| IN718合金近等温锻造研究 |
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| 引用本文： | 宁永权,姚泽坤,岳太文,郭鸿镇,虢迎光,田军强.IN718合金近等温锻造研究[J].锻压技术,2009,34(2). |
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| 作者姓名： | 宁永权 姚泽坤 岳太文 郭鸿镇 虢迎光 田军强 |
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| 作者单位： | 1. 西北工业大学,材料科学与工程学院,陕西,西安,710072
2. 红原航空锻铸工业公司,陕西,三原,713801 |
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| 摘 要： | 对IN718合金进行近等温锻造实验.结果表明:近等温锻造IN718合金微观组织和拉伸性能对温度场敏感,对变形量和应变速率不敏感,有利于IN718合金近等温加工成形.当成形温度较低时(980℃),晶粒细小,间隙相以短棒状析出,分散程度高,塑性性能高,但是屈服强度低;当成形温度较高时(1060℃),晶粒粗大,仅在晶界处有间隙相以针状析出,塑性性能较低,但是屈服强度好转;在1020℃近等温锻造IN718合金,晶粒细小,短棒状问隙相在晶内析出、针状间隙相在晶界处析出,拉伸性能优越,针状间隙相对屈服强度贡献显著.
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| 关 键 词： | 近等温锻造 IN718合金 拉伸性能 间隙相 |
Near-isothermal forging of IN718 alloys |
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| NING Yong-quan,YAO Ze-kun,YUE Tai-wen,GUO Hong-zhen,GUO Ying-guang,TIAN Jun-qiang.Near-isothermal forging of IN718 alloys[J].Forging & Stamping Technology,2009,34(2). |
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| Authors: | NING Yong-quan YAO Ze-kun YUE Tai-wen GUO Hong-zhen GUO Ying-guang TIAN Jun-qiang |
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| Affiliation: | NING Yong-quan1,YAO Ze-kun1,YUE Tai-wen1,GUO Hong-zhen1,GUO Ying-guang2,TIAN Jun-qiang2 |
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| Abstract: | Near isothermal forging holding in homogeneous temperature pattern from specimen to die was proposed for the economic production of complex-shaped components.The results indicate that microstructure and tensile properties are sensitive to the temperature pattern,and low sensitization of microstructure and tensile properties to deformation and strain rate is benefit to NIF of IN718 alloy.Fine microstructure and stick interstitial phase at high dispersion processed contribute to the excellent plasticity under... |
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