| 板状FeMnSiCrNi合金试件的形状记忆效应 |
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| 引用本文： | 李俊良,杜彦良,孙宝臣. 板状FeMnSiCrNi合金试件的形状记忆效应[J]. 功能材料与器件学报, 2003, 9(1): 79-82 |
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| 作者姓名： | 李俊良 杜彦良 孙宝臣 |
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| 作者单位： | 石家庄铁道学院大型结构健康诊断与控制研究所,石家庄,050043 |
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| 基金项目： | 河北省博士基金资助项目(No.B2001215) |
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| 摘 要： | 研究了板状Fe-30Mn-6Si-4Cr-5Ni铁基合金的形状记忆效应，探索了固溶处理温度、预应变大小和恢复温度等因素对其形状记忆效应的影响规律。试验结果表明：这种板状试件不同于薄片状或丝材试件，它们在受拉伸作用下，由于泊松比的影响处于复杂的三维受力状态，这样在应力诱发马氏体相变过程，马氏体呈多取向诱发生成，结果导致当预应变大小为1%时，其形状恢复率仅为80%左右；最佳的固溶处理温度为850℃；恢复处理温度最佳为600℃。
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| 关 键 词： | 形状记忆效应 固溶处理温度 预应变 恢复处理温度 |
| 文章编号： | 1007-4252(2003)01-0079-04 |
| 修稿时间： | 2002-07-01 |
Shape memory effect of the platy specimens of the FeMnSiCrNi alloy |
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| LI Jun-liang,DU Yan-liang,SUN Bao-chen. Shape memory effect of the platy specimens of the FeMnSiCrNi alloy[J]. Journal of Functional Materials and Devices, 2003, 9(1): 79-82 |
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| Authors: | LI Jun-liang DU Yan-liang SUN Bao-chen |
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| Abstract: | The shape memory effect (SME) of Fe-30Mn-6Si-4Cr-5Ni alloy was studied.The influences of solid solution temperature,pre-strain and the recovery annealing temperature on the SME of the alloy were investigated. The experimental results show that the platy specimens are in a stress state of tri-axial load due to the influence of Poisson ratio when being tensioned,so that the martensiteare formed in muti-orientations in the course of stress-induced transformation.When the pre-strain is1%, its shape recovery ratio is around 80%; the optimal solid solution temperature is 850oC; and the optimal recovery temperature (600oC) is determined by experiments. |
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| Keywords: | shape memory effect solid solution temperature pre-strain recovery annealing temperature |
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