张梦婷,刘敏,刘立斌,邓春明

• 1:中南大学材料科学与工程学院
• 2:广州有色金属研究院

摘要(Abstract)：

以Ni包覆Ti粉末为原始粉末,采用低温超音速火焰喷涂(low temperature High Velocity Oxygen Fuel,LT-HVOF)工艺沉积了Ti-Ni涂层。采用SEM、XRD等分析了Ti-Ni涂层显微结构和相组成,探讨了热处理工艺对涂层的相组成和显微结构影响。结果表明,在950℃×5 h下单质Ti与Ni完全合金化为NiTi(B2),Ni3Ti及Ti2Ni。在950℃×5 h+850℃×1 h+水冷,涂层中NiTi(B2)结晶度更高,涂层均匀致密。

关键词(KeyWords)： LT-HVOF;Ti-Ni涂层;热处理

Abstract:

Keywords:

基金项目(Foundation): 广东省自然科学基金(1051065101000002)

作者(Author): 张梦婷,刘敏,刘立斌,邓春明

DOI: 10.13289/j.issn.1009-6264.2012.s2.027

参考文献(References)：

• [1]Halter K,Ickinger A,Siegmann S,et al.Thermal spray forming of NiTi shape memory alloys[C].USA:The International Conference on Shape Memoryand Superelastic Technologies,2004.
• [2]Verdian M M,Raeissi K,Salehi M.Corrosion performance of HVOF and APS thermally sprayed NiTi intermetallic coatings in 3.5%NaCl solution[J].Corrosion Science,2010,52:1052-1059.
• [3]Bram M,Ahmad-Khanlou A,Buchkremer H P,et al.Vacuum plasma spraying of NiTi protection layers[J].Materials Letters,2002(57):647-651.
• [4]王德政,周克崧,杨大君,等.低压等离子喷涂Ti-Ni合金涂层工艺的研究[J].广东有色金属学报,1991(1):39-44.WANG De-zheng,ZHOU Ke-song,YANG Da-jun,et al.Study on the low pressure plasma spray(LPPS)process of Ti-Ni alloy coating,GuangdongNon-ferrous Metals[J].1991(1):39-44.
• [5]Wang H T,Li C J,Yang G J,et al.Formation of NiTi intermetallics by heat treatment of cold-sprayed precursor coating[C].Xi’an:Proceedings of the4th Asian Thermal Spray Conference,2009.
• [6]戴达煌,周克崧,袁镇海.现代材料表面技术科学[M].北京:冶金工业出版社,2004.
• [7]周克崧,邓春明,邓畅光,等.Ti-Ni低温超音速火焰喷涂层及激光处理后的特征[J].材料保护,2009,42(8):62-64.ZHOU Ke-song,DENG Chun-ming,DENG Chuang-guang,et al.The feature of Ti-Ni coating prepared by low temperature HVOF after laser treatment[J].Materials Protection,2009,42(8):62-64.
• [8]Deng C M,Liu M,Deng C G,et al.Preparation and characterizations of NiTi intermetallic coatings[J].Advanced Materials Research,2011,291-294:80-83.
• [9]Zhou Y,Yang J.Phase formation in cold-Spray Ni/Ti coating during Annealing Treatment[C].Xi’an:China:Proceedings of the 4th Asian ThermalSpray Conference,2009
• [10]叶人伦,胡建华.实用无机物热力学数据手册(第二版)[M].北京:冶金工业出版社,2002.
• [11]李松瑞,周善初,田荣璋.金属热处理[M].长沙:中南大学出版社,2003.
• [12]王洪铎.NiTi金属间化合物涂层的制备及形成机理研究[D].西安石油大学,2009.
• [13]Zhu S I,Yang X I,Fu L Y,elt al.Stress-strain behavioror of porous NiTi alloys prepared by powers sintering[J].Materials Science and EngineeringA,2005,408(12):264-268.
• [14]Bastin G F,Rieck.G D,Diffusion in the Titanium-Nickel System:II.Calculations of Chemical and Intrinsic diffusion Coefficients[J].Metallurgicaltransactions,1974,5:1827-1831.
• [15]周勇.杨冠军.吴限,等.层叠Ni/Ti热扩散形成金属间化合物的规律[J].焊接学报,2010,31(9):41-45.ZHOU Yong,YANG Guan-jun,WU Xian,et al.Formation characteristics of Ni/Ti intermetallics through annealing of layered Ni/Ti[J].Transactionsof China Welding Institution,2010,31(9):41-45.

文章评论(Comment)：