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| Study of microstructure and texture of as-cold-rolled Ni47Ti44Nb9 shape memory alloy tube |
| 东北大学 |
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Cite this article:
. Study of microstructure and texture of as-cold-rolled Ni47Ti44Nb9 shape memory alloy tube. Acta Metall Sin, 2008, 44(2): 139-144 .
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Abstract The microstructure, texture and phase transformation of forged bar, hot-extruded tube and cold-rolled tubes at different conditions of Ni47Ti44Nb9 alloy were investigated in terms by optical microscope，DSC and X-ray technique，in order to provide theoretical data for application of cold-rolled tubes in engineering. The results show that B2 phase presents broad fibred shape in the forged rod, and major textures are close to {112}〈111〉and {110}〈111〉; Fibred microstructure in hot-extruded tube becomes fine and fibres have broken, at the same time, {111} orientation of many grains is close to axis direction of tube; Microstructure in cold-rolled tube consists of B2,β -Nb and (Ti,Nb)4Ni2O phases, fibres has heavily broken, which restrains phase transformation during cooling and heating. And {111}<110〉and {112}〈110〉become the major texture components; As the result of the increase of heat treatment temperature, hardness decreases, temperature interval of phase transformation becomes narrow, transformation peak rises, the primary {111}〈110〉and {112}〈110〉textures markedly enhance. Recrystallization grains have grown at 850℃, thermal hysteresis and hardness obviously drop. The primary texture components depart from {111}〈110〉and {112}〈110〉.These are disadvantageous to expect to obtain greater mechanical properties and restoration strain along radial direction of tube.
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Received: 28 May 2007
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[1]Shu Y C,Bhattacharya K.Acta Mater,1998;46:5457
[2]Miyazaki S,Otsuka K,Wayman C M.Acta Metall,1989; 37:1873
[3]Paula A S,Canejo J H P,Mahesh K K,Silva R J C,Braz Fernandes F M,Martins R M S,Fernandes F M B,Car- doso A M A,Schell N.Nucl Instrum Method Phys Res, 2006;246B:206
[4]Paula A S,Canejo J H P G,Schell N,Braz Fernandes F M.Nucl Instrum Method Phys Res,2005;238B:111
[5]Knowles K M.Philos Mag,1982;45A:357
[6]Thamburaja P,Anand L.J Mech Phys Solid,2001;49: 709
[7]Yamauchi K,Nishida M,Itai I,Kitamura K,Chiba A. Mater Trans JIM,1996;37:210
[8]Inoue H,Miwa N,Inakazu N.Acta Mater,1996;44:4825
[9]Mulder J H,Thoma P E,Beyer J.Z Metallkd,1993;84: 501
[10]Li D Y,Wu X F,Ko T.Acta Metall Mater,1990;38:19
[11]Liu Y,Xie Z L,Von Humbeeck J,Delaey L.Acta Mater, 1999;47:645
[12]Miyazaki S,No V H,Kitamura K,Khantachawana A, Hosoda H.Int J Plast,2000;16:1135
[13]Ishida,A,Takei A,Miyazaki S.Thin Solid Film,1993; 228:210
[14]Hou L,Grummon D S.Scr Metall Mater,1995;33:989
[15]Yang G J,Xie L Y,Hu W Y,Deng J,Hao S M.Rare Met Mater Eng,1994;23(3):13 (杨冠军，谢丽英，胡文英，邓炬，郝士明．稀有金属材料与工程，1994；23(3)：13)
[16]Jin W,Cao M Z,Yang R,Hu Z Q.J Mater Sci Technol, 2002;18:538
[17]Piao M,Miyazaki S,Otsuka K.Mater Trans JIM,1992; 33:346
[18]Li Z H,Xiang G Q,Cheng X H.Mater Design,2006;27: 324
[19]Chang S H,Wu S K,Chang G H.Scr Mater,2005;52: 1341
[20]Li C.Metallurgical Theory.Harbin:Harbin Industry Uni- versity Press,1988;260 (李超．金属学原理．哈尔滨工业大学出版社，1988；260)
[21]Toth L S,Jonas J J,Daniel D,Ray R K.Metall Trans, 1990;21A:2985
[22]Raphanel J L,Von Houtte P.Acta Metall,1985;33:1481
[23]Von Schlippenbach U,Emren F,Lucke K.Acta Metall, 1986;34:1289
[24]Zhao H,Rama S C,Barber G C,Wang Z,Wang X.J Mater Process Technol,2002;128:73
[25]Inagaki H.Trans Jpn Inst Met,1987;28:251
[26]Urabe T,Jonas J J.ISIJ Int,1994;34:435
[27]Wang Z D,Guo Y H,Wang G D,Sun D Q,Xue W Y, Liu X H.Chin J Mater Res,2006;20:399 (王昭东，郭艳辉，王国栋，孙大庆，薛文颖，刘相华．材料研究学报，2006；20：399) |
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