Rao, P Rama and Majumdar, B and Bhatnagar, A K and Muraleedharan, K (2018) Structural Properties of brazed Ti joint using Ti20Zr20Cu40Ni20 metallic glass ribbon as filler. Materials Research Express , 5 (6). Article No-065205. ISSN 2053-1591

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Abstract

In the present investigation, we present our results on characterization of Ti joints, brazed with metallic glass ribbons of Ti20Zr20Cu40Ni20 alloy. Initially, metallic glass ribbons were produced using a vacuum melt spinner and used as filler materials for vacuum brazing of two Ti alloy plates at 967 degrees C for period of 10 min. Field-Emission Scanning Electron Microscopy (FESEM), the as-spun ribbons showed fully amorphous structure when examined on both surfaces byXRDand also verified byTEM investigation. The brazing joint of two Ti-plates using the metallic glass ribbon was found to be very sound. FESEM characterization of the cross-sectioned brazing joint shows sub-micron size grains uniformly distributed in the matrix with brighter appearance. EDXanalysis revealed that the submicron grains are rich in Ti, while the matrix phase has Zr-enrichment. Back Scattered Electron (BSE) image also suggested substantial reaction of the brazing ribbon with Ti plates, whose typical lath microstructure is modified to nanostructured lamellar eutectic microstructure comprising of Ti-rich and Zr-enriched phases.

Item Type: Article
Subjects: Engineering Materials
Divisions: Director´┐Żs Secretariat
Depositing User: Bidhan Chaudhuri
Date Deposited: 29 Aug 2018 07:54
Last Modified: 29 Aug 2018 07:54
URI: http://cgcri.csircentral.net/id/eprint/4256

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