| 一种适用于通讯器材的铝锰合金开发研究 |
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| 引用本文： | 刘立,刘炳.一种适用于通讯器材的铝锰合金开发研究[J].中国材料科技与设备,2011(4):77-79. |
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| 作者姓名： | 刘立 刘炳 |
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| 作者单位： | [1]中国电信股份有限公司乌鲁木齐分公司,新疆乌鲁木齐830008 [2]新疆大学机械工程学院,新疆乌鲁木齐830047 |
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| 摘 要： | 测试了不同锰含量Al—Mn合金的硬度和冲击韧性，分析了锰含量对Al—Mn合金断口形貌特征及断裂形式的影响。结果表明：随着锰含量的增加Al—Mn化合物数量增加，Al—Mn合金铸态硬度提高，冲击韧性降低；随着锰含量的增加Al—Mn化合物形态由细变粗，由长变短，由头部圆形转变具有尖角形块状，材料的冲击韧性急剧下降。随着锰含量的增加Al—Mn合金断口形貌由塑性断裂向准解理断裂、脆性断裂特征变化。
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| 关 键 词： | 冲击韧性 金相组织 断口形貌 |
A Suitablefor Communication Equipment Development Research of AI--Mn alloy |
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| LIUli,LIUBing.A Suitablefor Communication Equipment Development Research of AI--Mn alloy[J].Chinese Materials Science Technology & Equipment,2011(4):77-79. |
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| Authors: | LIUli LIUBing |
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| Affiliation: | (l. China telecom company urumqi branch, Xin]iang, ULumqi, 830008, China; 2. College of Mechanical Engineering, Xinjiang University, Xinjiang, ULumqi, 830047, China) |
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| Abstract: | The hardness and impact toughness of Al -- Mn alloy with different Mn content were measured, the effects of Mn content on breaking form and the characteristie of fracture morphology were analyzed. The results show that, with the increase of Mn content, the quantity of Al - Mn compound increases, as--cast hardness improves and impact toughness decreased, at the same time the form of Al -- Mn compounds changes from thin to wide, from long to short and from round to tip. the fracture morphology of Al -- Mn compounds changes from plastic to quasi -- cleavage and brittle fracture. |
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| Keywords: | Impact toughness Metallographic organization Fracture morphology |
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