...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Investigation of the welding parameter dependent microstructure and mechanical properties of friction stir welded pure copper
【24h】

Investigation of the welding parameter dependent microstructure and mechanical properties of friction stir welded pure copper

机译：搅拌摩擦焊接纯铜的焊接参数相关组织和力学性能研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The process window for friction stir welding of commercially pure copper was obtained, which included a welding speed ranged from 200 to 800mm/min, a rotation speed ranged from 400 to 1200rpm and an applied load ranged from 1000 to 1500 kg. In the stir zone, a remarkably refined microstructure with average grain size of 3.8 μm can be obtained by increasing the applied load to 1500 kg. In addition, higher applied load can promote the formation of dislocation cells, while annealing twins and dislocation entanglements are easy to form under lower applied load. The mechanical properties of the joints can be improved further by increasing the applied load, rather than only decreasing the rotation speed at lower applied load. The mechanism of the mechanical property changes in the copper joints were put forward and clarified from the viewpoint of microstructural evolution.
机译：获得了用于商业纯铜的摩擦搅拌焊接的工艺窗口，该工艺窗口的焊接速度为200至800mm / min，旋转速度为400至1200rpm，施加的载荷为1000至1500 kg。在搅拌区，通过将施加的载荷增加到1500 kg，可以得到平均粒度为3.8μm的细微组织。另外，较高的施加载荷可以促进位错单元的形成，而在较低的施加载荷下易于形成孪晶退火和位错缠结。通过增加施加的载荷，而不是仅在较低的施加载荷下降低转速，可以进一步改善接头的机械性能。从微观组织演变的角度提出并阐明了铜接头力学性能变化的机理。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号