Corrosion Effect on the Efficiency of High-Frequency Mechanical Impact Treatment in Enhancing Fatigue Strength of Welded Steel Structures
Artikel i vetenskaplig tidskrift, 2022

Fatigue and corrosion are two material degradation phenomena that occur in welded steel structures. High-frequency mechanical impact (HFMI) treatment is a post-weld treatment method that aims to increase the fatigue strength of welded details. This paper investigates the effect of steel corrosion on the efficiency of this method in enhancing fatigue resistance. More than 150 fatigue test results on corroded and HFMI-treated welded details are collected from several research articles and analyzed for both transverse welded attachment and butt-welded details. The efficiency of HFMI treatment decreases in corroded details as the corrosion level increases. However, HFMI treatment is found to have a high potential in prolonging the fatigue life, even in circumstances of an extremely corrosive environment.

offshore

high-frequency mechanical impact

steel

fatigue

corrosion

seawater

Författare

Hassan al-Karawi

Chalmers, Arkitektur och samhällsbyggnadsteknik, Konstruktionsteknik

Journal of Materials Engineering and Performance

1059-9495 (ISSN) 1544-1024 (eISSN)

Vol. In press

Rekomendationer för HFMI-behandling av stålbroar - utveckling av dimensioneringsmetoder och tekniska kravspecifikationer

Trafikverket (TRV 2020-68167), 2020-07-01 -- 2022-06-30.

LifeExt-2-Implementation

VINNOVA (2021-01045), 2021-05-31 -- 2024-05-30.

Drivkrafter

Hållbar utveckling

Styrkeområden

Building Futures (2010-2018)

Materialvetenskap

Ämneskategorier

Bearbetnings-, yt- och fogningsteknik

Annan materialteknik

Korrosionsteknik

DOI

10.1007/s11665-022-06918-x

Mer information

Senast uppdaterat

2022-05-16