| Fe3Al合金的高温变形行为 |
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| 引用本文： | 张喜马,陈家光.Fe3Al合金的高温变形行为[J].上海交通大学学报,1998,32(2):49-52. |
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| 作者姓名： | 张喜马 陈家光 |
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| 作者单位： | 上海交通大学国家教委高温材料及高温测试开放实验室，宝山钢铁总厂钢铁研究所 |
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| 摘 要： | 用载荷松弛法对Ｆｅ－２８Ａｌ－２Ｔｉ合金在较高温度下的变形行为进行了研究．测定了Ｆｅ－２８Ａｌ－２Ｔｉ合金在高温变形时的载荷松弛曲线、应力减小因子Ｙ及激活能值，并对试样进行了显微结构观察．结果表明，Ｆｅ－２８Ａｌ－２Ｔｉ合金的高温变形是一个亚晶界吸收位错，而且不断向大角晶界转变的过程．
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| 关 键 词： | 金属间化合物 载荷松弛 晶界滑移 晶内变形 亚晶界 |
Deformation Behavior of Fe 3Al Alloy at Elevated Temperature |
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| Zhang Xima,T.L.Lin.Deformation Behavior of Fe 3Al Alloy at Elevated Temperature[J].Journal of Shanghai Jiaotong University,1998,32(2):49-52. |
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| Authors: | Zhang Xima TLLin |
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| Abstract: | The deformation behavior of Fe 28Al 2Ti alloy at elevated temperature is investigated mainly using a load relaxation method. The load relaxation curve in Fe 28Al 2Ti at elevated temperature is obtained. The stress reduction factor Y and the flow activation energy are determined. And the microstructure is observed by TEM. The results show that the deformation process at elevated temperature is a process in which subgrain boundaries absorb dislocation and change their misorientation continuously. |
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| Keywords: | intermetallics load relaxation grainboundary sliding grain matrix deformation subgrain boundary |
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