以AZ31B镁合金为研究对象, 采用TIG焊方法进行焊接, 考察了焊接热循环对镁合金的硬度的影响.测量、比较、分析了焊缝、热影响区、母材的硬度.结果表明, 表面处理过程(研磨、抛光、侵蚀液体及工艺等)对镁合金硬度的影响很大, 直接影响到"焊接工艺-硬度"之间关系.与母材相比, 由于焊缝的冷却速率高, 组织细小, 硬度较高.热影响区的组织虽比母材粗大, 但硬度与母材相近.焊缝区不同部位的硬度存在一定差异.
参考文献
[1] | 纯镁和AZ31镁合金的电子束焊接性能[J].稀有金属快报,2003(04):25-26. |
[2] | 苗玉刚,刘黎明,赵杰,于德凯.变形镁合金熔焊接头组织特征分析[J].焊接学报,2003(02):63-66. |
[3] | 郑荣,林然.AZ31B镁合金薄板TIG焊接[J].焊接,2003(04):43-44. |
[4] | 国翔 .镁合金的焊接[J].轻金属,2001,39(12):5. |
[5] | Asahina T;Tokisue H .Electron beam weldability of pure magnesium and AZ31 magnesium alloy[J].Materials Transactions,2001,42(11):2345. |
[6] | Munitz A.;Cotler C. .Electron Beam Welding of Magnesium AZ91D Plates[J].Welding Journal,2000(7):(202-s)-(208-s). |
[7] | S.E SU;J.C. HUANG;H.K. LIN .Electron-Beam Welding Behavior in Mg-Al-Based Alloys[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2002(5):1461-1473. |
[8] | Lehner C;Reinhart G .Welding of die-casted magnesium alloys for production[J].Journal of Laser Applications,1999,11(05):206. |
[9] | Sanders P G;Keske J S;Leong K H et al.High power Nd∶YAG and CO2 laser welding of magnesium[J].Journal of Laser Applications,1999,11(02):96. |
[10] | Hwan S;Park C;Sato Y S et al.Effect of micro-texture on fracture location in friction stir weld of Mg alloy AZ61 during tensile test[J].Scripta Materialia,2003,49:161. |
[11] | Hwan S;Park C;Sato Y S et al.Basal plane texture and flow pattern in friction stir weld of magnesium alloy[J].Metallurgical and Materials Transactions,2003,34A(04):987. |
[12] | Won-Bae Lee;Jong-Woong Kim;Yun-Mo Yeon .The Joint Characteristics of Friction Stir Welded AZ91D Magnesium Alloy[J].Materials transactions,2003(5):917-923. |
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%