az80镁合金挤压工艺研究本科论文 .doc

AZ80镁合金挤压工艺研究 学 院 名 称 ： 材料工程学院 专 业： 材料成型及控制工程  AZ80镁合金挤压工艺研究 摘 要：AZ80镁合金材料的组织和性能的分析研究。研究所方法是先将镁合金铸锭通过加热到410℃保温12h的均匀化退火的方式处理一下，然后通过热挤压的方式加工成棒料，最后再进行适当的固溶跟时效热处理，再在进行了系统的力学性能测试和金相组织分析的基础上，选择出最佳的挤压工艺相关参数。经过系统的研究，获得AZ80镁合金材料最佳热处理工艺为：380℃固溶2小时+170℃时效18h。 关键词：AZ80 magnesium alloy extrusion technology was studied Abstract：This paper conducted a series of application research, mainly including: the choice of AZ80 magnesium alloy materials and processing technology, the analysis and research of the organization and performance of AZ80 magnesium alloy materials. Research method is to magnesium alloy ingot by heated to 410 ℃ heat preservation of 12 h of homogenizing annealing treatment, then through the way of hot extrusion processing into a bar, and then make the appropriate solid solution and aging treatment, and then in the system of mechanical properties testing and microstructure analysis, on the basis of choosing the best extrusion process related parameters. Through systematic study, to obtain the best heat treatment process of AZ80 magnesium alloy material is: 380 ℃ solution 2 hours 18 h + 170 ℃ ageing. Keywords：Solid solution aging; Heat treatment; Organizations; The intensity of  目 录 第1章 ………………………………………………………1 1.1挤压成形工艺研究……………………………………………………1 1.1.1挤压成形的定义……………………………………………………….1 1.1.2挤压成形的原理……………………………………………………….1 1.1.3金属挤压成形的特点……………………………………………………2 1.1.4金属挤压成形技术发展的现状……………………………………………金属挤压技术的发展前景………………………………………………1.2镁和镁合金的介绍…………………………………………………3 1.2.1镁的介绍………………………………………………………….3 1.2.2镁合金的介绍…………………………………………………………3 1.2.3镁合金的分类…………………………………………………………3 1.2.4镁合金的特点…………………………………………………………4 1.2.5镁合金的发展方向………………………………………………….5 第2章 ………………………………………………………7 2.1实验材料……………………………………………………………7 2.2正挤压实验…………………………………………………………7 2.3热处理实验…………………………………………………………8 2.3.1实验目的………………………………………………………….8 2.3.2实验设备…………………………………………………………….9 2.3.3热处理的类型及工艺参数……………………………………………..9 2.4金相实验……………………………………………………………10 2.4.1实验目的………………………………