龚永平,张德闯,高晓,林建国

• 1:湘潭大学材料科学与工程学院

摘要(Abstract)：

研究了不同退火温度对Ti-7.5Nb-4Mo-2Sn形状记忆合金的显微组织和超弹性能影响律,以及拉伸条件下合金的变形特性。利用X射线衍射仪、透射电镜、拉伸试验机等分别对600℃、700℃、800℃退火处理得到合金试样的显微组织和超弹性能进行表征测试,并通过数字图像相关法研究在拉伸条件下的变形特性。结果表明,Ti-7.5Nb-4Mo-2Sn合金中α→β相变温度在700℃与800℃之间,α相含量随着退火温度的升高而逐渐减少,800℃时α相含量为零。700℃和800℃处理后的合在金室温下表现出超弹性能。由于α相颗粒增强的作用700℃处理后得到的合金表现出更加优异的超弹性能。

关键词(KeyWords)： β钛基形状记忆合金;退火处理;显微组织;超弹性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(11402220);; 湖南省教育厅优秀青年项目(14B176)

作者(Author): 龚永平,张德闯,高晓,林建国

DOI: 10.13289/j.issn.1009-6264.2016.09.004

参考文献(References)：

• [1]葛顺楠,宁北方,宁劲,等.镍致癌机制的研究进展[J].肿瘤学杂志,2007,13(1):75-79.GE Shun-nan,NING Bei-fang,NING Jin,et al.The research progress of nickel carcinogenic mechanism[J].Journal of Chinese Oncology,2007,13(1):75-79.
• [2]Hench L L,Polak J M.Third-generation biomedical materials[J].Science,2002,295(5557):1014-1020.
• [3]Niinomi M.Recent metallic materials for biomedical applications[J].Metallurgical and Materials Transactions A,2002,33(3):477-486.
• [4]贺志荣,王芳,周敬恩.Ti Ni合金的形状记忆效应及其工程应用研究进展[J].材料热处理学报,2005,26(5):21-27.HE Zhi-rong,WANG Fang,ZHOU Jing-en.The Ti Ni alloy research progress of engineering application and its shape memory effect[J].Transactions of Materials and Heat Treatment,2005,26(5):21-27.
• [5]Niinomi M.Effect of microstructure on fracture characteristics of Ti-6Al-2Sn-2Zr-2Mo-2Cr-Si[J].Metallurgical and Materials Transactions A,2001,32(11):2795-2804.
• [6]Kathy W.The use of titanium for medical application in USA[J].Materials Science and Engineering A,1996,213:134-1371.
• [7]Hench L L.Biomaterials:a forecast for the future[J].Biomaterials,2003,19:1419-1423.
• [8]于振涛,周廉,王克光.生物医用型P型钛合金的设计与开发[J].稀有金属快报,2004,23(1):5-10.YU Zhen-tao,ZHOU Lian,WANG Ke-guang.Design and development of biomedical type P-type titanium alloys[J].Rare Letters,2004,23(1):5-10.
• [9]Damien C J,Parsons J R.Bone graft substitutes:a review of current technology and applications[J].Appl Biomater,1992,2:187-208.
• [10]Otsuka K,Sakamoto H,Shimizu K.Successive stress-induced martensitic transformations and associated transformation pseudoelasticity in Cu-Al-Ni alloys[J].Acta Metallurgica,1979,27(4):585-601.
• [11]王心美.Ni Ti形状记忆合金疲劳断裂性能研究[D].西安:西北工业大学,2005.WANG Xin-mei.Fatigue fracture properties of Ni Ti shape memory alloy[D].Xi'an:Northwestern Polytechnical University,2005.
• [12]Otsuka K,Wayman C M.Shape Memory Materials[M].Cambridge University Press,1999.
• [13]于思荣.生物医学钛合金的研究现状及发展趋势[J].新材料产业,2001,2(2):23-25.YU Si-rong.Research status and development trend of biomedical titanium alloys[J].New Material Industry,2001,2(2):23-25.
• [14]王立强.Ti Nb Zr Taβ钛合金冷变形特点及超弹性机理研究[D].上海:上海交通大学,2009.WANG Li-qiang.Ti Nb Zr Taβtitanium alloy cold deformation and its super-elastic mechanism[D].Shanghai:Shanghai Jiaotong University,2009.
• [15]张芸,罗致春,张德闯,等.几何缺陷对Ti-7.5Nb-4Mo-2.5Sn形状记忆合金超弹性能的影响[J].中国有色金属学报,2014,24(7):1792-1798.ZHANG Yun,LUO Zhi-chun,ZHANG Deng-chuang,et al.Effect of geometric defects on superelasticity of Ti-7.5Nb-4Mo-2.5Sn shape memory alloy[J].The Chinese Journal of Nonferrous Metals,2014,24(7):1792-1798.
• [16]毛咏发,林建国,檀朝桂,等.Zr基非晶合金在过冷液相区的拉伸变形行为[J].材料热处理学报,2014,35(1):77-82.MAO Yong-fa,LIN Jian-guo,TAN Chao-gui,et al.Deformation behavior of Zr-based bulk metallic glass in supercooled liquid region[J].Transactions of Materials and Heat Treatment,2014,35(1):77-82.
• [17]Zhang D C,Mao Y F,Li Y L,et al.Effect of ternary alloying elements on microstructure and superelastictity of Ti-Nb alloys[J].Materials Science and Engineering A,2013,559:706-710.

文章评论(Comment)：