Effect of rotation speed on the microstructure and mechanical properties of dissimilar friction stir-welded copper/brass metals
Effect of rotation speed on the microstructure and mechanical properties of dissimilar friction stir-welded copper/brass metals
复制标题
转速对异种搅拌摩擦焊铜/黄铜金属显微组织和力学性能的影响
DOI：
10.1007/s00170-015-7792-9
复制
发表时间：
2015-09
影响因子：
3.4
通讯作者：
S. S. Dong
中科院分区：
文献类型：
--
作者：
J. C. Feng;W. X. He;Y. X. Huang;S. S. Dong
以 80 毫米/分钟的恒定焊接速度对不同的铜和黄铜金属进行搅拌摩擦焊接。转速为 1000 rpm 时，焊缝表面发现了坡口缺陷，转速为 1200 至 1600 rpm 时，成功获得了无缺陷焊缝。铜的母材由等轴α相组成，而黄铜的母材由含有一定孪晶的粗大α相和β'相组成。洋葱圈的形成是由于搅拌摩擦焊过程中搅拌区机械混合引起金属塑性流动。焊接接头黄铜侧热影响区晶粒尺寸较母材细化，而铜侧则完全相反。随着转速的增加，所有区域的晶粒尺寸都增加。焊缝的硬度高于母材。随着转速的增加，所有无缺陷焊接接头的拉伸性能变化不大，并且在拉伸试验中，所有无缺陷焊接接头均在焊接接头最低硬度区域断裂。
Dissimilar copper and brass metals were friction stir welded at a constant welding speed of 80 mm/min. Groove defects were found on the weld surface with a rotation speed of 1000 rpm, and defect-free welds were successfully obtained with rotation speeds ranging from 1200 to 1600 rpm. The base material of copper consisted of an equiaxed α phase, while that of brass was characterized by a coarse α phase containing certain twins and a β′ phase. Onion rings were developed due to the plastic flow of metal induced by mechanical mixing in the stir zone during friction stir welding. The grain size in the heat-affected zone was refined compared with that in the base material at the brass side of the welded joint, while the situation was completely the opposite for the copper side. With increasing rotation speed, grain size in all zones increased. The weld exhibited higher hardness than the base material. There is little change in tensile properties of all the defect-free welded joints with increasing rotation speed, and all the defect-free welded joints were fractured in the lowest hardness region of the welded joint during tensile tests.
登录
查看更多内容
影响因子：
1.1
作者：
C. Meran;V. Kovan
通讯作者：
C. Meran;V. Kovan
DOI：
10.1007/s00170-013-5480-1
发表时间：
2014-03
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
--
作者：
A. Emamikhah;A. Abbasi;Ali Atefat;M. K. B. Givi
通讯作者：
A. Emamikhah;A. Abbasi;Ali Atefat;M. K. B. Givi
影响因子：
8.4
作者：
M. Moghaddam;R. Parvizi;M. Haddad-Sabzevar;A. Davoodi
通讯作者：
M. Moghaddam;R. Parvizi;M. Haddad-Sabzevar;A. Davoodi
DOI：
10.1016/j.msea.2010.07.030
发表时间：
2010-10
影响因子：
6.4
作者：
Yufeng Sun;H. Fujii
通讯作者：
Yufeng Sun;H. Fujii
DOI：
10.1002/9781118985960.meh104
发表时间：
2015-02
期刊：
--
影响因子：
--
作者：
K. Kundig;R. Weed
通讯作者：
K. Kundig;R. Weed