研究了焊丝中添加孕育剂Ti,Zr对2219 Al-Cu合金MIG焊缝组织和性能的影响.实验结果表明,当焊丝中Ti,Zr添加量分别为0.26%和0.33%时,整个焊缝形成了全部等轴晶组织,并且沿晶界分布的共晶相的数量减少,显著提高了焊缝金属的抗拉强度和延伸率.在焊缝金属中,Ti,Zr以金属间铝化物质点的形式提供非均质形核的核心,促进了均匀、细小的等轴晶粒的形成.
参考文献
| [1] | Chinese Welding Society. Welding Handbook (Vol 2). Beijing: China Machine Press, 2001:520(中国焊接学会编.焊接手册(第二卷).北京:机械工业出版社,2001:520) |
| [2] | Janaki Ram G D, Mitra T K, Olson D L. Mater Sci Eng,2000; 276A: 48 |
| [3] | Murty B S, Kori S A, Chakraborty M. Int Mater Rev,2002; 47(1): 3 |
| [4] | Ganaha T, Pearce B P, Kerr H W. Metall Trans, 1980;11A: 1351 |
| [5] | Mousavi M G, Cross C E, Grong O. Sci Technol Weld Join, 1999; 4(6): 381 |
| [6] | Yunjia H, Frost R H, Olson D L, Edwards G R. Weld J,1989; 68(7): 280s |
| [7] | Norman A F, Hyde K, Costello F, Thompson S, Birley S,Prangnell P B. Mater Sci Eng, 2003; A354:188 |
| [8] | Guo X M, Yang C G, Qian B N, Chang Y L, Zhang H Y.Trans Chin Welding Inst, 2004; 25(4): 5(国旭明,杨成刚,钱百年,常云龙,张洪延.焊接学报,2004;25(4):5) |
| [9] | Yunjia H, Dalu G, Zhixiong S. Conference on Proceedings of the Aluminum-Lithium III. 1986; 1215 |
| [10] | Reddy G M, Gokhale A A, Prasad K S, Prasad Rao K.Sci Technol Weld Join, 1998; 3(4): 208 |
| [11] | Kou S, Le Y. Weld J, 1986; 65(12): 305s |
| [12] | Dvornak M J, Frost R H, Olson D L. Weld J, 1989; 68(10):327s |
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%