Corrosion Effect on the Efficiency of High-Frequency Mechanical Impact Treatment in Enhancing Fatigue Strength of Welded Steel Structures
Journal article, 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
Author
Hassan al-Karawi
Chalmers, Architecture and Civil Engineering, Structural Engineering
Journal of Materials Engineering and Performance
1059-9495 (ISSN) 1544-1024 (eISSN)
Vol. 31 11 9151-9158Rekomendationer för HFMI-behandling av stålbroar - utveckling av dimensioneringsmetoder och tekniska kravspecifikationer
Swedish Transport Administration (TRV 2020-68167), 2020-07-01 -- 2022-06-30.
LifeExt-2-Implementation
VINNOVA (2021-01045), 2021-05-31 -- 2024-05-30.
Driving Forces
Sustainable development
Areas of Advance
Building Futures (2010-2018)
Materials Science
Subject Categories
Manufacturing, Surface and Joining Technology
Other Materials Engineering
Corrosion Engineering
DOI
10.1007/s11665-022-06918-x