| 喷射沉积超高强铝合金热变形摩擦行为研究 |
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| 引用本文： | 李振亮,任慧平,曹建刚,孙昊,陈伟,翟景. 喷射沉积超高强铝合金热变形摩擦行为研究[J]. 包头钢铁学院学报, 2009, 28(1) |
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| 作者姓名： | 李振亮 任慧平 曹建刚 孙昊 陈伟 翟景 |
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| 作者单位： | 李振亮,任慧平,曹建刚,孙昊,LI Zhen-liang,REN Hui-ping,CAO Jian-gang,SUN Hao(内蒙古科技大学,材料与冶金学院,内蒙古,包头,014010);陈伟,翟景,CHEN Wei,ZHAI Jing(中国兵器科学研究院,宁波分院,浙江,宁波,315103) |
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| 基金项目： | 内蒙古自治区科学基金，内蒙古高等学校科学研究项目 |
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| 摘 要： | 以喷射沉积Al-Zn-Mg-Cu-Zr-Sc-Ni铝合金为研究对象,分别在370和420℃研究4种不同润滑条件下圆坏压缩的摩擦行为,并与DEFORM-3D的数值模拟结果相对比.研究表明,采用纯铝+石墨+机油为润滑剂试样的摩擦系数最小,其值只有未加润滑剂时试样的1/4~1/5左右.在圆环最外边缘区域容易产生"单鼓形"或裂纹,边界模型中的摩擦系数大小是影响模拟结果的关键因素.
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| 关 键 词： | 超高强铝合金 圆坯压缩 摩擦机理 数值模拟 喷射沉积 |
Study on friction coefficient in the compression at high temperatures of ultrahigh strength Al-Zn-Mg-Cu alloy produced by spray deposition |
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| LI Zhen-liang,REN Hui-ping,CAO Jian-gang,SUN Hao,CHEN Wei,ZHAI Jing. Study on friction coefficient in the compression at high temperatures of ultrahigh strength Al-Zn-Mg-Cu alloy produced by spray deposition[J]. Journal of Baotou University of Iron and Steel Technology, 2009, 28(1) |
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| Authors: | LI Zhen-liang REN Hui-ping CAO Jian-gang SUN Hao CHEN Wei ZHAI Jing |
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| Affiliation: | 1.Material and Metallurgy School;Inner Mongolia University of Science and Technology;Baotou 014010;China;2.Ningbo Branch;China Academy of Ordnance Science;Ningbo 315103;China |
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| Abstract: | Friction coefficients and lubricative mechanics of Al-Zn-Mg-Cu-Zr-Sc-Ni alloy produced by spray deposition were researched by means of ring compression and FEM simulation under four conditions at 370 ℃ and 420 ℃.Results show that the condition of friction interface is improved when alloy is lubricated by pure aluminum together with graphite and oil,while the frication coefficient is only 1/4～1/5 of those without lubrication.The cracks and single-drum bulging would be emerged easily in the outermost-edge of ... |
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| Keywords: | ultrahigh strength aluminum alloy ring-compression friction coefficient mechanism FEM simulation spray deposition |
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