Diffusion Bonding of Ti6A14V using Encapsulation-free Hot Isostatic Pressing
Vacuum brazing was used as a pre-HIP (Hot Isostatic Pressing) process to seal the periphery of Ti6A14V bonding couples so that the parts can afterwards be diffusion-bonded using encapsulation-free HIP. The microstructures of the braze-affected zone and of the bonded interface were studied using analytical scanning electron microscopy. It was shown that the braze-affected-zone can be restricted to an area of a few hundred microns in dimensions whilst using a relatively wide processing window. A homogeneous microstructure was retained in the main part of the bonds, which was not influenced by the brazing process. The tensile and fatigue properties of bonded samples were assessed and compared with those of the bulk starting material. The present study suggests that vacuum brazing can be used as an economic substitute for encapsulation before HIP diffusion bonding of titanium components.
Diffusion bonding brazing hot isostatic pressing Ti6Al4 V
Z. Wu J. Mei W Voice Steve Beech X Wu
College of Engineering and Physical Sciences, The University of Birmingham, Edgbaston,Bl5 2TT,UK Rolls-Royce,EltonRd,Derby,UK.
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1612-1615
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）