| 时效温度对K487合金组织和性能的影响 |
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| 引用本文： | 王祯,邵冲,孔胜国,赵明汉,李俊涛,姚曼.时效温度对K487合金组织和性能的影响[J].钢铁研究学报,2008,20(1):50-0. |
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| 作者姓名： | 王祯 邵冲 孔胜国 赵明汉 李俊涛 姚曼 |
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| 作者单位： | 大连理工大学材料科学与工程学院,辽宁,大连,116023;钢铁研究总院高温材料研究所,北京,100081;钢铁研究总院高温材料研究所,北京,100081;大连理工大学材料科学与工程学院,辽宁,大连,116023 |
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| 摘 要： | 研究了不同时效温度对K487合金组织和性能的影响。结果表明，随时效温度提高，合金组织中γ′相尺寸增大，针状μ相减少，不规则块状和条状μ相边缘尖角变圆钝，合金强度下降，塑性提高。经900 ℃×5 h时效后，合金可获得较好的综合性能，其屈服强度约685 MPa，伸长率和断面收缩率分别达到105%和155%。
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| 关 键 词： | 高温合金 时效温度 组织 性能 |
| 文章编号： | 1001-0963(2008)01-0050-04 |
| 收稿时间： | 1900-01-01; |
Effects of Aging Temperature on Microstructure and Properties of K487 Alloy |
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| WANG Zhen,SHAO Chong,KONG Sheng-guo,ZHAO Ming-han,LI Jun-tao,YAO Man.Effects of Aging Temperature on Microstructure and Properties of K487 Alloy[J].Journal of Iron and Steel Research,2008,20(1):50-0. |
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| Authors: | WANG Zhen SHAO Chong KONG Sheng-guo ZHAO Ming-han LI Jun-tao YAO Man |
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| Affiliation: | 1. School of Material Science and Engineering, Dalian University of Technology, Dalian 116023, Liaoning, China; 2. High Temperature Materials Division, Central Iron and Steel Research Institute, Beijing 100081, China |
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| Abstract: | The effects of aging temperature on microstructure and properties of K487 alloy have been investigated. The results show that as the rising of aging temperature, the diameter of γ′ phase increases, the amount of needle μ phase decreases, the edge of blocky μ phase is changed from sharp corner to blunt edge, and tensile properties of alloy decrease and the plastic properties increase. When aged at 900 ℃, the alloy has a good combination property, for example, yield strength is about 685 MPa, elongation and reduction of area reach 105% and 155%. |
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| Keywords: | superalloy aging temperature microstructure property |
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