| 新型钻基耐热合金高温流变变形行为 |
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| 引用本文： | 汤春峰,曲选辉,段柏华,何新波. 新型钻基耐热合金高温流变变形行为[J]. 北京科技大学学报, 2006, 28(6): 542-545 |
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| 作者姓名： | 汤春峰 曲选辉 段柏华 何新波 |
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| 作者单位： | 1. 中南大学粉末冶金国家重点实验室,长沙,410083;北京科技大学材料科学与工程学院新金属材料国家重点实验室,北京,100083
2. 北京科技大学材料科学与工程学院新金属材料国家重点实验室,北京,100083 |
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| 摘 要： | 在Gleeble-1500热模拟机上,采用等温压缩试验,研究了一种含Ti和Al的新型钴基耐热合金在850～1 150℃温度范围的压缩变形行为.实验结果表明:该合金具有良好的抗高温流变性能,在850℃及应变速率0.0021～2.1 s-1范围时其峰值流变应力可以达到360～475MPa.合金的流变行为可用Zener-Hollomon参数来描述.
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| 关 键 词： | 钴基合金 热压缩变形 流变应力 等温压缩试验 耐热合金 高温流变 压缩变形行为 high temperature alloy cobalt modified behavior 描述 参数 流变行为 流变应力 峰值 温度范围 应变速率 流变性能 抗高温 金具 结果 实验 |
| 收稿时间： | 2006-03-22 |
| 修稿时间： | 2006-04-23 |
Flow behavior of a modified cobalt alloy at high temperature |
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| TANG Chunfeng,QU Xuanhui,DUAN Baihua,He Xinbo. Flow behavior of a modified cobalt alloy at high temperature[J]. Journal of University of Science and Technology Beijing, 2006, 28(6): 542-545 |
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| Authors: | TANG Chunfeng QU Xuanhui DUAN Baihua He Xinbo |
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| Affiliation: | 1 . State Key Laboratory for Powder Metallurgy, Central South University, Chaogsha 410083, China; 2. State Key Laboratory for Advanced Metals and Materials, Materials Science and Engineering School, University of Science and Technology Beijiog, Beijing 100083, China |
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| Abstract: | The isothermal compression deformation behavior of a modified cobalt alloy was investigated at temperatures from 850 to 1 150 12 with Gleeble-1500 simulation machine. The experimental results show that the alloy has excellent high-temperature mechanical properties. Its maximum flow stress at 850 12 is in the range of 360- 475 MPa when the strain rate is between 0. 0021 and 2.1 s^- 1. The flow stress of the alloy during high temperature deformation can be described by Zener-Hollomon parameter. |
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| Keywords: | Cobalt-base alloy hot compression deformation flow stress isothermal compression test |
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