Tribological and corrosion behaviors of warm-and hot-rolled Ti-13Nb-13Zr alloys in simulated body fluid conditions.
Development of submicrocrystalline structure in biomedical alloy such as Ti-13Nb-13Zr (in wt%) through warm-rolling process has been found to enhance mechanical properties compared to conventional thermomechanical processing routes including hot-rolling process. The present study investigated the tribological and corrosion behaviors of warm-rolled (WR) and hot-rolled Ti-13Nb-13Zr alloys which have not been studied to date. Both tribological and corrosion experiments were carried out in simulated body fluid conditions (Hank's solution at 37°C) based on the fact that the investigated alloys would be used in a human body as orthopedic implants. The WR Ti-13Nb-13Zr demonstrated a submicrocrystalline structure that provided a significant enhancement in hardness, strength, and corrosion resistance. Meanwhile, there was no notable difference in wear resistance between the WR and hot-rolled samples despite the different microstructure and hardness. The present study confirmed the enormous potential of WR Ti-13Nb-13Zr with not only great mechanical properties but also high corrosion resistance in the simulated body fluid.
Department of Mechanical Engineering, Northwestern University, Evanston, IL, USA.
Taekyung
T
Lee
Centre for Biomaterials Science and Technology, School for Mechanical and Building Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India.
Eshaan
E
Mathew
Centre for Biomaterials Science and Technology, School for Mechanical and Building Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India.
Santhosh
S
Rajaraman
Centre for Biomaterials Science and Technology, School for Mechanical and Building Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India.
Geetha
G
Manivasagam
Defense Metallurgical Research Laboratory, Hyderabad, India.
Ashok Kumar
AK
Singh
Graduate Institute of Ferrous Technology (GIFT), Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea.
Chong Soo
CS
Lee
D001672:Biocompatible Materials / Q000737:chemistry*; D001826:Body Fluids / Q000737:chemistry*; D003343:Corrosion; D006801:Humans; D008422:Materials Testing; D013314:Stress, Mechanical; D013696:Temperature; D014025:Titanium / Q000737:chemistry*
D001672:Biocompatible Materials; C090153:titanium alloy (TiNb13Zr13); D014025:Titanium
corrosion; grain refinement; multi-pass caliber-rolling; titanium alloy; tribology