• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Development of Pulsed Current Arc Welding to Preclude Carbide Precipitates in Hastelloy X Weldment Using ERNiCr-3
【24h】

Development of Pulsed Current Arc Welding to Preclude Carbide Precipitates in Hastelloy X Weldment Using ERNiCr-3

机译：使用ERNICR-3，脉冲电流弧焊脉冲电弧焊接以排除碳化物沉淀物沉淀物

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

In this study, gas tungsten arc (GTA) and pulsed current gas tungsten arc (PCGTA) welding on Hastelloy X were performed using ERNiCr-3. The welded plates are free from the porosity, inclusion, liquation cracks, and hot cracks. The weld bead profile shows a lower bead width in PCGTA than GTA weldment. The segregations of Cr, Mo, Nb, and Ti were identified in GTA with the development of Fe3Mo3C (M6C), Fe2MoC (M3C), Cr23C6, Cr2Ti, Ni8Nb phases. While in PCGTA, Nb and Ti segregations alone were observed with the formation of phases like Ni3Ti, Cr2Ti, Ni8Nb, respectively. The presence of gamma prime precipitate (Ni3Ti) observed in PCGTA improved the ultimate tensile strength (UTS) by 8.56% compared to GTA. The UTS and ductility were found inferior in both the weldments when compared to the base metal. This is due to the precipitation of Ni8Nb phase and the existence of Cr2Ti phase, respectively. The PCGTA weldment also shown improved microhardness by 12.21% and impact energy by 9.78% compared to GTA, respectively. The refined crystallite size and precluded carbide precipitates in PCGTA are responsible for the enhanced properties.
机译：在本研究中，使用ERNICR-3进行摇滚弧（GTA）和脉冲电流钨弧（PCGTA）焊接在哈斯泰洛金X上进行焊接。焊接板不含孔隙率，包容物，液化裂缝和热裂缝。焊缝轮廓显示PCGTA的较低珠宽度而不是GTA焊接。在GTA中鉴定CR，Mo，Nb和Ti的偏析，随着Fe3MO3C（M6C），Fe2MoC（M3C），Cr23C6，Cr2Ti，Ni8NB相。在PCGTA中，单独使用Ni3Ti，Cr2Ti，Ni8Nb等相位观察单独的Nb和Ti偏析。与GTA相比，在PCGTA中观察到的γ丸沉淀物（Ni3TI）的存在将极限拉伸强度（UTS）提高了8.56％。与基础金属相比，两个焊接中的UTS和延展性都被发现。这是由于Ni8NB相的沉淀和CR2TI相的存在。与GTA相比，PCGTA焊接也将微硬度的改善12.21％，并冲击能量为9.78％。 PCGTA中精制的微晶尺寸和排尿碳化物沉淀物负责增强的性质。

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