Application of Laser Powder Bed Fusion in Obtaining Materials with Functional Gradients in Ti-Nb-Ta Alloys

• Grant number: 24/13761-4
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: October 01, 2024
• End date: March 31, 2026
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Rubens Caram Junior
• Grantee: Marcio Sangali Cristino da Silva
• Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 18/18293-8 - Titanium alloys: phase transformations and additive manufacturing applied to obtaining functionally graded materials, AP.TEM

Abstract

Recently, a new class of Ti-based implants has been in full development and is characterized by exhibiting functional gradients. Functional Gradient Materials or MGFs correspond to materials with continuous or discrete variations in structure and/or composition, which result in property variations along their dimensions. These variations aim to combine antagonistic behaviors that are not seen in homogeneous materials. This work aims to produce and characterize Ti-Nb-Ta alloy samples with functional gradients using the laser powder bed fusion (L-PBF) technique. The aim is to obtain samples with variations in elastic modulus along their dimensions. It is also intended to investigate the correlation between microstructure and process parameters, in particular, the effect of laser beam power and scanning speed on defect formation and crystallographic texture.