| 准原位拉伸1420Al-Li合金的织构变化 |
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| 引用本文： | 陈忠伟,赵静,艾艳玲. 准原位拉伸1420Al-Li合金的织构变化[J]. 电子显微学报, 2011, 0(Z1) |
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| 作者姓名： | 陈忠伟 赵静 艾艳玲 |
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| 作者单位： | 西北工业大学凝固技术国家重点实验室; |
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| 基金项目： | 航天创新基金2009资助项目 |
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| 摘 要： | 1420Al-Li合金以其高比强度,高比刚度以及优良的低温性能,良好的耐腐蚀性和成型性而成为航空航天理想的轻质结构材料。本文对1420Al-Li合金进行了准原位拉伸试验,利用场发射扫描电子显微镜上安装的背散射电子衍射仪(EBSD-Channel5)对试样进行取向分析。EBSD结果表明:拉伸之前,1420Al-Li合金试样中存在弱织构{001}<100>;拉伸之后,弱织构消失,试样拉伸区存在近似于{001}<100>的{018}<018>织构。拉伸过程中晶粒绕晶带轴[001]和[010]发生转动,引起合金试样拉伸前后织构的变化。
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| 关 键 词： | 1420Al-Li合金 准原位拉伸 EBSD 织构 |
Texture of 1420 Al-Li alloy in quasi-in-situ tension |
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| CHEN Zhong-wei,ZHAO Jing,AI Yan-ling. Texture of 1420 Al-Li alloy in quasi-in-situ tension[J]. Journal of Chinese Electron Microscopy Society, 2011, 0(Z1) |
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| Authors: | CHEN Zhong-wei ZHAO Jing AI Yan-ling |
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| Affiliation: | CHEN Zhong-wei,ZHAO Jing,AI Yan-ling(State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an Shaanxi 710072,China) |
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| Abstract: | 1420 alloy is Al-Mg-Li aluminum-lithium alloy.Due to their low density,high-strength and weldable property,1420 alloys are regarded as ideal structural materials for aerospace and aviation applications.Quasi-in-situ tension experiments of the 1420 alloy samples were carried out on the specimens loading stage of NTSET-5000 tensile testing machine.EBSD tests on the texture in tension regions of the sample after ion etching were performed in field-emission scanning electron microscope by HKL Channel 5.EBSD ana... |
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| Keywords: | 1420 Al-Li alloy quasi-in-situ tension EBSD texture |
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