材料期刊网，材料期刊，材料类期刊，材料期刊投稿

采用Nd:YAG激光和光纤激光焊接了Ti-50.7%Ni(原子分数)记忆合金, 利用DSC, SEM和EDS对焊缝金属相变温度的变化规律和影响因素进行了分析, 并对焊接接头的记忆功能进行了研究. 结果表明, 不同焊接工艺参数的焊缝金属与母材相比,相变温度有明显差异, 产生差异的主要原因是组织的不同和...

关键词: 激光焊接 , shape memory alloy , transformation temperature , Ni content in the matrix

TiNi形状记忆合金中的亚稳相

赵兴中 , 吴杏芳 , 柯俊

金属学报

用选区电子衍射结合约化胞程序分析的方法，发现在缓冷的ＴｉＮｉ合金中存在以（１／２）〈００１〉和（１／８）〈２１０〉超点阵衍射斑点为特征的亚稳相──ｘ相，它属于单斜晶系，其点阵常数为：ａ＝０．６６９ｎｍ，ｂ＝０．６０３ｎｍ，ｃ＝０．９５１ｎｍ和β＝９５°。

关键词: ＴｉＮｉ形状记忆合金 , shape memory alloy , superlattice diffraction spot

Ti-Ni-V形状记忆合金超弹性研究

贺志荣

稀有金属材料与工程

采用拉伸和应力-应变循环实验研究了退火温度、时效温度、时效时间、形变温度和应力-应变循环对Ti-50.8Ni-0.5V(原子分数,％)形状记忆合金超弹性(SE)的影响.随退火温度的升高,合金的应力诱发马氏体临界应力(σM)先减小后增大,超弹性残留应变(εR)先增大后减小再增大,为了获得优异的室温SE...

关键词: Ti-Ni-V合金 , 形状记忆合金 , 超弹性 , 热处理 , 循环形变

STUDY ON THE MAGNETISM AND PHASE TRANSFORMATION IN Fe-Mn-Si-C SHAPE MEMORY ALLOYS

Z.X Qinand Y.S. Zhang(Department of Materials Science and Engineering , Dalian Railway Institute , Dalian 116028 , China)

金属学报(英文版)

The hyperfine interactions of two shape memory alloys have been studied by Mossbauer effect measurement at various temperatures. The Mossbauer spectra exhibit a mag-netic change from antiferro magnetic state to paramagnetic state when the temperuture rises. The Fe-Mn-Si alloys have a small hyperfine...

关键词: phase transformation , null , null , null

EMISSION M■SSBAUER SPECTROSCOPY OF NiTi SHAPE MEMORY ALLOY

Y G. Li and CS. Xue (Institute of Semiconductor Research , Shandong Normal University , Jinan 250014 , China)G.L. Zhang(Shanghai Institute of Nuclear Research , The Chinese Academy of Sciences , Shanghai 201800 , China )

金属学报(英文版)

The emission Mssbauer Spectroscopy in cotnbination with transmission electron microscope was used to study NiTi shape memory alloy. The damage and the precipitated phase in NiTi alloy have heen discussed....

关键词: emission m■ssbauer spectroscopy , null

THE ACCURATE MOLECULAR FORMULA OF "Ti_(11)Ni_(14)" PHASE

C.L. Chu , G.J. Shen , S.D. Wang , B. Li , S.G. Zhang and Z.D. Yin(BOX 433 , School of Materials Science and Engineering , Harbin Institute of Technology , Harbin 150001 , China)(Analysis and Testing Center , Southeast University , Nanjing 210018 , China)(Research Institute of Electric Light Source Materials , Ministry of Light Industry , Nanjing 210015 , China)

金属学报(英文版)

From the orientation relationship between "Ti11Ni14" phase and matrix phase (B2),the accurate molecular formula of "Ti11N14" phase has been derived in this paper. The results also show that the rhombohedral unit cell of the "Ti11Ni14" phase includes six Ti atoms, seven Ni atoms and one vacancy, belo...

关键词: TiNi , null , null

材料期刊网

激光焊接参数对TiNi合金相变温度的影响

TiNi形状记忆合金中的亚稳相

Ti-Ni-V形状记忆合金超弹性研究

STUDY ON THE MAGNETISM AND PHASE TRANSFORMATION IN Fe-Mn-Si-C SHAPE MEMORY ALLOYS

EMISSION M■SSBAUER SPECTROSCOPY OF NiTi SHAPE MEMORY ALLOY

THE ACCURATE MOLECULAR FORMULA OF "Ti_(11)Ni_(14)" PHASE

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