| Mn对铸造多元Zn-38Al-2.2Cu合金组织及磨损性能的影响 |
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| 引用本文： | 许超,司乃潮,许亮,万浩,李萌. Mn对铸造多元Zn-38Al-2.2Cu合金组织及磨损性能的影响[J]. 有色金属工程, 2014, 4(1) |
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| 作者姓名： | 许超 司乃潮 许亮 万浩 李萌 |
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| 作者单位： | 江苏大学 材料科学与工程学院 江苏 镇江 212013,江苏大学 材料科学与工程学院 江苏 镇江 212013,江苏大学 材料科学与工程学院 江苏 镇江 212013,江苏大学 材料科学与工程学院 江苏 镇江 212013,江苏大学 材料科学与工程学院 江苏 镇江 212013 |
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| 基金项目： | 江苏省自然基金资助项目（BK2011524） |
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| 摘 要： | 高铝锌基合金在耐磨零件方面应用广泛,本文利用SEM、NIKONPIPHOT300金相显微镜、万能试验机、M-2000摩损试验机等试验手段,研究Mn元素添加量对铸造多元Zn-38Al-2.2Cu合金组织及性能的影响。结果表明,当Mn含量为0.2%晶粒明显细化,当Mn含量大于0.6%,出现大量枝状晶。随Mn含量的增加,合金的塑性,韧性逐渐降低。低载100N下作用下合金磨损量随Mn元素含量的增加而逐渐降低,重载900N下合金的磨损量呈现先减小后增大的趋势,Mn含量为0.6%时,合金具有较高的抗拉强度、硬度和较好的重载耐磨性能。
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| 关 键 词： | 锌铝合金 硬度 拉伸断口 耐磨性能 |
Effect of Mn on Structure and Properties of Zn-38Al-2.2Cu Alloy |
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| xuchao,sinaichao,xuliang,wanhao and limeng. Effect of Mn on Structure and Properties of Zn-38Al-2.2Cu Alloy[J]. Nonferrous Metals Engineering, 2014, 4(1) |
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| Authors: | xuchao sinaichao xuliang wanhao limeng |
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| Affiliation: | School of materials science and engineering, Jiangsu University,School of materials science and engineering, Jiangsu University,School of materials science and engineering, Jiangsu University,School of materials science and engineering, Jiangsu University,School of materials science and engineering, Jiangsu University |
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| Abstract: | he application of high aluminum of zn-based alloy in wear parts is very extensive. In this paper, the impacts of added Mn element on the structure and performance of casting diverse Zn-38Al-2.2Cu alloy are studied by using SEM, NIKON PIPHOT300, universal testing machine, M-2000wear testing machine. The results show that fine grain size can be observed with 0.2% Mn, and large number of dendritic grain appeared with 0.6%Mn or more. The ductility and toughness of alloy decreases with the increasing Mn Under 100N load, the wear amount of alloy decreases with the increasing Mn Under 900N load, the wear amount of the alloy showing first decreases and then increases. Higher tensile strength, hardness and better wear resistance of high loads of alloy can be obtained with 0.6% Mn. |
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| Keywords: | Zinc-aluminum alloy Hardness Fracture surface Wear resistance |
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