Abstract
Laser additive manufacturing (LAM) of Tribaloy™ T800 (T800) is susceptible to developing cracks during manufacturing due to the formation of a high-volume fraction of the intermetallic Laves phase which imparts brittleness to the material. To resolve this problem, AISI 316 L stainless steel (SS316L) has been incorporated to develop a novel functionally graded Tribaloy™ T800 (FG-T800) structure by LAM. By increasing the fraction of SS316L from the surface to the interior we have demonstrated surface hardness and sliding wear resistance similar to T800 while allowing modification of the amount and morphology of the brittle Laves phase across the deposit depth. In this manner, a tougher core with a reduced propensity for cracking is achieved. This new LAM-based manufacturing approach has the potential to deliver functionally graded material (FGM) structures for T800 cladding and solid components, thereby enhancing performance or component life.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
