Structure and properties of Ti-7.5Mo-xFe alloys.
The present work is a study of a series of Ti-7.5Mo-xFe alloys, with the focus on the effect of iron addition on the structure and mechanical properties of the alloys. Experimental results indicate that alpha" phase-dominated binary Ti-7.5Mo alloy exhibited a fine, acicular martensitic structure. When 1 wt% or more iron was added, the entire alloy became equi-axed beta phase structure with a grain size decreasing with increasing iron content. A thermal omega phase was formed in the alloys containing iron of roughly between 0.5 and 3 wt%. The largest quantity of omega phase and highest microhardness were found in Ti-7.5Mo-1Fe alloy. The binary Ti 7.5Mo alloy had a lower microhardness, bending strength and modulus than all iron-containing alloys. The largest bending strength was found in Ti-7.5Mo-2Fe alloy. The present alloys with iron contents of about 2-5 wt% seem to have a great potential for use as an implant material.
Lin
D J
DJ
Department of Materials Science and Engineering, National Cheng-Kung University, Tainan, Taiwan, ROC.
Lin
J H Chern
JH
Ju
C P
CP
D000497:Alloys / Q000737:chemistry*; D001672:Biocompatible Materials; D008422:Materials Testing; D008982:Molybdenum / Q000737:chemistry*; D019736:Prostheses and Implants; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
D000497:Alloys; D001672:Biocompatible Materials; D008982:Molybdenum; D014025:Titanium