| Ti含量对Ni53Mn23.5Ga23.5-xTix铁磁性形状记忆合金组织和性能的影响 |
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| 引用本文： | 董桂馥,李学慧,李艳琴,部德才,刘志升,蔡 伟,高志勇,隋解和.Ti含量对Ni53Mn23.5Ga23.5-xTix铁磁性形状记忆合金组织和性能的影响[J].稀有金属材料与工程,2010,39(10):1785-1789. |
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| 作者姓名： | 董桂馥 李学慧 李艳琴 部德才 刘志升 蔡 伟 高志勇 隋解和 |
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| 作者单位： | 1. 大连大学,辽宁,大连,116622
2. 哈尔滨工业大学,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 采用光学显微镜、示差扫描热分析、交流磁化率测试和室温压缩试验等方法系统研究Ti含量对Ni53Mn23.5Ga23.5-xTix (x=0, 0.5, 2, 3.5, 8, 15)合金的显微组织、相变行为、力学行为和磁学特性的影响规律。结果表明：Ti元素在合金中的极限固溶度低于15%；随着Ti含量的增加，合金的相变温度和断裂强度及断裂应变先逐渐增加后降低，其断裂方式由沿晶断裂转变为穿晶断裂再到沿晶断裂；而合金的居里温度随Ti含量的增加逐渐降低
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| 关 键 词： | Ni53Mn23.5Ga23.5-xTix合金 铁磁性形状记忆合金 磁性能 力学性能 |
| 收稿时间： | 2009/9/25 0:00:00 |
Effect of the Ti Content on Microstructure and Properties of Ni53Mn23.5Ga23.5-xTix Ferromagnetic Shape Memory Alloy |
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| Dong Guifu,Li Xuehui,Li Yanqin,Bu Decai,Liu Zhisheng,Cai Wei,Gao Zhiyong and Sui Jiehe.Effect of the Ti Content on Microstructure and Properties of Ni53Mn23.5Ga23.5-xTix Ferromagnetic Shape Memory Alloy[J].Rare Metal Materials and Engineering,2010,39(10):1785-1789. |
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| Authors: | Dong Guifu Li Xuehui Li Yanqin Bu Decai Liu Zhisheng Cai Wei Gao Zhiyong and Sui Jiehe |
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| Affiliation: | Dalian University, Dalian 116622, China;Dalian University, Dalian 116623, China;Dalian University, Dalian 116624, China;Dalian University, Dalian 116625, China;Dalian University, Dalian 116626, China;Dalian University, Dalian 116627, China;Harbin Institute of Technology, Harbin 150001, China;Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The effect of the Ti content on polycrystalline microstructure, phase transformation behavior, mechanical behavior and magnetic properties of the Ni53Mn23.5Ga23.5-xTix (x = 0, 0.5, 2, 3.5, 8, 15, at%) ferromagnetic shape memory alloy was studied by means of OM, DSC, room temperature compression tests and ac susceptibility measurements. The results show that the solubility limit of Ti element in the alloys is below 15%. The transformation temperature, the fracture strength and the fracture strain increase at first and then decrease with increasing of the Ti content. Furthermore, it is concluded that Ti addition can change the fracture type of Ni53Mn23.5Ga23.5-xTix alloys from the intergranular fracture to the transgranular to the intergranular again. In addition, the Curie temperature decreases gradually with the increase of Ti content in Ni53Mn23.5Ga23.5-xTix alloys |
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| Keywords: | Ni53Mn23 5Ga23 5-xTix (x=0 0 5 2 3 5 8 15) alloy ferromagnetic shape memory alloy magnetic properties mechanical properties |
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