| 固溶温度对改型Inconel 718合金组织和性能的影响 |
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| 引用本文： | 吴艳阳,程世长,刘正东,李谦.固溶温度对改型Inconel 718合金组织和性能的影响[J].特殊钢,2007,28(3):19-21. |
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| 作者姓名： | 吴艳阳 程世长 刘正东 李谦 |
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| 作者单位： | 1 河南科技大学材料科学与工程学院，洛阳471003;
2钢铁研究总院，北京100081 |
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| 摘 要： | 用X-射线衍射法(XRD)和扫描电镜(SEM)研究了960～1020℃固溶+720℃8 h炉冷至620℃8 h空冷(二次时效)处理的改型718合金的力学性能和组织。结果表明,随固溶温度的提高。合金室温和350℃强度降低,塑性和韧性显著提高。随固溶温度升高,合金中强化相η数量减少,1000℃时完全消失;强化相γ′+γ″随固溶温度升高而增加,达到1000℃时最多。固溶+二次时效后,大部分γ′尺寸为10～18 nm。
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| 关 键 词： | 改型Inconel718合金 固溶温度 组织 性能 |
| 收稿时间： | 2006-11-13 |
| 修稿时间： | 2006-11-13 |
Effect of Solid Solution Temperature on Structure and Properties of Modified Inconel 718 Alloy |
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| Wu Yanyang,Cheng Shichang,Liu Zhengdong,Li Qian.Effect of Solid Solution Temperature on Structure and Properties of Modified Inconel 718 Alloy[J].Special Steel,2007,28(3):19-21. |
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| Authors: | Wu Yanyang Cheng Shichang Liu Zhengdong Li Qian |
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| Affiliation: | 1 School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang 471003;
2 Central Iron and Steel Research Institute,Beijing 100081 |
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| Abstract: | The structure and mechanical properties of 960～1020 ℃ solid solution treated + 720 ℃ 8 h furnace cooling to 620 ℃8 h air cooling double aging modified 718 alloy have been studied by X- ray diffraction(XRD)and scanning electron microscope(SEM).Results showed that with increasing solid solution temperature the ambient and 350 ℃ strength of alloy decreased,while plasticity and toughness increased; with increasing solid solution temperature, the amount of strengthening phase η in alloy decreased and disappeared at 1000 ℃,and the amount of strengthening phases γ'+γ" increased until 1000 ℃ then decreased. After solid solution + double aging,the size of most of γ' was 10~18 nm. |
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| Keywords: | Modified Inconel 718 Alloy Solid Solution Temperature Structure Properties |
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