title: Influence of ageing treatment on microstructure, mechanical and bio-corrosion properties of Mg-Dy alloys.
abstract: Mg-Dy alloys have shown to be promising for medical applications. In order to investigate the influence of ageing treatment on their mechanical and corrosion properties, three Mg-xDy alloys (x=10, 15, 20 wt%) were prepared. Their microstructure, mechanical and corrosion behavior were investigated. The results indicate that ageing at 250 °C has little influence on the mechanical and corrosion properties. In contrast, ageing at 200 °C significantly increases the yield strength, and reduces the ductility. After ageing at 200 °C, the corrosion rate of Mg-20Dy alloy increases largely in 0.9 wt% NaCl solution, but remains unchanged in cell culture medium.
authors: Helmholtz Zentrum Geesthacht, Institute of Materials Research, Max-Planck-Str. 1, D-21502 Geesthacht, Germany. lei.yang@hzg.de
authors: Lei
authors: L
authors: Yang
authors: Yuanding
authors: Y
authors: Huang
authors: Frank
authors: F
authors: Feyerabend
authors: Regine
authors: R
authors: Willumeit
authors: Karl Ulrich
authors: KU
authors: Kainer
authors: Norbert
authors: N
authors: Hort
mesh_terms: D000497:Alloys / Q000737:chemistry*; D003343:Corrosion; D004419:Dysprosium / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry*; D055595:Mechanical Phenomena; D019736:Prostheses and Implants; D013997:Time Factors
chemical_list: D000497:Alloys; D004419:Dysprosium; D008274:Magnesium