Journal
TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN
Volume 94, Issue 1, Pages 1-5Publisher
IRON STEEL INST JAPAN KEIDANREN KAIKAN
DOI: 10.2355/tetsutohagane.94.1
Keywords
in-situ observation; synchrotron radiation; solidification; peritectic reaction; welding; X-ray diffraction
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Time-resolved X-ray diffiraction system was studied to characterize the unidirectional solidification and the phase transformation during welding. Experimental conditions including wavelength of X-ray, scattering angle, incident angle and time-resolution for analyzing the solidification process in welding were made clear. Furthermore, heating and solidification processes for weld metal of 13Cr-9Ni steel in TIG welding were in-situ analyzed by using the system. The primary phase was identified as delta-phase during solidification with halo pattern for liquid phase, followed by the peritectic reaction with a spot-like diffraction pattern for delta-phase and austenite phase.
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