Original scientific paper

https://doi.org/10.17559/TV-20150310112039

A mechanism analysis of transverse weld cracks of marine thick steel plate

Haibo Wang ; (1) School of Materials Science and Engineering, Tianjin University, Weijin Rd, 92, Nankai, Tianjin 300072, China; (2) Tianjin Special Equipment Inspection Institute, Hangtian Street, Nankai, Tianjin 300192, China
Dongpo Wang ; School of Materials Science and Engineering, Tianjin University, Weijin Rd, 92, Nankai, Tianjin 300072, China
Fangjie Cheng ; School of Materials Science and Engineering, Tianjin University, Weijin Rd, 92, Nankai, Tianjin 300072, China
Ying Wang ; School of Materials Science and Engineering, Tianjin University, Weijin Rd, 92, Nankai, Tianjin 300072, China

Abstract

In the welding process of jackets for offshore platform, transverse weld cracks occur frequently, even when welding techniques, welding materials and marine steel plates used are stringently selected. But now defect failure analysis and mechanism study on this issue are scarce. To fully study the causes of transverse weld cracks of marine thick steel plate, this research uses instruments including metalloscope, scanning electron microscope (SEM), Energy Dispersive Spectrometer (EDS) and Auger Electronic Spectrom (AES). Researchers conclude that transverse weld cracks are welding hot cracks.

Keywords

inclusions; thick steel plate; transverse weld cracks; welding hot cracks

Hrčak ID:

138079

URI

https://hrcak.srce.hr/138079

Publication date:

22.4.2015.

Article data in other languages: croatian

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