Effect of surface treatments on fretting fatigue damage of biomedical titanium alloys

2007 ◽  
Vol 40 (1) ◽  
pp. 82-88 ◽  
Author(s):  
Aravind Vadiraj ◽  
M. Kamaraj
Keyword(s):  
Titanium Alloys ◽  
Fatigue Damage ◽  
Fretting Fatigue ◽  
Surface Treatments ◽  
Effect Of Surface

Effect of surface modified layers on fretting fatigue damage of biomedical titanium alloys

2006 ◽  
Vol 22 (9) ◽  
pp. 1119-1125 ◽  
Author(s):  
A. Vadiraj ◽  
M. Kamaraj ◽  
U. Kamachi Mudali ◽  
A. K. Nath
Keyword(s):  
Titanium Alloys ◽  
Fatigue Damage ◽  
Fretting Fatigue ◽  
Surface Modified ◽  
Effect Of Surface

Fretting Fatigue Studies of Surface Modified Biomedical Titanium Alloys

2007 ◽  
Vol 539-543 ◽  
pp. 681-686
Author(s):  
Aravind Vadiraj ◽  
M. Kamaraj
Keyword(s):  
Friction Coefficient ◽  
Titanium Alloys ◽  
Thermal Oxidation ◽  
Fatigue Damage ◽  
Plasma Nitriding ◽  
Normal Pressure ◽  
Fretting Fatigue ◽  
Laser Nitriding ◽  
Surface Modified

Fretting fatigue is a form of adhesive wear damage caused due to tangential micro motion of two contact bodies under normal pressure and cyclic load. Biomedical implants such as hip joints and bone plates undergo fretting fatigue damage leading to premature in-vivo failure and revision surgeries. Surface modification of implants delays the process of fretting and thereby improves the life of these medical devices. This work involves investigation of fretting fatigue damage of surface treated titanium alloys couple. The surface treatment involves PVD TiN coating, Plasma nitriding, Ion Implantation, Laser nitriding and thermal oxidation. Fretting of all surface treated alloys have shown both adhesive and abrasive mode of contact damage. Friction coefficient of all the surface treated pairs is less compared to uncoated alloys. Plasma nitrided pairs have shown the best performance in terms of fretting fatigue life and friction coefficient compared to all other coatings. Ion implanted pairs have shown little improvement in fretting fatigue lives due to shallow modified layer. PVD TiN coated pairs have irregular friction pattern due to abrasive particles at contact. Thermal oxidation and Laser nitriding have shown poor fretting fatigue performance due to high case thickness.

Effect of surface treatments on fretting fatigue of Ti–6Al–4V

2007 ◽  
Vol 29 (7) ◽  
pp. 1302-1310 ◽  
Author(s):  
Patrick J. Golden ◽  
Alisha Hutson ◽  
Vasan Sundaram ◽  
James H. Arps
Keyword(s):  
Fretting Fatigue ◽  
Surface Treatments ◽  
Effect Of Surface

scholarly journals E-7 Effect of surface treatments on fretting fatigue strength of aluminum alloy(Session: Fatique/SCG)

2006 ◽  
Vol 2006 (0) ◽  
pp. 99
Author(s):  
Junnosuke MIZUTANI ◽  
Tomohisa NISHIDA ◽  
Yoshiharu MUTOH ◽  
Yuki KATSUMATA ◽  
Masahiro KAWAMURA ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Strength ◽  
Fretting Fatigue ◽  
Surface Treatments ◽  
Effect Of Surface

scholarly journals Effect of surface treatments on push-out bond strength of calcium silicate-based cements to fiber posts

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Amr M. Elnaghy ◽  
Ayman Mandorah ◽  
Ali H. Hassan ◽  
Alaa Elshazli ◽  
Shaymaa Elsaka
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Glass Fiber ◽  
Calcium Silicate ◽  
Surface Treatments ◽  
The Other ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Push Out ◽  
Effect Of Surface

Abstract Background To evaluate the effect of surface treatments on the push-out bond strength of Biodentine (BD) and white mineral trioxide aggregate (WMTA) to fiber posts. Methods Two brands of fiber posts were used: Reblida post; RP and RelyX post; RX. Each type of post (n = 80/group) was divided into four groups (n = 20/group) and exposed to surface treatment as follows: Control (no treatment), sandblasting (SB), hydrofluoric acid (HF), and TiF4 4 wt/v%. Each group was further subdivided into two subgroups (n = 10/subgroup) based on the type of CSCs used as follows: Subgroup A: BD and Subgroup B: WMTA. Push-out bond strength of BD and WMTA to glass fiber posts was assessed. Data were statistically analyzed using three-way ANOVA and Tukey’s test. A Weibull analysis was performed on the push-out bond strength data. Results BD showed higher bond strength than WMTA (P < 0.001). The push-out bond strength for posts treated with TiF4 4 wt/v% showed greater bond strength than the other surface treatments (P < 0.05). The BD/RP-TiF4 4 wt/v% showed the greater characteristic bond strength (σ0) (15.93) compared with the other groups. Surface treatments modified the surface topography of glass fiber posts. Conclusions The BD/RP-TiF4 4 wt/v% showed greater bond strength compared with the other groups. The TiF4 4 wt/v% surface treatment enhanced the bond strength of BD and WMTA to glass fiber posts than the other treatments. Surface treatment of fiber post with TiF4 4 wt/v% could be used to improve the bond strength with calcium silicate-based cements.

Effect of surface treatments on titanium alloy bonding to lithium disilicate glass-ceramics

2016 ◽  
Vol 116 (5) ◽  
pp. 797-802 ◽  
Author(s):  
Nuno Guilherme ◽  
Chandur Wadhwani ◽  
Cheng Zheng ◽  
Kwok-Hung Chung
Keyword(s):  
Titanium Alloy ◽  
Glass Ceramics ◽  
Lithium Disilicate ◽  
Surface Treatments ◽  
Effect Of Surface
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