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Characterization of WELD Heat Affected Zone of ASTM A709 HPS 100W
Abstract:
The weld heat affected zone (HAZ) of HPS 100W was characterized in terms of microstructure and mechanical properties. HAZ simulation was carried out in a GLEEBLE 3500 along with in-situ dilation tests at different peak temperatures of 850°C, 1100°C, 1300°C and 1350°C with heat input of 2kJ/mm. Subsequently, impact toughness data were obtained at different temperatures by means of Charpy tests. The microstructures were characterized using optical microscope, SEM and TEM to correlate the structure-property relationship of the HAZ. Under the tested conditions, all the simulated HAZs exhibited higher impact toughness than the base metal.
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1474-1480
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Online since:
January 2012
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© 2012 Trans Tech Publications Ltd. All Rights Reserved
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