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摘要：异步轧制是一种具有细化晶粒、降低轧制压力的轧制技术。本毕业论文研究了Al1050工业纯铝异步轧制后显微组织与力学性能的变化。采用不同路径轧制，不同温度退火后，使用各种实验仪器对纯铝进行了拉伸实验、硬度测试，显微组织的观察。从而研究了退火温度和轧制方式对显微组织、力学性能的影响。实验结果表明：异步轧制中TD晶粒细化程度最大，UD晶粒细化程度最小，但不同方式轧制的板料金相晶粒组织变化并不明显；异步轧制的抗拉强度随着轧制路径的改变而变化，且TD方式的抗拉强度最大，RD方式最小；无论在什么退火温度下，UD轧制方式所得的硬度都是最低的，而TD轧制方式所得硬度却是最高的。7049
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关键词：退火温度；异步轧制；显微组织；力学性能
Effect of rolling path on the microstructure and mechanical properties of Aluminum by asymmetric rolling
Abstract: Asynchronous rolling is a technique of grain refinement to reduce rolling pressure rolling. Microstructure and mechanical properties of 1050 commercial purity Aluminum after asymmetric and symmetric rolling have been investigated. Rolling with the different paths, annealing and different temperature, using a variety of laboratory instruments carried out tensile tests, hardness test, microstructure observation on aluminum. Thus studied the annealing temperature and rolling method on microstructure, mechanical properties. The test showed that the Transverse Direction effect of grain refinement and the micro hardness increased with the increase of the deformation is The most serious, the slightest is the Unchanged Direction, but in different ways rolled sheet metallurgical grain structure did not change significantly; the tensile strength gradually decreased with rolling path change to changed, maximum tensile strength of TD methods, minimum tensile strength of UD methods; Whatever the annealing temperature, maximum hardness of TD methods, minimum hardness of UD methods.
Keywords: annealing temperature; asymmetrical rolling; microstructure; mechanical properties
目录
1 文献综述 1
1.1 Al1050工业纯铝的概况 1
1.1.1 Al1050工业纯铝的基本性质 1
1.1.2 Al1050工业纯铝的生产工艺 1
1.1.3 Al1050工业纯铝的应用 2
1.2 异步轧制工艺 2
1.2.1 异步轧制概况 2
1.2.2 异步轧制原理 2
1.3 异步轧制技术的特点 5
1.3.1 异步轧制优点 5
1.3.2 异步轧制与同步轧制相比较其特点 5
1.3.3 异步轧制变形区的特征 6
1.4 异步轧制技术的发展 6
1.5 异步轧制技术制备超细晶材料 9
1.6 研究内容目的和意义 10
1.6.1 研究内容 10
1.6.2 研究目的和意义 12
2 实验材料和设备及过程 12
2.1 实验材料 12
2.2 实验设备 12
2.3 实验方案 15
2.3.1 实验流程 15
2.4 实验过程 16
2.4.1 轧制工艺制定 16
2.4.2 轧制 16
2.4.3 退火处理 17