Electron beam brazing K465 Ni-based superalloy with Ni-based filler metal

摘要：

Ni-based superalloy K465 is brazed withⅠand Ⅱ self-made filler metal by vacuum electron beam brazing (VEBB). In process of VEBB, effects of processing primary parameters on tensile strength of joints are investigated. Microstructure of the brazed joint with Ⅱ filler metal is studied by means of scanning electron microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and X-ray diffraction (XRD). The results show that the structure of brazed seam consists of a large amount of Ni-based γ solid solution, Ni3Al (γˊ), Ni3B, Ni2Si, and Ni3Si. The maximum tensile strength of the joint is 760MPa when the beam current of welding is 2.7mA, heating time is 200s and focused current is 1800mA.

关键词： Electron beam brazing Interfacial reaction product Tensile strength

作者: Wang Gang Wu Linzhi Zhang Binggang Feng Jicai

作者单位: State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, China Center for Composite Materials, Harbin Institute of Technology, Harbin, China

会议类型: 国际会议

会议名称: 第二届计算机辅助焊接工程国际学术研讨会(CAWE2012)

会议地点: 济南

会议语种:英文

页码: 1-6

在线出版日期: 2012-08-24（万方平台首次上网日期，不代表论文的发表时间）