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This document discusses research on dissimilar welding of Inconel 713 superalloy and AISI 4140 steel using pulsed Nd:YAG laser. The effect of heat input on the microstructure and mechanical properties of the weld was studied. Increasing heat input encouraged coarse dendritic structure formation and reduced hardness. Higher heat input also led to element segregation and brittle phase formation, reducing tensile strength.

Author

Jacques Oosthuizen

Language

EN