目录
摘要······························································1 引言···························································2 一、实验目的·····················································3 二、实验设备··················································4 2.1、熔炼设备················································5 2.2、固溶处理、时效处理设备··············································6 2.3、硬度测试设备······················································7 2.4、金相试样制备及观察记录设备···········································8 三、实验原理·················································9 3.1、铝合金熔炼·····················································10 3.2、固溶处理和时效处理·············································11 3.3、硬度测定····················································12 四、工艺制定·····················································13 4.1、铝合金制备工艺····················································14 4.2、铝合金固溶处理、时效处理工艺·····································15 五、实验步骤··························································16 5.1铝合金制备······························································17 5.2热处理·································································18 5..3硬度测试·······························································19 5.4金相试样制备及组织拍照··················································20 六、实验数据及现象分析、处理·················································21 七、实验结论·································································22 参考文献····································································23
（可以根据自己写的删减）
摘要: 铝合金具有密度小、导热性好、易于成形和价格低廉等优点，已广泛应用于航空航天、交通运输、轻工建材等部门，是轻合金中应用最广、用量最多的合金。目前铝材的用量与范围仅次于钢铁，是第二大金属材料。航空工业中虽然钛合金及复合材料亦逐渐受到重视，但铝合金仍为目前使用最广泛的飞机结构用材。通过对铝合金的时效处理，来增强铝合金的强度、硬度，是一种常用的铝合金强化方法。同时探索铝合金的时效强化与温度、时间之间的关系。
引言：Al-Cu合金是常见的二元合金。在Al-Cu二元合金相图中，当Cu含量低于5.65%时，随着温度的降低，会从初相中析出第二相。正是因为这个特点的存在使得铝合金的弥散强化特点比较明显，所以可以通过人工时效的方法，设计方案来达到强化铝合金的目的。实验就是通过设计不同温度、不同时效时间来测定铝合金的时效强化的特点。同时对于铝基合金的制备有初步的了解，能够分析铝合金的组织和性能特点。
摘要和引言是你自己对这个实验的理解，到目前为止，我也不知道这里怎么写 才好
一、实验目的
（1）铝基合金材料成分及组织设计，满足工件的基本要求。 （2）设计铝合金熔炼制备工艺。 （3）设计铝合金固溶+时效的工艺。
（4）测试铝合金的性能以及铝合金金相组织分析。
（5）通过实验，掌握铝合金熔炼的基本方法，铝合金热处理的工艺参数，以及性能测试与金相组织分析技术。
（我不是很明确是否根据任务书上面的 “工件要求”。。这里要自己理解一下）
二、实验设备
2.1熔炼设备
SG2-5-12坩埚电阻炉
浇铸模（可自由脱模式） 热电偶及控温仪表 铝块 50%Al-Cu合金
天平 坩埚 扒灰棒 抱钳
2.2 固溶处理、时效处理设备 箱式电阻炉 控温设备
UJ33D-2型数字电位差计 细铁丝 水桶
2.3硬度测试设备 HB-3000C布氏硬度机 读数显微镜
2.4金相试样制备及观察记录设备
砂纸（120# 180# 240# 320# 400# 600# 800#） 预磨机 抛光机 玻璃板 锉刀
Cr2O3抛光液 5%HF溶液 无水乙醇 脱脂棉 热吹风 金相显微镜 外接数码成像系统 计算机
（遗漏的可以自己添上）
三、实验原理 3.1铝合金熔炼
铝合金熔炼其工艺参数和规程如下： （1）熔炼温度
熔炼温度越高，合金化程度越完全，但熔体氧化吸氢倾向化越大，铸锭形成粗晶组织和裂纹的倾向性越大。通常，路合金的熔炼温度都控制在合金液相线温度以上50~100℃的范围内。从图3.1的Al-Cu相图可知，Al-5%Cu的液相线温度大致为660~670℃，因此，他的熔炼温度应定在710~760℃之间。浇筑温度为730℃左右。
图3.1 铝铜二元相图
（2）熔炼时间
熔炼时间是指从装炉升温开始到熔体出炉为止，炉料以固体和液体形式停留于熔炉中的总时间。熔炼时间越长，则熔炉生产率越低，炉料