasing aging temperature from 300 to 500 ° C and increase with further increase of the aging temperature. aging process at intermediate temperature between 400 and 500 ° C results in an improved shape memory effect.In addition, the highest microhardness value is also obtained.