|
|
|
| EFFECTS OF ACTIVATING FLUXES ON TIG WELDING OF MAGNESIUM ALLOY |
| Liu L M; Zhang Z D; Shen Y; Wang L |
| 大连理工大学材料系 |
|
Cite this article:
Liu L M; Zhang Z D; Shen Y; Wang L. EFFECTS OF ACTIVATING FLUXES ON TIG WELDING OF MAGNESIUM ALLOY. Acta Metall Sin, 2006, 42(4): 399-404 .
|
|
|
Abstract Five single activating fluxes, TiO2, Cr2O3, CdCl2, ZnCl2, AlF3, were used to investigate the effects of the coating quantity of active fluxes on TIG welding penetration of magnesium alloy. The distribution of active flux element in the weld-pool was measured by EPMA analysis. The results showed that the above activating fluxes all increased the weld penetration. Each flux has a saturation point in penetration increment. The distributions of Mg and Al elements in the weld-pool are changed in different degrees after welding with flux. No active flux element was found in the weld-pool after welding with CdCl2 and ZnCl2 fluxes, however, the elements Ti, Cr and O were observed in the weld-pool after welding with TiO2 and Cr2O3 fluxes, By the analysis, the chlorides increased weld penetration mainly due to the effect of flux on the arc, the oxide increased weld penetration mainly due to the reaction of flux with the fusion zone metal.
|
|
Received: 09 June 2005
|
|
|
[1] Leinonen J I, Karjalainen L P. In: David S A, Vitek J M eds, Proc Snd Int Conf on Trends in Welding Research. Materials Park, USA: ASM International, 1989: 387
[2] Lucas W, Howse D. Weld Met Fabrica, 1996; 64: 11
[3] Gurevich S M, Zamkov V N, Kushirenko N A. Autom Weld, 1965; 18: 1
[4] Gurevich S M, Zamkov V N. Autom Weld, 1966; 19: 14
[5] Liu F Y, Yang C L, Lin S B, Wu L, Zhang Q T. Acta Metall Sin, 2003; 39: 661 (刘凤尧,杨春利,林三宝,吴林,张清涛．金属学报,2003; 39:661)
[6] Niagaj J. Weld Int, 2003; 17: 257
[7] Pascal P, Jacques S. Mater Sci Forum, 2003; 426-432: 4087
[8] Bonnefois B, Coudreuse L, charles J. Weld Int, 2004; 18: 208
[9] Perry N, Marya S, Soutif E. In: Vitek J M, David S A, Johnson J A, Smartt H B, DebRoy T eds, Proc 5th Int Conf on Trends in Welding Research (ASM/AWS). Pine Mountain, Ga: ASM International, 1998: 520
[10] Middel W, Den Ouden G. In: Vitek J M, David S A, Johnson J A, Smartt H B, DebRoy T eds, Proc 5th Int Conf on Trends in Welding Research (ASM/AWS). Pine Mountain, Ga: ASM International, 1998: 394
[11] Marya M, Edwards G R. Weld J, 2002; 81: 291-S
[12] Marya M. Weld World, 2002; 46: 7
[13] Zhang Z D, Liu L M, Shen Y, Wang L. Chin J Nonferr Met, 2005; 15: 912 (张兆栋,刘黎明,沈勇,王来．中国有色金属学报,2005; 15:912)
[14] Zhang Z D, Liu L M, Wang L. Trans Chin Weld Inst, 2004; 25: 55 (张兆栋,刘黎明,王来．焊接学报,2004;25:55)
[15] Toshikatsu A, Tokisue H. J Jpn Inst Light Met, 1995; 45: 70 (朝比奈敏胜,时末光．轻金属, 1995;45:70)
[16] Boddy P J, Utsumi T. J Appl Phys, 1971; 42: 3369
[17] Saha M N. Philos Mag, 1920; 40: 272
[18] Lu S P, Fujii H, Sugiyama H, Tanaka M, Nogi K. Mater Trans, 2002; 43: 2926
[19] Wark K. Thermodynamics. 3rd ed, New York: McGrawHill, 1977: 833 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
