• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Key Engineering Materials >A High Notch Toughness Agglomerated Flux for Submerged Arc Welding of Pipeline Steel
【24h】

A High Notch Toughness Agglomerated Flux for Submerged Arc Welding of Pipeline Steel

机译：管道钢埋弧焊用高缺口韧性团聚焊剂

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

By using the mathematical uniform design, a new agglomerated flux for high speed and multi-arc submerged arc welding (SAW) has been developed in this paper, which performs excellently in welding process, and the effects of flux composition on the welding characteristics is analyzed as well. The mechanical tests show that the weld metal obtained in SAW with this flux exhibits high toughness at low temperature, and the other mechanical properties of the weld metal also satisfy the technical specifications for the West to East Pipeline Project in China. The microstructures of the weld metal are also examined. Both optical and TEM microphotoes demonstrate that the weld consists mainly of small-sized and uniformly distributed acicular ferrite. These microstructures can effectively prevent the initiation and propagation of micro cracks, resulting in high notch toughness of the weld metal at low temperature.
机译：通过数学统一设计，开发了一种新的用于高速多弧埋弧焊（SAW）的聚集焊剂，该焊剂在焊接过程中表现出色，并分析了焊剂成分对焊接性能的影响。也一样力学测试表明，用这种焊剂在SAW中获得的焊缝金属在低温下表现出高韧性，并且焊缝金属的其他机械性能也符合中国西气东输工程的技术规格。还检查了焊接金属的微观结构。光学和TEM显微照片均表明，焊缝主要由小尺寸且均匀分布的针状铁素体组成。这些微结构可以有效地防止微裂纹的产生和扩展，从而在低温下提高焊缝金属的缺口韧性。

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