Excellent bulk forming ability and high plasticity of Biocompatible Titanium based bulk metallic glasses
(English)Manuscript (preprint) (Other academic)
A series of bulk glassy alloys of Ti-Zr-Cu-Pd-Sn composition without toxic elements (Ni, Be, Al) were investigated that revealed excellent bulk forming ability by exhibiting large supercooled regions (ΔTx≥56K), high values of reduced glass transition temperature (Trg ≥0.56) and the γ parameter (γ ≥ 0.39). As a consequence of large ΔTx≈70K glassy rods of at least 14mm diameter of Ti38.5Zr11.2Cu33.2Pd14.3Sn2.8 (Ti15) alloy were fabricated by direct Cu-mold casting. Uniaxial compressive test performed at room temperature showed high fracture strength (≥2070MPa) and good plasticity (≥5.8%) for all studied alloys. High bulk forming ability along with excellent plasticity (~6.8%) of Ti38.5Zr11.2Cu33.2Pd14.3Sn2.8 (Ti15) alloy as compare to other toxic free titanium based bulk metallic glasses (BMGs) makes it a potential candidate for biomedical application point of view.
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-101842OAI: oai:DiVA.org:kth-101842DiVA: diva2:549770
QC 201209062012-09-062012-09-052012-09-06Bibliographically approved