NDLI: Active metal brazing and characterization of brazed joints in titanium to carbon-carbon composites

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Active metal brazing and characterization of brazed joints in titanium to carbon-carbon composites

Content Provider	NASA Technical Reports Server (NTRS)
Author	Singh, M. Asthana, R. Morscher, G. N. Shpargel, T. P.
Copyright Year	2006
Description	The Ti-metal/C-C composite joints were formed by reactive brazing with three commercial brazes, namely, Cu-ABA, TiCuNi, and TiCuSiI. The joint microstructures were examined using optical microscopy and scanning electron microscopy (SEM) coupled with energy dispersive spectrometry (EDS). The results of the microstructure analysis indicate solute redistribution across the joint and possible metallurgical bond formation via interdiffusion, which led to good wetting and spreading. A tube-on-plate tensile test was used to evaluate joint strength of Ti-tube/ C-C composite joints. The load-carrying ability was greatest for the Cu-ABA braze joint structures. This system appeared to have the best braze spreading which resulted in a larger braze/C-C composite bonded area compared to the other two braze materials. Also, joint loadcarrying ability was found to be higher for joint structures where the fiber tows in the outer ply of the C-C composite were aligned perpendicular to the tube axis when compared to the case where fiber tows were aligned parallel to the tube axis.
File Size	651861
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20060005030
Archival Resource Key	ark:/13960/t0ms8pr4d
Language	English
Publisher Date	2006-01-01
Access Restriction	Open
Subject Keyword	Metals And Metallic Materials Carbon-carbon Composites Scanning Electron Microscopy Spectrometers Metal Joints Tensile Tests Titanium Brazing Microstructure Soldered Joints Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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