文档介绍：镁合金搅拌摩擦焊缝组织与性能研究
摘要:通过对镁合金以及其焊接方法的研究,综述了镁合金的性能、成分、运用和特点,以及镁合金的焊接性能。介绍了搅拌摩擦焊,对比了镁合金的搅拌摩擦焊和镁合金的其他焊接方法,说明搅拌摩擦焊的优缺点。分析了镁合金焊接特点、影响焊接性能的主要因素、优缺点,通过金相观察、电镜扫描和一些硬度试验等分析了这几组试样的组成成分,以及对比各组式样焊缝的好坏,总结出焊缝成型好坏的原因,并分析影响镁合金搅拌摩擦焊焊接性能的参数,总结了镁合金搅拌摩擦焊的质量、技术特点和研究方法以及展望未来的发展情况。
关键词:镁合金;搅拌摩擦焊;微观组织
毕业设计说明书(论文)外文摘要
Title Friction Stir Welding Seam Magnesium Microstructure
And Properties Research
Abstract:
Through its welding method of magnesium alloy and the research , For magnesium alloys are reviewed in this performance, composition, use and characteristics, and magnesium alloy welding performance . Friction stir welding is introduced , Contrast the friction stir welding of magnesium alloys and other welding methods of magnesium alloys , Explain the advantages and disadvantages of the friction stir welding . Analysis the magnesium alloy welding characteristics, the main factors affect welding performance, advantages and disadvantages . Through the metallographic observation, observed by scanning electron microscope (SEM) and some hardness testing analyzes the sets of ponents . And contrast the stand or fall of each style weld . Summarizes the weld moulding stand or fall reasons . And analysis the Influence of friction stir welding properties magnesium alloy of parameters . Summarizes the quality of friction stir welding of magnesium alloy , technical characteristics , research methods and looking to the future development situation .
Keywords: Magnesium alloys ; Friction stir welding; Microstructure
目录
前言 1
第一章绪论 2
镁及其合金 2
2
2
镁合金的应用 3
镁合金焊接的现状 6
6
7
8
本课题的意义与主要内容 14
14
15
第二章试验材料及试验方法 16
16
17
18
18
18
20
20
第三章搅拌摩擦焊焊接镁合金接头的微观组织分析 22
22
22
23
28
对实验参数为400r/min 100mm/min 的试样进行扫描电镜实验 28
对实验参