STUDY OF STAINLESS STEEL RESISTANCE
IN CONDITIONS OF TRIBOCORROSION WEAR
Goran Rozing1, Vesna Alar2 and Vlatko Marušić1
1J. J. Strossmayer University of Osijek, Faculty of Electrical EngineeringOsijek, Croatia
2University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture
Zagreb, Croatia
| INDECS 13(3), 461-471, 2015 DOI 10.7906/indecs.13.3.10 Full text available here. |
Received: 17 June 2015 |
ABSTRACT
Analyzed was the influence of tribocorrosion wear due to effects of fatty acids present in the processed medium. The analysis was conducted on samples made of two austenitic and two martensitic stainless steels. Austenitic steels were tested in their nitrided state and martensitic in their induction hardened state. Conducted were laboratory tests of corrosion resistance of samples, analysis of the microstructure and hardness. To see how the applied processes for modifying the surface of stainless steels behave in realistic conditions, it was conducted the examination of samples/parts of a sunflower cake chain conveyer. Based on the comparison of results obtained in the laboratory and in real conditions, it was estimated that steels AISI 420 and AISI 431 with induction hardened surfaces have a satisfactory resistance to abrasive-adhesive wear in the presence of fatty acids.
KEY WORDS
tribocorrosion, wear resistance, thermally-chemically treated, austenitic and martensitic steels
CLASSIFICATION
JEL: L89
PACS: 81.40-z, 81.40.Pq, 81.65.Kn, 81.65.Lp