Effect of Nitrided and Nitrocarburised Austenite on Pitting and Crevice Corrosion Resistance of 316 LVM Steel Implants
| Autor: | Michał Tarnowski, Anita Kajzer, Nika Sura, Zbigniew Pilecki, Wojciech Kajzer, Magdalena Ceglarska, Tomasz Borowski |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
nanohardness Passivation implant pitting corrosion wettability Fretting 02 engineering and technology 01 natural sciences lcsh:Technology Article 0103 physical sciences Surface roughness Pitting corrosion General Materials Science lcsh:Microscopy 316 LVM steel lcsh:QC120-168.85 010302 applied physics Austenite lcsh:QH201-278.5 lcsh:T Metallurgy technology industry and agriculture 021001 nanoscience & nanotechnology Microstructure crevice corrosion lcsh:TA1-2040 diffusion layers lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 Nitriding Crevice corrosion |
| Zdroj: | Materials Materials, Vol 13, Iss 5484, p 5484 (2020) Volume 13 Issue 23 |
| ISSN: | 1996-1944 |
| Popis: | Harmful lesions occur in the body around multielement stabilisers made of AISI 316 LVM (Low Vacuum Melted) steel, caused by products of pitting, fretting or crevice corrosion. Preventing the effect is possible by modifying the surface of the steel implants. Therefore, the goal of the paper is the comparison of the mechanical and physiochemical properties of plates for treating deformations of the anterior chest wall made of AISI 316 LVM steel, subjected to diffusion and sterilisation processes and exposed to Ringer&rsquo s solution. The surface of the implants was subjected to electrochemical polishing, chemical passivation and, in order to modify their properties, nitrocarburised and nitrided diffusion layers were created on selected stabilisers under glow discharge conditions with the use of an active screen at a temperature of 420 ° C, over 60 min. The conducted studies involved the examination of the microstructure of the formed layers, surface roughness testing, analysis of contact angles and surface free energy, examination of resistance to pitting and crevice corrosion and examination of nanohardness. On the basis of the results of the conducted studies, it was established that the most advantageous set of properties after sterilisation and exposure to Ringer&rsquo s solution was displayed by implants with a formed diffusion nitrocarburised layer. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |