Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Experimental Investigation on the Corrosion Detectability of A36 Low Carbon Steel Used in Multi-bolted Connections by the Method of Phased Array Corrosion Mapping

Jan Lean Tai
ORCID logo ,
Rafał Grzejda
* ORCID logo ,
Mohamed Thariq Hameed Sultan
* ORCID logo ,
Andrzej Łukaszewicz
* ORCID logo ,
Farah Syazwani Shahar
ORCID logo ,
Wojciech Tarasiuk
ORCID logo ,
Arkadiusz Rychlik
Version 1 : Received: 28 June 2023 / Approved: 29 June 2023 / Online: 29 June 2023 (11:19:56 CEST)

A peer-reviewed article of this Preprint also exists.

Tai, J.L.; Grzejda, R.; Sultan, M.T.H.; Łukaszewicz, A.; Shahar, F.S.; Tarasiuk, W.; Rychlik, A. Experimental Investigation on the Corrosion Detectability of A36 Low Carbon Steel by the Method of Phased Array Corrosion Mapping. Materials 2023, 16, 5297. Tai, J.L.; Grzejda, R.; Sultan, M.T.H.; Łukaszewicz, A.; Shahar, F.S.; Tarasiuk, W.; Rychlik, A. Experimental Investigation on the Corrosion Detectability of A36 Low Carbon Steel by the Method of Phased Array Corrosion Mapping. Materials 2023, 16, 5297.

Abstract

Petrochemical plants use on-stream inspection more often to detect and monitor the corrosion on the equipment and piping system. Compared to ultrasonic thickness gauging and pulse-echo A-scan, phased array corrosion mapping has better coverability and can scan a large area to detect general and localized corrosion. This paper's objective is to obtain documentary evidence on the accuracy of corrosion detection from 30°C to 250°C on A36 low-carbon steel by carrying out simulation experiments every 10°C steps. A minimum of three sets of phased array corrosion mapping data in each temperature were collected to study and evaluate the detectability. The data evidence could enhance the confidence level of the plant's end users to use the phased array mapping in the future during an inspection. The experiments were found to be insufficiently thorough despite addressing the initial concerns, leaving more area for discussion in further studies, such as expanding the investigation to thicker carbon steel, stainless steel, and wedge materials.

Keywords

Phased Array Ultrasonic Testing (PAUT); Non-destructive Testing (NDT); Ultrasonic Thickness Gauge (UTG); multi-bolted connections; flat bottom hole; elevated temperature

Subject

Engineering, Mechanical Engineering

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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