Stability of crystallographic texture in laser powder bed fusion: Understanding the competition of crystal growth using a single crystalline seed

In metal additive manufacturing, crystallographic orientation control is a promising method for tailoring the functions of metallic parts. However, despite its importance in fabrication texture-controlled functional parts, stability texture not widely discussed. Herein, under laser powder bed fusion was investigated. Two methodologies were employed. One that scanning strategy alternately changed specific number layers. The other “seeding” experiment which single-crystalline substrates with controlled orientations building (z-) direction and xy-plane (perpendicular to direction) used as starting substrate. transient zone width, where inherited from layer beneath, analyzed evaluate stability. seed within xy-plane, rather than direction, determined i.e., particular, newly deposited portion stable when matched <100> underneath layer, otherwise crystal switched rapidly, such parallel direction. Interestingly, along hardly impacted texture. Therefore, first time, it has been clarified preferentially stabilized, whereas directions secondary stabilized.