Naslov
Tensile test analysis of corroded cleaned aged steel specimens

Autori
Garbatov, Yordan ; Saad-Eldeen, S. ; Guedes Soares, C. ; Parunov, Joško ; & Kodvanj, Janoš

Izvornik
Corrosion engineering, science and technology (1478-422X) 54 (2019), 2; 154-162

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
KEYWORDS Corroded-cleaned steel ; tensile tests ; material properties ; corrosion cleaning efficiency ; multi-criteria decision

Sažetak
The objective of this work is to analyse the influence of corrosion cleaning employing sandblasting, sand-paper cleaning, high-pressure-fresh-water-cleaning and corrosion cleaning by hammering on the mechanical properties of aged steel specimens. Tensile tests of cleaned corroded specimens are carried out. The specimens were cut from steel box girders, corroded in open sea water. The material properties of five groups of corroded specimens are experimentally estimated including the modulus of elasticity, yield stress, tensile strength and total uniform elongation. The trend of mechanical properties is analysed as a function of the degree of degradation and cleaning procedure, identifying that the cleaning treatment of the corroded surface significantly influences the mechanical properties and stress–strain relationships. A multi-criteria decision technique is employed to identify the most suitable cleaning technique accounting for the efficiency of the cleaning process and reducing the scatter in the mechanical properties of the cleaned corroded specimens.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja, Strojarstvo

POVEZANOST RADA