张由景,程兴旺,周士猛,才鸿年,万明明.Ti2Ni/TiNi微叠层复合材料的制备及表征[J].稀有金属材料与工程,2018,47(1):293~298.[zhangyoujing,chengxingwang,zhoushimeng,caihongnian,wanmingming.Synthesis and Characterization of a Ti2Ni/TiNi Micro-Laminated Composite[J].Rare Metal Materials and Engineering,2018,47(1):293~298.]
Ti2Ni/TiNi微叠层复合材料的制备及表征
投稿时间:2015-11-16  修订日期:2016-01-25
中文关键词:  微叠层复合材料  Ti2Ni  TiNi  热压烧结
基金项目:国家自然科学基金资助(项目号51271036)
中文摘要:
      将Ti箔和Ni箔交替排列,在900oC条件下,通过热压烧结法来制备Ti2Ni/TiNi微叠层复合材料。本文研究了保温扩散时间对复合材料的微观组织及相组成的影响。采用扫描电镜(SEM)、电子探针(EPMA)、X射线衍射(XRD)及差示扫描量热分析(DSC)对不同保温时间下制备的复合材料的微观组织、相组成、相结构及相变温度进行分析。结果表明:随着保温时间的增加,Ti和Ni逐渐消耗,在其界面上形成Ti2Ni、TiNi、Ni3Ti三种金属间化合物。当Ni消耗完毕,Ti原子向Ni3Ti层扩散,使之完全转变成TiNi。当Ti完全消耗,仅有交替排列的Ti2Ni和TiNi两相存在,且在TiNi层上分布着颗粒状和条状的Ti2Ni相。保温8小时后制备的Ti2Ni/TiNi叠层复合材料的相变温度As、Af、Ms、Mf及相变迟滞温度ΔT分别为75.9oC,99.2oC,63.6oC,45.7oC和32.5oC。
Synthesis and Characterization of a Ti2Ni/TiNi Micro-Laminated Composite
英文关键词:micro-laminated composite  Ti2Ni  TiNi  hot pressed sintering
英文摘要:
      Using alternatively stacked Ti and Ni foils, a Ti2Ni/TiNi micro-laminated composite was fabricated by hot pressed sintering at 900 oC. The effect of diffusion time on the microstructure and constitutional phases of the composites was investigated. The scanning electron microscope (SEM), electron probe microanalysis (EPMA), X-ray diffraction (XRD) and differential scanning calorimetry (DSC) were employed to analyze the microstructure, constitutional phases, phase structures and phase transition temperatures of the fabricated composites. The results indicate that Ti and Ni foils are gradually consumed with the increase of diffusion time and three intermetallic layers (Ti2Ni, TiNi, Ni3Ti) are produced at the interfaces of Ti/Ni. When Ni foils are completely consumed, Ti atoms diffuse into Ni3Ti layers, tranforming the Ni3Ti layers into TiNi. After Ti foils are completely consumed, only alternatively arranged Ti2Ni and TiNi layers exist. Moreover, there are lots of granular and strip-shaped Ti2Ni phases distributing in the TiNi layers. The As, Af, Ms, Mf and transition hysteresis temperature (ΔT) of the composite fabricated after 8h diffusion are 75.9 oC,99.2 oC,63.6 oC,45.7 oC and 32.5 oC, respectively.
作者单位E-mail
张由景 北京理工大学材料学院 冲击环境材料技术国家级重点实验室 zhangyoujing1988@126.com 
程兴旺 北京理工大学材料学院 冲击环境材料技术国家级重点实验室 chengxw@bit.edu.cn 
周士猛 北京理工大学材料学院 冲击环境材料技术国家级重点实验室  
才鸿年 北京理工大学材料学院 冲击环境材料技术国家级重点实验室  
万明明 中国兵器工业集团第研究所烟台分所  
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