Plasma coatings and their ability to protect titanium alloys against corrosion fretting-fatigue fracture

1997 ◽  
Vol 33 (3) ◽  
pp. 331-335 ◽  
Author(s):  
V. I. Pokhmurs'kyi ◽  
O. S. Kalakhan
Keyword(s):  
Titanium Alloys ◽  
Fatigue Fracture ◽  
Fretting Fatigue ◽  
Plasma Coatings

scholarly journals Multiscale Wavelet-Based Analysis and Characterization of Fretting Fatigue Damage in Titanium Alloys

2009 ◽  
Vol 50 (7) ◽  
pp. 1758-1767 ◽  
Author(s):  
George N. Frantziskonis ◽  
Theodore E. Matikas
Keyword(s):  
Titanium Alloys ◽  
Fatigue Damage ◽  
Fretting Fatigue

Mechanisms of fretting-fatigue of titanium alloys

1997 ◽  
Vol 237 (2) ◽  
pp. 229-240 ◽  
Author(s):  
R.A. Antoniou ◽  
T.C. Radtke
Keyword(s):  
Titanium Alloys ◽  
Fretting Fatigue

FEATURES OF FORMATION OF ELECTROLYTE-PLASMA COATINGS FROM NICKEL-CONTAINING ELECTROLYTES ON TITANIUM ALLOYS

2021 ◽  
pp. 86-94
Author(s):  
V.A. Duyunova ◽  
◽  
M.S. Oglodkov ◽  
M.V. Gerasimov ◽  
I.A. Kozlov ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Titanium Alloys ◽  
Microarc Oxidation ◽  
Nickel Sulfate ◽  
Component Composition ◽  
Alkaline Electrolyte ◽  
Electrical Characteristics ◽  
Corrosion Resistant ◽  
Plasma Coatings ◽  
Corrosion Resistant Coatings

Influence of nickel sulfate additives in silicate-alkaline electrolyte for microarc oxidation of titanium alloys on properties of formed electrolyte-plasma coatings was investigated. The influence of the component composition of the electrolyte on the chemical composition of the coatings, their protective ability, porosity and electrical characteristics was established. It is shown that the most corrosion-resistant coatings are formed from electrolytes with a low content of nickel sulfate, and an increase in the content of nickel in the coating does not lead to a significant change in its electrical conductivity.

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.

The fretting fatigue of titanium and some titanium alloys in a corrosive environment

Wear ◽  
1973 ◽  
Vol 25 (2) ◽  
pp. 171-175 ◽  
Author(s):  
R.B. Waterhouse ◽  
M.K. Dutta
Keyword(s):  
Titanium Alloys ◽  
Fretting Fatigue ◽  
Corrosive Environment

Tribological properties of structural alloys for the heat exchange equipment parts subjected to fretting

2020 ◽  
pp. 401-407
Author(s):  
E.A. Marchenko ◽  
M.M. Khrushchov ◽  
S.M. Kaplunov ◽  
V.A. Panov
Keyword(s):  
Stainless Steel ◽  
Heat Exchange ◽  
Titanium Alloys ◽  
Fatigue Fracture ◽  
Coefficient Of Friction ◽  
Wear Mechanism ◽  
Sliding Friction ◽  
Adhesive Interaction ◽  
Heat Exchange Equipment ◽  
The Coefficient Of Friction

Trobological characteristics of sliding friction in stainless steel and titanium alloys in dry and water lubricated conditions have been determined. The character of the coefficient of friction variation with load and the duration of tests have confi rmed the prevailing wear mechanism in these materials to be frictional fatigue fracture that in the case of titanium alloys is accompanied with adhesive interaction and plastic plowing. The frictional fatigue curves built in a result of this investigation make possible to estimate the materials tribological longevity.

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