| 一种含4.2%Re单晶镍基合金在蠕变期间的组织演化与变形特征(英文) |
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| 引用本文： | 田素贵,梁福顺,黎阿男,李晶晶,钱本江.一种含4.2%Re单晶镍基合金在蠕变期间的组织演化与变形特征(英文)[J].中国有色金属学会会刊,2011(7):1532-1537. |
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| 作者姓名： | 田素贵 梁福顺 黎阿男 李晶晶 钱本江 |
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| 作者单位： | 沈阳工业大学材料科学与工程学院; |
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| 基金项目： | Project(50571070) supported by the National Natural Science Foundation of China |
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| 摘 要： | 通过组织形貌观察及蠕变曲线测定,研究了一种含Re镍基单晶合金的高温蠕变行为。结果表明:含4.2%Re单晶合金在1060-1100℃温度区间具有较好的承温能力,但表现出较强的施加应力敏感性。经高温蠕变断裂后,在试样不同区域γ′相具有不同的组织形貌,在远离断口区域γ′相形成的筏状组织与施加应力轴方向垂直,而在近断口区域,筏状γ′相的粗化及扭曲程度的增大为该区域发生较大塑性变形所致。在蠕变后期,合金的变形机制是迹线方向为011]和011]的滑移位错切入筏状γ′相,主、次滑移系交替开动,使筏状γ′相发生扭折形成不规则的扭曲形态,直至发生断裂是合金的蠕变断裂机制。
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| 关 键 词： | 单晶镍基合金 Re 蠕变 组织演化 变形机制 |
Microstructure evolution and deformation features of single crystal nickel-based superalloy containing 4.2% Re during creep |
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| TIAN Su-gui,LIANG Fu-shun,LI A-nan,LI Jing-jing,QIAN Ben-jiang School of Materials Science , Engineering,Shenyang University of Technology,Shenyang ,China.Microstructure evolution and deformation features of single crystal nickel-based superalloy containing 4.2% Re during creep[J].Transactions of Nonferrous Metals Society of China,2011(7):1532-1537. |
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| Authors: | TIAN Su-gui LIANG Fu-shun LI A-nan LI Jing-jing QIAN Ben-jiang School of Materials Science Engineering Shenyang University of Technology Shenyang China |
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| Affiliation: | TIAN Su-gui,LIANG Fu-shun,LI A-nan,LI Jing-jing,QIAN Ben-jiang School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110870,China |
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| Abstract: | |
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| Keywords: | single crystal nickel-based superalloy Re creep microstructure evolution deformation mechanism |
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