Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Titanium alloys present challenges in terms of lubrication due to their difficult-to-machine nature, which necessitates the development of sustainable and environmentally friendly lubricants. Water-based lubricants are commonly used for titanium alloys because of their effective cooling properties, despite encountering challenges such as poor lubrication performance and complex mechanisms. This study first demonstrates that polyacrylamide (PAM) is an excellent water-based lubricant additive for the Ti6Al4V (TC4)/GCr15 interface. It results in a reduction of friction and wear in TC4 contacts by 40% and 90%, respectively, when utilizing a low concentration of 2.5 wt%. It is also found that oxidative wear is present on the rubbing surfaces of TC4 when exposed to water at ambient temperature. The exceptional lubricating properties of PAM can be attributed to the formation of a boundary lubrication film, which occurs through the adsorption of PAM onto tribo-oxide layer. Increased concentrations of PAM promote chemisorption and hydrogen-bond interactions, thereby increasing the stability of the boundary lubrication film.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12134339 | PMC |
| http://dx.doi.org/10.1038/s41598-025-00737-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
AI-Assisted Design and Evaluation of SLM-Ti64 Implants for Enhanced Bone Regeneration.
Adv Healthc Mater
September 2025
Smart Materials, NanoSYD, Mads Clausen Institute, University of Southern Denmark, Alsion 2, Sønderborg, DK-6400, Denmark.
This study presents a comprehensive framework combining Selective Laser Melting (SLM) of Titanium (Ti64) alloys, finite element simulation, and artificial intelligence (AI) to advance orthopedic implants' design and predictive evaluation. Dense Ti64 specimens are fabricated using ten distinct SLM parameter sets to explore the effects of volumetric energy density (VED) on mechanical behavior, porosity distribution, and microstructural integrity. Optimal VED ranges are identified to balance defect minimization and mechanical performance, with porosity levels strongly influencing tensile strength and Young's modulus.
View Article and Find Full Text PDFInitial Experience of Appendicular Fracture Fixation with Low Profile Titanium Alloy Locking Plates: A Retrospective Study of 30 Fractures.
Vet Comp Orthop Traumatol
September 2025
Frank Pet Surgeons, IVC Evidensia, Leeds, United Kingdom.
This retrospective study assessed the complications and mid-term outcomes of osteosynthesis using the String of Pearls Low Profile (SOP-LP) plate system in cats and small dogs with appendicular fractures.Clinical data from April 2018 to June 2021, involving 30 fractures in 29 cases, were reviewed. Fractures were stabilized using either the 1.
View Article and Find Full Text PDFDual surface modification strategies for enhanced osteogenesis of titanium through the biomimetic Haversian osteon with deposited CaP to assemble salidroside.
Colloids Surf B Biointerfaces
August 2025
Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, China. Electronic address:
Titanium (Ti) and Ti alloy are the most widely used implant metals, but the limited bioactivity hinders the further clinical application. Aiming to enhance their osteogenesis, dual biomimetic strategies were utilized to decorate the surface of Ti by topological and biochemical cues. Firstly, a series of concentric circles with TiO nanotubes on Ti were fabricated by photolithography and anodic oxidation.
View Article and Find Full Text PDFAn in vivo comparative study of pure Mg and Mg-Zn alloy plates implanted in the mandible of New Zealand rabbits.
J Oral Biol Craniofac Res
August 2025
Oral Biology Department, Faculty of Dentistry, Tanta University, Al-Geish Street, Tanta, 31527, Egypt.
Background: Biodegradable magnesium-based implants present significant potential for maxillofacial applications, particularly in mandible fixation, due to their osteoconductive properties and elimination of secondary removal surgeries.
Objective: The present study aimed to assess the in vivo biocompatibility and degradation behavior of pure magnesium (Mg) and Mg-Zn-Ca alloy plates implanted in the mandibles of New Zealand rabbits, providing insights into their clinical viability.
Materials And Methods: Twenty-four male New Zealand White rabbits were divided into two groups and received titanium, pure Mg, and Mg-Zn-Ca alloy plates passively implanted into the mandibular bone surface.
A novel shape-memory Bi-hook device for nasolacrimal duct stent implantation in canalicular laceration repair.
BMC Ophthalmol
September 2025
Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, No.389 Xincun Road, Putuo District, Shanghai, 200065, China.
Purpose: To evaluate the clinical efficacy and safety of a novel shape-memory Bi-hook device in facilitating antegrade stent implantation for canalicular laceration repair.
Methods: In this retrospective comparative study, 76 patients (76 eyes) with canalicular laceration were enrolled: 39 patients (39 eyes) underwent Bi-hook-assisted stent implantation (Bi-hook group) and 37 patients received conventional Ritleng stent intubation (control group). The Bi-hook device was fabricated using a thermally shaped 0.