通过真空感应熔炼、锻造及拔丝工艺制备了成分源于Ni48 Ti46 Nb3 W3(原子分数)的W/NiTi(Nb)形状记忆合金原位自生复合材料,采用X射线衍射仪、扫描电镜、能谱仪及拉伸试验机研究了其微观组织结构与力学性能.结果表明:复合材料丝材中W呈横截面为片状的亚微米级纤维,且沿丝轴向均匀分布在NiTi(Nb)基体中,两组元界面结合良好;该复合材料丝材在室温下平台应力达1.2 GPa,并呈现高机械阻尼性能.
参考文献
| [1] | L Di Sarno;A S Elnashai .Special metals for seismic retrofitting of steel buildings[J].Progress in stuctural engineering and materials,2003(2):60-76. |
| [2] | O. Ben Mekki;F. Auricchio .Performance evaluation of shape-memory-alloy superelastic behavior to control a stay cable in cable-stayed bridges[J].International journal of non-linear mechanics,2011(2):470-477. |
| [3] | K. Johansen;H. Voggenreiter;G. Eggeler .On the effect of TiC particles on the tensile properties and on the intrinsic two way effect of NiTi shape memory alloys produced by powder metallurgy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1999(0):410-414. |
| [4] | Chen Ying;Jiang Hai-chang;Rong Li-jian .Mechanical behavior in NiTiNb shape memory alloys with low Nb content[J].Intermetallics,2011(2):217-220. |
| [5] | Y. SUTOU;T. OMORI;R. KAINUMA .Enhancement of Superelasticity in Cu-Al-Mn-Ni Shape-Memory Alloys by Texture Control[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2002(9):2817-2824. |
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