|About this Abstract
||Materials Science & Technology 2012
||Recent Advances in Phase Transformations and Structural Evolution in Titanium and its Alloys
||Aging Heat Treatments of Ti-Nb and Ti-Nb-Sn Alloys
||Alessandra Cremasco, Rubens Caram
|On-Site Speaker (Planned)
Due to high biocompatibility and high strength-to-weight ratio, titanium alloys are increasingly being applied in medical device manufacturing. Recently, research on orthopedic biomaterials has focused on the β Ti alloys. Enhanced mechanical behavior of rapidly quenched β Ti alloys can be accomplished by using aging heat treatment at medium temperatures, allowing transformation of metastable phases into stable phases. This work discusses the effects of Sn addition on metastable phases decomposition in Ti-Nb and Ti-Nb-Sn alloys. Ti-Nb and Ti-Nb-Sn alloys were prepared by arc melting and thermomechanically processed. Phase transformations during aging were evaluated by using high temperature X-ray diffraction and differential scanning calorimetry experiments. Results obtained suggest that the Sn addition increases metastable phase decomposition temperature and hence, causes delays in that phase transformation.
||Planned: Metallurgical and Materials Transactions