Lifetime Estimation of Chain Plates for Floodgates Working in Seawater by Continuum Fatigue-Creep Damage Theory and Transient Analysis of Diffusion Process of Hydrogen

Abstract:

Lifetime estimation of chain plates made of 45Cr high strength steel for floodgates working in seawater has been performed by considering fatigue-creep crack initiation and hydrogen assisted crack propagation at the plate. According to the records of operating history of the floodgates, average lifetime of the chain plate is in range of 18~22 years. Estimated lifetime of the chain plate by continuum fatigue-creep damage theory and transient analysis of the diffusion process of atomic hydrogen in the metallic lattice is in range of 19~25 years.

• Periodical: Advanced Materials Research (Volume 1095)
• Pages: 452-457
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1095.452
• Online since: March 2015
• Authors: Mun Chan Jong, Li Yang Xie, Hak Jin Song, Sun Jong Jon, Myong Il Kim, Xiao Lv
• Keywords: Fatigue-Creep Damage, Hydrogen Embrittlement, Stress Corrosion Cracking

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