| 淬火介质对7050铝合金末端淬特性的影响 |
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| 引用本文： | 李培跃,熊柏青,张永安,李志辉,朱宝宏,王锋,刘红伟.淬火介质对7050铝合金末端淬特性的影响[J].中国有色金属学报,2011,21(5). |
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| 作者姓名： | 李培跃 熊柏青 张永安 李志辉 朱宝宏 王锋 刘红伟 |
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| 作者单位： | 北京有色金属研究总院有色金属材料制备加工国家重点实验室,北京,100088 |
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| 基金项目： | 国家自然科学基金资助项，国际科技合作项目 |
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| 摘 要： | 采用室温水和浓度为20%的PAG水溶液(聚烷撑二醇聚合物)作为淬火介质进行Jominy末端淬火实验,用于评价7050铝合金淬透性;监测合金固溶和淬火过程中的升温速率和冷却速率,测定距淬火端不同距离的合金的淬火态电导率和时效态硬度,观察室温水淬火试样不同位置晶内淬火析出相.结果表明:采用室温水和20%PAG进行末端淬火时,合金的淬透深度分别约为65和40mm;采用PAG淬火可使合金温度快速通过淬火敏感区间,同时在淬火敏感区间外降低合金的冷却速率,使试样淬火端和中间部位合金的温度差减小.随着距淬火端距离的增加,淬火诱发析出的η平衡相的尺寸和体积分数增加,无析出区宽化.
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| 关 键 词： | 7050铝合金 Jominy末端淬火 淬火介质 淬透性 |
Effect of quenching media on Jominy end quench behavior of 7050 Al alloy |
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| LI Pei-yue,XIONG Bai-qing,ZHANG Yong-an,LI Zhi-hui,ZHU Bao-hong,WANG Feng,LIU Hong-wei.Effect of quenching media on Jominy end quench behavior of 7050 Al alloy[J].The Chinese Journal of Nonferrous Metals,2011,21(5). |
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| Authors: | LI Pei-yue XIONG Bai-qing ZHANG Yong-an LI Zhi-hui ZHU Bao-hong WANG Feng LIU Hong-wei |
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| Affiliation: | LI Pei-yue,XIONG Bai-qing,ZHANG Yong-an,LI Zhi-hui,ZHU Bao-hong,WANG Feng,LIU Hong-wei(State Key Laboratory of Nonferrous Metals and Processes,General Research Institute for Nonferrous Metals,Beijing 100088,China) |
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| Abstract: | The Jominy end quench test was used to evaluate the hardenability of 7050 Al alloys.The room-temperature water and 20%PAG were adopted as quenching media respectively in this test.The heating and cooling rates of the 7050 bar were monitored.The as-aged hardness and as-quenched electrical conductivity of alloys at different distances from the quenched end were collected,and the intragranular precipitates at different locations of samples quenched by room-temperature water were observed.The results indicate t... |
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| Keywords: | 7050 Al alloy Jominy end quench quenching media hardenability |
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