对10mm厚度的7022铝合金进行了搅拌摩擦焊接,获得表面光滑的焊接接头,并通过X射线检测焊缝无裂纹和气孔.研究该搅拌摩擦焊接头不同区域的显微组织特征,并通过拉伸、冲击和硬度试验分析了焊接接头的力学性能.结果表明,焊缝处组织为细小均匀的等轴晶粒;在搅拌头转速为400r/min,焊接速度为100mm/min时焊接接头的抗拉强度、屈服强度均比母材高;焊接接头的冲击韧性比母材高;焊接接头显微硬度比母材稍低,焊接接头具有良好的力学性能.
参考文献
| [1] | Kostka A;Coelho R S;dos Santos J et al.[J].Scripta Materialia,2009,60:953-956. |
| [2] | Liechty B C;Webb B W .[J].International Journal of Machine Tools and Manufacture,2008,48:1474-1485. |
| [3] | 郭晓娟,李光,董春林,栾国红.1420铝锂合金搅拌摩擦焊接力学性能[J].焊接学报,2009(04):45-48. |
| [4] | A. Squillace;A. De Fenzo;G. Giorleo .A comparison between FSW and TIG welding techniques: modifications of microstructure and pitting corrosion resistance in AA 2024-T3 butt joints[J].Journal of Materials Processing Technology,2004(1):97-105. |
| [5] | CHEN Kang-hua;HUANG Lan-ping .Strengthening-toughening of 7xxx series high strength aluminum alloys by heat treatment[J].Transactions of Nonferrous Metals Society of China,2003(3):484-490. |
| [6] | M.J. Jones;P. Heurtier;C. Desrayaud .Correlation Between Microstructure and Microhardness in a Friction Stir Welded 2024 Aluminium Alloy[J].Scripta materialia,2005(8):693-697. |
| [7] | Kim Dongun;Badarinarayan H;Kim J H et al.[J].Metals and Materials International,2010,16(02):327. |
| [8] | 周鹏展,钟掘,贺地求.7A52铝合金厚板搅拌摩擦焊[J].中国有色金属学报,2006(06):964-969. |
| [9] | JOEL J. DONOHUE .THE FRICTION WELDING ADVANTAGE[J].Welding Journal,2001(5):30-34. |
| [10] | Mishra R S;Ma Z Y .[J].Materials Science and Engineering,2005,50(1-2):1-78. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%