title: Processing and mechanical characteristics of magnesium-hydroxyapatite metal matrix biocomposites.
abstract: Magnesium/hydroxyapatite composites were produced by conventional extrusion and their mechanical behavior studied under uniaxial compression at room temperature. The results evidence the capability of the HA for strengthening the Mg material, lowering its microstructural anisotropy and inhibiting deformation twinning. They also reveal that the ECAP processing is effective for improving the grain structure and reducing the crystallographic texture of these composites, giving rise to a significant enhancement of their yield strength and microhardness although the ultimate compressive stress worsens. The analysis of the strain hardening rate of the flow curves demonstrates that the HA addition and the ECAP processing are also effective in inhibiting non-basal dislocation slip.
authors.affiliation: Universidad Carlos III de Madrid, Departamento de Física, Avda. de la Universidad 30, 28911 Leganés, Spain.
authors.forename: R
authors.initials: R
authors.lastname: Del Campo
authors.affiliation: Universidad Carlos III de Madrid, Departamento de Física, Avda. de la Universidad 30, 28911 Leganés, Spain; Instituto Tecnológico de Química y Materiales Alvaro Alonso Barba (IAAB), Avda. Universidad 30, 28911 Leganés, Spain.
authors.forename: B
authors.initials: B
authors.lastname: Savoini
authors.affiliation: Universidad Carlos III de Madrid, Departamento de Física, Avda. de la Universidad 30, 28911 Leganés, Spain; Instituto Tecnológico de Química y Materiales Alvaro Alonso Barba (IAAB), Avda. Universidad 30, 28911 Leganés, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Muñoz
authors.affiliation: Universidad Carlos III de Madrid, Departamento de Física, Avda. de la Universidad 30, 28911 Leganés, Spain; Instituto Tecnológico de Química y Materiales Alvaro Alonso Barba (IAAB), Avda. Universidad 30, 28911 Leganés, Spain.
authors.forename: M A
authors.initials: MA
authors.lastname: Monge
authors.affiliation: Universidad Carlos III de Madrid, Departamento de Física, Avda. de la Universidad 30, 28911 Leganés, Spain; Instituto Tecnológico de Química y Materiales Alvaro Alonso Barba (IAAB), Avda. Universidad 30, 28911 Leganés, Spain.
authors.forename: R
authors.initials: R
authors.lastname: Pareja
mesh_terms: D017886:Durapatite / Q000032:analysis*; D008274:Magnesium / Q000032:analysis*; D008422:Materials Testing; D011312:Pressure; D013314:Stress, Mechanical
chemical_list: D017886:Durapatite; D008274:Magnesium
keywords: Biocomposite; Hydroxyapatite; Magnesium; Strain hardening; Texture hardening