HN45VMTYUBR Alloy: Impact of Laser Beam Welding Modes on Microstructure and Distribution of Alloying Elements in the Seam

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The article reviews the results of experimental studies of microstructure and redistribution of alloying elements in heat-resistant alloy HN45VMTYUBR during laser beam welding (alloy produced according to GOST 5632-14). Impression of laser emission on redistribution of alloying elements throughout the depth of a welding seam is demonstrated. Analysis covers the microstructure of several welding and heat-affected zones and redistribution of the alloying elements in these zones. Increase in tungsten content in weld root is detected. Redistribution of alloying elements in welding zones is proven to impact strength characteristics of the seam.

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Solid State Phenomena (Volume 284)

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530-535

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October 2018

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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