Damage analysis of Ti6Al4V lattice structures manufactured by electron beam melting process subjected to bending load. Issue 6 (13th April 2021)

• Record Type: Journal Article
• Authors: Bellini, Costanzo; Borrelli, Rosario; Di Cocco, Vittorio; Franchitti, Stefania; Iacoviello, Francesco; Sorrentino, Luca
• Is Part Of: Material design & processing communications. Volume 3:Issue 6(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-04-13
• Subjects: additive materials -- bending -- damage -- Ti6Al4V; Materials -- Research -- Periodicals; Materials -- Design -- Periodicals; Materials -- Research; Materials -- Design; Electronic journals; Periodicals; 620.11
• DOI: 10.1002/mdp2.223
• Languages: English
• ISSNs: 2577-5476

Abstract

Abstract: High levels of stiffness, strength, and lightweight can be achieved through lattice structures. Many different technologies can be adopted for their construction; among them, additive manufacturing presents high flexibility and the capacity to produce complex shape parts. In this paper, a detailed analysis of the fracture surface was carried out on titanium sandwich panels, having a lattice core and produced through electron beam melting (EBM) process. The specimens were subjected to the three‐point bending test; then, the fracture surfaces were observed by means of a scanning electron microscope (SEM). The occurrence of dimples was found on the fracture surface, demonstrating the ductile behavior of the material; moreover, the micrographies showed a different morphology between the core of the struts and the surface.