利用感应电磁场对焊接过程热与物质流动作用,改善异种金属摩擦焊接头的组织与性能.采用光学金相、扫描电镜及室温拉伸实验与对比分析的方法,研究了外加电磁场对弱磁性材料TC4钛合金与LD10铝合金摩擦焊接头焊合区的显微组织、主要合金元素扩散行为及室温力学性能的影响.结果表明:外加电磁场作用使TC4钛合金与LD10铝合金摩擦焊接头铝合金侧动态再结晶区宽度增大;同时,感应电磁场通过影响摩擦副合金材料内部电子密度状态等,促进了摩擦焊接过程中主要合金元素Al和Ti在焊合区的扩散过程,并且提高了TC4钛合金与LD10铝合金摩擦焊接头的拉伸强度.其中,外加电磁场在顶锻保压阶段的影响更为明显.
参考文献
| [1] | Campbell J;Fahmy Y;Conrad H .Influence of an electric field on the plastic deformation of fine-grained Al2O3[J].METALLURGICAL AND MATERIALS TRANSACTIONS A:PHYSICAL METALLURGY AND MATERIALS SCIENCE,1999,A30(11):2817-2823. |
| [2] | Liu W.;Zheng YK.;Cui JZ.;Liang KM. .Study of the diffusion of Al-Li alloys subjected to an electric field[J].Journal of Materials Science,1998(4):1043-1047. |
| [3] | Cao W D;Lu X P;Sprecher A F;Conrad H .Superplastic deformation behavior of 7475 aluminum alloy in an electric field[J].MATERIAL SCIENCE AND ENGINEERING,1990,A129:157-166. |
| [4] | Conrad H;Karam N;Mannan S .Effect of prior cold work on the influence of electric current pulses on the recrystallization of copper[J].Sripta Metallurgica,1984,18(03):275-280. |
| [5] | Conrad H;Guo Z;Sprecher A F .Effect of an electric field on the recovery and recrystallization of Al and copper[J].Sripta Metallurgica,1989,23(06):821-823. |
| [6] | 刘兵,陈铮,王永欣,王西宁.电场对含铈铝锂合金的改性作用及其机制[J].中国稀土学报,2001(01):58-61. |
| [7] | 陈铮,刘兵,王永欣,魏齐龙.电场处理的强化晶界效应与唯象理论[J].稀有金属材料与工程,2001(05):331-334. |
| [8] | 傅莉,杜随更,介万奇.电场对LY12CZ合金摩擦焊缝组织微观结构与力学性能的影响[J].中国有色金属学报,2003(02):305-310. |
| [9] | 代威,傅正义,卢北平,张丰收.电磁场在材料科学中的应用[J].国外建材科技,2004(03):7-10. |
| [10] | 李世辉,张长春,于妍,迟剑峰.塑料成型加工过程中场致作用的应用研究[J].工程塑料应用,2004(03):71-73. |
| [11] | Tseng C F;Savage W F .Effect of arc oscillation[J].WELDING JOURNAL,1971,50(11):77-86. |
| [12] | Dennin G .Inductive friction melding[J].Welding and Cutting Journal,1974,26(10):408-409. |
| [13] | John J. Gilman .Electro-plastic effect in semiconductors[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(2):272-275. |
| [14] | Gu X M;Liu W;Liang M K .The effect of electric field on phase sepatation in glasses:a mode and experimental testing[J].Materials Science and Engineering A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2000,A278:22-26. |
| [15] | Y. V. Baranov .Effect of electrostatic fields on mechanical characteristics and structure of metals and alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(2):288-300. |
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%