Continuous and pulsed selective laser melting of Ti6Al4V lattice structures: Effect of post-processing on microstructural anisotropy and fatigue behavior

Abstract Additive manufacturing technologies in general and laser powder bed fusion (L-PBF) in particular have been on the rise in different applications, including biomedical implants. The effects of the various l-PBF process parameters on the microstructure and properties of Ti6Al4V lattice structures have been studied before. However, the relationship between the different modes of laser scanning …

Isolated and modulated effects of topology and material type on the mechanical properties of additively manufactured porous biomaterials

Authors R. Hedayati, S.M. Ahmadi, K. Lietaert, B. Pouran, Y. Li, Harrie Weinans, C.D. Rans, A.A. Zadpoor Abstract Additive manufacturing (AM) techniques offer the possibility to produce open-cell porous implants with the desired topological design at the micro-scale. The vast majority of previous theoretical and numerical studies carried out on the mechanical properties of AM …

Fatigue performance of additively manufactured meta- biomaterials: the effects of topology and material type

Authors ┬áS.M. Ahmadi, R. Hedayati, Y. Li, K. Lietaert, A. Fatemi, C.D. Rans, B. Pouran, H. Weinans, A.A. Zadpoor Abstract Additive manufacturing (AM) techniques enable fabrication of bone-mimicking meta-biomaterials with unprecedented combinations of topological, mechanical, and mass transport properties. The mechanical performance of AM meta-biomaterials are direct function of their topological design. It is, however, …

Additively Manufactured Open-Cell Porous Biomaterials Made from Six Different Space-Filling Unit Cells: The Mechanical and Morphological Properties

Authors Seyed Mohammad Ahmadi, Saber Amin Yavari, Ruebn Wauthle, Behdad Pouran, Jan Schrooten, Harrie Weinans 1,3 and Amir A. Zadpoor Abstract It is known that the mechanical properties of bone-mimicking porous biomaterials are a function of the morphological properties of the porous structure, including the configuration and size of the repeating unit cell from which …