| 不同热处理条件下TiNiCr形状记忆合金的超弹性 |
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| 引用本文： | 司乃潮,武 英,司松海,张志敏.不同热处理条件下TiNiCr形状记忆合金的超弹性[J].有色金属(冶炼部分),2011(6):24-28. |
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| 作者姓名： | 司乃潮 武 英 司松海 张志敏 |
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| 作者单位： | 1. 江苏大学材料学院,江苏镇江,212013
2. 镇江忆诺唯记忆合金有限公司,江苏镇江,212009 |
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| 基金项目： | 江苏省科技型中小企业技术创新资金项目(BC2007144)；镇江市工业科技攻关项目(GY2007023)；江苏大学“科技创新团队”资助项目 |
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| 摘 要： | 利用WDW-10微机控制电子式万能拉伸试验机和D/max2500PC全自动X射线衍射仪研究TiNi-Cr形状记忆合金的超弹性。结果表明,试样的超弹性受热处理影响显著,不同温度下热处理的样品呈现出不同的弹性曲线。随着加热温度和保温时间的增加,样品弹性先增强后减弱。TiNiCr合金在430℃的退火温度下,保温10~20min可以呈现出良好的完全非线性超弹性。经过热处理的试样会析出强化相Cr3Ni2,析出在430℃保温20min时达到极值,之后随着温度的增加和保温时间的增长都会降低。在该热处理工艺下产生的样品超弹性达到极值。
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| 关 键 词： | 金属材料 记忆合金 TiNiCr 超弹性 热处理 强化相 |
Super-elastic of TiNiCr Shape Memory Alloys under Different Heat-treatment |
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| SI Nai-chao,WU Ying,SI Song-hai and ZHANG Zhi-min.Super-elastic of TiNiCr Shape Memory Alloys under Different Heat-treatment[J].Nonferrous Metals(Extractive Metallurgy),2011(6):24-28. |
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| Authors: | SI Nai-chao WU Ying SI Song-hai and ZHANG Zhi-min |
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| Affiliation: | School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;Zhenjiang Innov Alloy Co. Ltd, Zhenjiang 212009, Jiangsu, China;School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China |
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| Abstract: | The super-elastic performance of TiNiCr shape memory alloy are investigated by using WDW-10 Electronic Universal testing machines and XRD test.The results show that the super-elastic performance of the sample is remarkably influenced by the heat-treatment technology,and the elastic curves of the heat-treated samples vary to different temperatures.With the increase of heat-treatment temperature and retention time,the elastic property is firstly increased and then decreased.The completely super-elastic perfor... |
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| Keywords: | metal material SMA TiNiCr super-elastic heat-treatment strengthening phase |
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