| γ相的变形行为及其对Ni－Al－Fe－B合金形状记忆效应的影响 |
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| 引用本文： | 谢超英,江伯鸿,胡赓祥.γ相的变形行为及其对Ni－Al－Fe－B合金形状记忆效应的影响[J].航空学报,1994,15(12):1528-1531. |
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| 作者姓名： | 谢超英 江伯鸿 胡赓祥 |
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| 作者单位： | 上海交通大学 |
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| 摘 要： | 通过显微组织分析和宏观力学,研究了Ｎｉ－Ａｌ－Ｆｅ－Ｂ合金中γ相的变形行为及其对合金形状记忆效应（ＳＭＥ）的影响。结果表明：在低应力作用下,Ｎｉ－Ａｌ－Ｆｅ－Ｂ合金发生应力诱发马氏体相变时,有少量γ相以滑移方式参与协调变形,以至合金在较小的应变量下也得不到完全的ＳＭＥ。合金的形状记忆恢复率随应变量增加呈现阶段性衰减趋势。当应变量为４％时,形状记忆恢复率可达７５％。
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| 关 键 词： | 相 变形 记忆 合金 效应 |
DEFORMATION OF THE γ-PHASE AND ITS EFFECT ON THE SHAPE MEMORY EFFECT OF A Ni-Al-Fe-B ALLOR |
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| Xie Chaoyhg,Jiang Bohong,Hu Gengxiang.DEFORMATION OF THE γ-PHASE AND ITS EFFECT ON THE SHAPE MEMORY EFFECT OF A Ni-Al-Fe-B ALLOR[J].Acta Aeronautica et Astronautica Sinica,1994,15(12):1528-1531. |
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| Authors: | Xie Chaoyhg Jiang Bohong Hu Gengxiang |
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| Institution: | Faculty 520 of shanghai Jiao Tong University, Shanghai, 200030 |
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| Abstract: | The deformation of the γ-phase and its effect on the shape memory effect of a Ni-Al-Fe-B alloy were studied by means of optical and SEM metallographic exanllnations,microhardness measurement and compression test.It was found that a few γ-phases deformed coordinatedly in a slip manner when the stress induced martensitic transfonnation took plaee in the matrix at a low stress.The shape recovery ratio decreased by stages,with the increase of the strain.When the strain was 4%,the shape recovery ratio retained 75%. |
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| Keywords: | phases defoimation memory alloys effects |
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