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Release : 2000
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Book Synopsis TRXRD Observations of Microstructural Evolution in Self-shielded Flux Cored Arc Weld Deposits by :
Download or read book TRXRD Observations of Microstructural Evolution in Self-shielded Flux Cored Arc Weld Deposits written by . This book was released on 2000. Available in PDF, EPUB and Kindle. Book excerpt: Inclusion formation and microstructure development in self-shielded flux cored arc welds has been investigated before [1,2]. Results showed that the liquid metal reactions could promote either Al2O3 or AlN formation depending upon the aluminum concentration in the weld metal. The residual aluminum that remained in solution was found to modify the solidification behavior of liquid to [delta]-ferrite and subsequent transformation of [delta]-ferrite to austenite during weld cooling. In this work, the microstructure evolution in the heat-affected-zone (HAZ) of self-shielded flux cored arc weld (FCAW-S) overlays were investigated using in-situ Time-Resolved X-ray Diffraction (TRXRD) with a high flux Synchrotron radiation beam [3, 4].