| Ni3Al—Mo高温复合材料的拉伸特性 |
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| 引用本文： | 王成国,菊池潮美.Ni3Al—Mo高温复合材料的拉伸特性[J].金属学报,1991,27(2):135-139. |
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| 作者姓名： | 王成国 菊池潮美 |
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| 作者单位： | 山东工业大学，日本京都大学 讲师 |
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| 摘 要： | 采用定向凝固法制得Ni_3Al-Mo复合材料,以3.3×10~(-3),3.3×10~(-4),3.3×10~(-5)s~(-1)三种形变速度,分别在室温至1273K温度范围内作拉伸试验。结果发现,屈服应力随温度上升而增加,在973K附近,显示强度峰值,变形过程中,Mo纤维起着阻止位错运动,抑制塑性变形的作用。
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| 关 键 词： | Ni3Al－Mo合金 拉伸性能 纤维强化 |
| 收稿时间： | 1991-02-18 |
| 修稿时间： | 1991-02-18 |
TENSILE BEHAVIOUR OF HIGHTEMPERATURE Ni_3 Al-Mo COMPOSITE |
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| WANG Chengguo Shandong Polytechnic University,Jinan,KIKUCHI Shiomi Kyoto University,Japan.TENSILE BEHAVIOUR OF HIGHTEMPERATURE Ni_3 Al-Mo COMPOSITE[J].Acta Metallurgica Sinica,1991,27(2):135-139. |
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| Authors: | WANG Chengguo Shandong Polytechnic University Jinan KIKUCHI Shiomi Kyoto University Japan |
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| Abstract: | The tensile behaviour of Ni_3Al-Mo alloy, prepared by directional soli-dification, was examined at the strain rates 3.3×10~(-3), 3.3×10~(-4) and 3.3×10~(-5) s~(-1)respectively, in the range from room temperature to 1273 K. The yield stress isfound to increase with raising of temperature, and reaches to a maximum at973 K. During tensile deformation, the Mo fibres act as retardation of dislocationmovement and restraint of plastic deformation. |
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| Keywords: | Ni_3Al-Mo alloy fibre reinforcement high temperature composite tensile behaviour |
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