Microstructures and properties of transient liquid phase diffusion bonded joints of Ni3Al-base superalloy
来源期刊：中国有色金属学报(英文版)2001年第3期
论文作者：李晓红 毛唯 程耀永
文章页码：405 - 408
Key words：Ni3Al-base superalloy; TLP diffusion bonding; stressrupture property
Abstract: An investigation of transient liquid phase (TLP) diffusion bonding of a Ni3Al-base directionally solidified superalloy, IC6 alloy, was presented. The interlayer alloy employed was Ni-Mo-Cr-B powder alloy. The results show that the microstructure of the TLP diffusion bonded joints is a combination of γ solid solution (or a γ+γ′structure) and borides. With the bonding time increasing, the quantity of the borides both in bonding seam and adjacent zones is gradually reduced, and the joint stress-rupture property is improved. The obtained stress-rupture property of the TLP bonded joints is on a level with the transverse property of IC6 base materials.
