Friction and Wear Behavior of Ti-6Al-7Nb Biomaterial Alloy
TypeArticles dans des revues avec comité de lecture
Titanium has been increasingly applied to biomedical application because of its improved mechanical characteristics, corrosion resistance and biocompatibility. However their application remains limited, due to the low strength and poor wear resistance of unalloyed titanium. The purpose of this study is to evaluate the friction and wear behavior of high-strength titanium alloys: Ti-6Al-7Nb used in femoral stem (total hip prosthesis). The oscillating friction and wear tests have been carried out in ambient air with oscillating tribotester in accord with standards ISO 7148, ASTM G99-95a, ASTM G 133-95 under different conditions of normal applied load (3, 6 and 10 N) and sliding speed (1, 15 and 25 mm·s−1), and as a counter pair we used the ball of 100C 6, 10 mm of diameter. The surface morphology of the titanium alloys has been characterized by SEM, EDAX, micro hardness, roughness analysis measurements. The behav-ior observed for both samples suggests that the wear and friction mechanism during the test is the same for Ti alloys, and to increase resistance to wear and friction of biomedical titanium alloys used in total hip prosthesis (femoral stems) the surface coating and treatment are required.
Showing items related by title, author, creator and subject.
FELLAH, Mamoun; LABAÏZ, Mohamed; ASSALA, Omar; IOST, Alain; DEKHIL, Leila (Taylor & Francis, 2013)The aim of this research is to study the tribological behaviour of AISI 316L stainless steel for surgical implants (total hip prosthesis). The tribological behaviour is evaluated by wear tests, using tribometers ball on ...
Sliding friction and wear performance of the nano-bioceramic α -Al 2 O 3 prepared by high energy milling FELLAH, Mamoun; SAMAD, Mohammed Abdul; LABAIZ, Mohamed; ASSALA, Omar; IOST, Alain (ELSEVIER, 2015)The structural evolution and morphological changes of the nanostructured α-Al2O3 powder using different milling times (1, 8, 16 and 24 h) were studied. It is observed that the crystallite size of the particles reduced to ...
FELLAH, M.; LABAÏZ, Mohamed; ASSALA, Omar; DEKHIL, Leila; ZERNIZ, N.; IOST, Alain (EDP Sciences, 2014)Friction and wear plays an important role in determining the performance of biomaterials. To this end, the present research is carried out to understand the tribological behavior important biometallic alloy, Ti-6Al-4V under ...
FELLAH, Mamoun; LABAÏZ, Mohamed; OSSALA, Omar; DEKHIL, Leila; TALEB, Ahlem; REZAG, Hadda; IOST, Alain (Hindawi, 2014)The aim of the study is to evaluate the friction and wear behavior of high-strength alloys Ti-6Al-7Nb used in femoral stem and compare it with a Ti-6Al-4V alloy cylindrical bar corresponding to ISO 5832-3 part 3/01-07-199 ...
LABAÏZ, Mohamed; FELLAH, Mamoun; ASSALA, Omar; IOST, Alain (Centre pour Ia Communication Scientifique Directe, 2015)Titanium and its alloys have been used as implant materials due to their very good mechanical and corrosion resistance and biocompatibility [1,2]. The most used biomaterials were commercially pure titanium (CP-Ti} ...