采用XRD、DSC和拉伸试验机对热轧和冷轧Ni47Ti44Nb9形状记忆合金板材的织构、相变、拉伸和恢复性能进行研究,以便为提高Ni47Ti44Nb9合金的性能提供参考依据.结果表明:热轧板材中的{001}áuv0-和γ丝织构较强,冷轧板材的织构主要为γ丝;850 ℃退火冷轧板材的Ms点低于热轧板材的,且热滞明显提高;沿850 ℃退火板材轧向(RD),应力诱发马氏体临界应力σM最高,与轧向成45-角方向最低,且冷轧板材的应力诱发马氏体临界应力高于热轧板材的;850℃退火冷轧板沿不同方向可恢复应变基本接近,热轧板材存在差异,沿横向(TD)和45-角方向高于冷轧板材.
参考文献
| [1] | Miyazaki S.;Kitamura K.;Khantachawana A.;Hosoda H.;No VH. .Texture of Ti-Ni rolled thin plates and sputter-deposited thin films[J].International Journal of Plasticity,2000(10/11):1135-1154. |
| [2] | S. H. Chang;S. K. Wu .Textures in cold-rolled and annealed Ti_(50)Ni_(50) shape memory alloy[J].Scripta materialia,2004(7):937-941. |
| [3] | Paula AS;Canejo JHP;Mahesh KK;Silva RJC;Fernandes FMB;Martins RMS;Cardoso AMA;Schell N .Study of the textural evolution in Ti-rich NiTi using synchrotron radiation[J].Nuclear Instruments and Methods in Physics Research, Section B. Beam Interactions with Materials and Atoms,2006(1):206-210. |
| [4] | THAMBURAJA P;ANAND L .Polycrystalline shape-memory marterials:Effect of crystallographic texture[J].Journal of the Mechanics and Physics of Solids,2001,49:709-737. |
| [5] | DALAY S;RAVICHANDRAN G;BHATTACHARYA K .Stress-induced martensitic phase transformation in thin sheets of Nitinol alloys[J].Acta Materialia,2007,55:3593-3600. |
| [6] | GAO S;YI S .Experimental study on the anisotropic behavior of textured NiTi pseudoelastic shape memory alloys[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2003,362:107-111. |
| [7] | H. Zhao;S. C. Rama;G. C. Barber .Experimental study of deep drawability of hot rolled IF steel[J].Journal of Materials Processing Technology,2002(1/3):73-79. |
| [8] | K. GALL;H. SEHITOGLU;Y. I. CHUMLYAKOV .TENSION-COMPRESSION ASYMMETRY OF THE STRESS- STRAIN RESPONSE IN AGED SINGLE CRYSTAL AND POLYCRYSTALLINE NiTi[J].Acta materialia,1999(4):1203-1217. |
| [9] | Sehitoglu H.;Karaman I. .COMPRESSIVE RESPONSE OF NiTi SINGLE CRYSTALS[J].Acta materialia,2000(13):3311-3326. |
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