| 三种热处理制度对GH648合金组织和性能的影响 |
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| 引用本文： | 周轶群,马惠萍,鞠泉,周铁涛.三种热处理制度对GH648合金组织和性能的影响[J].钢铁研究学报,2007,19(12):45-0. |
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| 作者姓名： | 周轶群 马惠萍 鞠泉 周铁涛 |
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| 作者单位： | 1. 北京航空航天大学材料科学与工程学院,北京,100083
2. 钢铁研究总院高温材料研究所,北京,100081 |
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| 摘 要： | 研究了A、B、C三种热处理制度对GH648合金组织和性能的影响。结果表明，与标准热处理制度A相比，经B、C制度处理后，GH648合金组织中的α Cr相析出量增加、尺寸长大；C制度对组织中γ′相的析出也有促进作用；另外，α Cr相的大量析出会导致GH648合金的冲击韧性变差。力学性能测试结果表明,C制度可使合金强度提高、塑性下降、冲击韧性急剧下降。
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| 关 键 词： | GH648合金 热处理制度 显微组织 力学性能 |
| 文章编号： | 1001-0963（2007）12-0045-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2007-07-12 |
Effects of Three Kinds of Heat Treatment on Microstructure and Mechanical Properties of Alloy GH648 |
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| ZHOU Yi-qun,MA Hui-ping,JU Quan,ZHOU Tie-tao.Effects of Three Kinds of Heat Treatment on Microstructure and Mechanical Properties of Alloy GH648[J].Journal of Iron and Steel Research,2007,19(12):45-0. |
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| Authors: | ZHOU Yi-qun MA Hui-ping JU Quan ZHOU Tie-tao |
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| Affiliation: | 1. School of Material Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China; 2. High Temperature Materials Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China |
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| Abstract: | The effect of heat treatment A, B and C on the microstructure and mechanical properties of GH648 alloy was studied. It is suggested that ,comparing to the standard heat treatment A of GH648 alloy, the amount and size of α Cr phase increased after B and C treatment, and C treatment also promoted the precipitation of γ′ phase of GH648 alloy. Furthermore, lots of precipitation of α Cr phase damaged the impact energy of GH648 alloy. The experimental results showed that heat treatment C make the alloy have higher strength, lower ductility and worse impact energy. It is the disadvantage of the use of GH648 alloy. |
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| Keywords: | GH648 alloy heat treatment microstructure mechanical properties |
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