| DD8单晶镍基高温合金热处理制度研究 |
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| 引用本文： | 张静华 张志亚. DD8单晶镍基高温合金热处理制度研究[J]. 材料开发与应用, 1997, 12(1): 27-33 |
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| 作者姓名： | 张静华 张志亚 |
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| 作者单位： | 中国科学院金属研究所 |
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| 摘 要： | 研究了热处理工艺对ＤＤ８单晶高温合金组织及性能的影响，结果表明，经过１１００℃／８ｈＡ．Ｃ．＋１２４０℃／４ｈＡ．Ｃ．＋１０９０℃／２ｈＡ．Ｃ．＋８５０℃／２４ｈＡ．Ｃ的４级处理明显改善了ＤＤ８单晶合金元素的枝晶偏析，合金中γ相获最佳含量并形成适当尺寸配合，合金获得理想的综合性能。
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| 关 键 词： | DD8单晶 高温合金 热处理 组织 持久性能 |
Investigation of the Heat Treatment in a Single Crystal Nickel base Superalloy |
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| Zhang Jinghua Zhang Zhiya Li Yingao. Investigation of the Heat Treatment in a Single Crystal Nickel base Superalloy[J]. Development and Application of Materials, 1997, 12(1): 27-33 |
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| Authors: | Zhang Jinghua Zhang Zhiya Li Yingao |
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| Abstract: | The effect of heat treatment on the microstructure and properties of DD8 single crystal nickel-base superalloy was investigated. The results show that the combined properties of the alloy can be obtained by using the heat treatment as follows:1100℃/8h A.C.+1240℃/4h A.C.+1090℃/2h A.C.+850℃/24h A.C. This is because the segregation of the alloying elements can be improved, the optimum content of the γ-precipitated and the critical misfit between the γ/γinterfaces can be obtained through the heat treatment. |
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| Keywords: | DD8 single crystal Superalloy Heat treatment Structure Rupture property |
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