|
|
|
| Effects of V, Cr on transformation and deformation characteristics of Ti-50.8Ni superelastic alloy |
| Zhi-rong HE;;; |
| 陕西理工学院材料科学与工程学院 |
|
Cite this article:
Zhi-rong HE. Effects of V, Cr on transformation and deformation characteristics of Ti-50.8Ni superelastic alloy. Acta Metall Sin, 2007, 43(12): 1293-1296 .
|
|
|
Abstract Effects of V, Cr and heat treatment on transformation and deformation characteristics of Ti-50.8Ni (atomic fraction, %) superelastic alloy were investigated by differential scanning calorimetry and tensile test. The two-stage reversible transformation ADRDM (A-parent phase, R-R phase, M-martensite) occurred upon heating D cooling in 350-550℃ annealed Ti-50.8Ni alloy. With increasing annealing temperature, the R, M transformation temperature TR, TM of the alloy are first increase then decrease; the M transformation temperature hysteresis ΔTM decreases continuously; the R transformation temperature hysteresis ΔTR is constant. After adding 0.5%V, the transformation type and ΔTR,ΔTM of the alloy do nearly not change, while the TR, TM decrease. After adding 0.3%Cr, the transformation type and ΔTR of the alloy do nearly not change; the ΔTM increases; the TR, TM decrease greatly. The superelastic stress and strain of 400℃ annealed Ti-50.8Ni alloy are 473MPa and 6.4%, respectively. After adding 0.3%Cr, the superelastic stress of the alloy increases, reaches 620 MPa, and the superelastic strain decreases, reaches 3.5%. After adding 0.5%V, the superelastic stress and strain decrease, and reach 388 MPa and 4.9%, respectively. When annealing temperature increases from 400℃ to 500℃, the superelastic stresses of three alloys are all decrease.
|
|
Received: 16 January 2007
|
|
|
[1]Humbeeck J V.Mater Sci Eng,1999;A273-275:134
[2]Vokoun D,Kafka V,Hu C T.Smart Mater Struct,2003; 12:680
[3]Song G,Chaudhry V,Batur C.J Intell Mater Syst Struct, 2003;14:371
[4]Otsuka K,Wayman C M.Shape Memory Materials.Cam- bridge:Cambridge University Press,1998:220
[5]Zhao L C,Cai W,Zheng Y F.Shape Memory Effect and Superelasticity in Alloys.Beijing:National Defence In- dustry Press,2002:5 (赵连城，蔡伟，郑玉峰．合金的形状记忆效应与超弹性．北京：国防工业出版社，2002：5)
[6]Kim J I,Liu Y,Miyazaki S.Acta Mater,2004;52:487
[7]Michutta J,Somsen C,Yawny A,Dlouhy A,Eggeler G. Acta Mater,2006;54:3525
[8]He Z R.Acta Metall Sin,2007;43:353 (贺志荣．金属学报，2007；43：353)
[9]He Z R,Zhang Y H,Wang Y S,Zhou J E.Acta Metall Sin,2004;40:46 (贺志荣，张永宏，王永善，周敬恩．金属学报，2004；40：46)
[10]Saadat S,Salichs J,Noori M,Hou Z,Davoodi H,Suzuki Y,Masuda A.Smart Mater Struct,2002;11:218
[11]He Z R,Zhou J E,Miyazaki S.Acta Metall Sin,2003;39: 617 (贺志荣，周敬恩，宫崎修一．金属学报，2003；39：617)
[12]Kim J I,Miyazaki S.Acta Mater,2005;53:4545
[13]He Z R,Wang F,Zhou J E.Heat Treat Met,2006;31(9): 18 (贺志荣，王芳，周敬恩．金属热处理，2006；31(9)：18)
[14]Chang S H,Wu S K.Scr Mater,2006;55:311
[15]Huang X,Liu Y.Scr Mater,2001;45:153
[16]Vaidynathan R,Bourke M A M,Dunand D C.Metall Mater Trans,2001;32A:777
[17]Hosoda H,Hanada S,Inoue K,Fukui T,Mishima Y, Suzuki T.Intermetallics,1998;6:291
[18]Hosoda H,Wakashima K,Miyazaki S,Inoue K.Mater Res Soc Syrup Proc,2005;842:353 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
