Past research in tribocorrosion mainly relies on costly and trial-and-error experimental methods to study the materials’ deformation degradation under extreme conditions. This work developed a finite element based multiphysics model, validated by existing experiments of two Al alloys, analyze synergistic effects mechanical corrosion properties material mechanisms tribocorrosion. During consecut...

Knee and hip joint replacement implants involve a sliding contact between the femoral component and the tibial or acetabular component immersed in body fluids, thus making the metallic parts susceptible to tribocorrosion. Micro-motions occur at points of fixation leading to debris and ion release by fretting corrosion. β-Titanium alloys are potential biomaterials for joint prostheses due to the...

In this work, low volume reinforcement ex-situ Ti-B4C composites were produced using two different routes: conventional powder metallurgy (PM) and hot-pressing (HP). The effect of phases processing method on corrosion tribocorrosion behaviour studied. Composites processed by PM lost the typical passive Ti matrix, while HP presented similar to unreinforced Ti. Tribocorrosion tests showed that bo...

INTRODUCTION Recently, the popularity of Metal-on-Metal (MoM) hip bearings have diminished due to the concerns with generated wear debris and metal ion release that cause a negative response in the surrounding tissues. MoM bearings are typically manufactured from two types of metal alloys, lowcarbon (LC) and high-carbon (HC) CoCrMo. However, little is known about the in-vivo behavior of the two...

Basic properties of the suggested phenomenological model of tribocorrosion wear are considered. Using a friction pair austenitic stainless steel-ceramic in acid electrolytes as an example, a good agreement between predicted data and experimental evidence was obtained.

Tribocorrosion is a degradation phenomenon of material surfaces subjected to the combined action mechanical loading and corrosion attack caused by environment. Although corrosive chemical species such as materials like chloride atoms, chlorides, perchlorates have been detected on Martian surface, there lack studies its impact for landed spacecraft structures that will support surface operations...

In this paper, the tribocorrosion behavior and synergistic effect of 7075-T6 aluminum alloy under different applied loads (100, 150, 200 N) sliding velocities rpm) were studied in a 3.5 wt.% NaCl solution. Tribocorrosion experiments conducted tribobocorrosion system with pin-on-disc testing. The results show that interaction between load velocity significantly affects mechanical electrochemical...

The synergistic effect of simultaneous mechanical wear, chemical/electrochemical corrosion (tribocorrosion) and microbial attack poses a serious threat to marine coastal infrastructure. To address this important problem, we have developed composite coatings consisting TaC (25–35 at.%) corrosion-resistant α-Fe(Cr,Ni,Mo)-based metal matrix, as well bactericidal elements (Cu, Ag). Coatings 50–75 μ...

Stellite 6 (Co-29.5%Cr-5%W-1.2%C in wt%) is traditionally used as a hardfacing material the primary circuit of pressurised water reactors (PWRs) due to its good corrosion and wear resistance at up 300 °C. In this study, pin-on-disc type sliding contact tribocorrosion testing was conducted on HIPed 20 °C 250 using bespoke tribometer simulate environment. Transmission electron microscopy (TEM), s...

Ti-based materials are widely used for dental and orthopaedic implant applications due to their adequate mechanical properties, corrosion behaviour biocompatibility. However, these biologically inert display poor wear resistance. In one of the most studied processes that aims overcome drawbacks, Ti surfaces often covered by anodic oxide films with incorporation bioactive agents such as Ca P. Al...