- Title
- Atmospheric corrosion of mild steel vertical prisms of different plan shape
- Creator
- Jeffrey, R.; Melchers, R. E.
- Relation
- Corrosion and Prevention 2013. Proceedings of the Annual Conference of the Australasian Corrosion Association 2013 (Brisbane, Qld 10-13 November, 2013)
- Relation
- http://www.corrosion.com.au/library
- Publisher
- Australasian Corrosion Association (ACA)
- Resource Type
- conference paper
- Date
- 2013
- Description
- Atmospheric corrosion tests of mild steel have employed thin flat steel panels of various sizes, with low edge to main surface ratios. The corrosion loss results relate well to the corrosion of flat steel products and surfaces. The few results reported for circular coupons such as wires showed corrosion losses higher than for flat plates (Jeffrey et al). Herein new observations are reported for the development of rusts, delamination of rusts and of atmospheric corrosion losses for mild steel square, hexagonal and circular prisms exposed in the vertical orientation at Belmont Beach for up to 3 years. The corrosion loss results are compared to previously reported results for flat plate coupons at the same site. In general, smaller samples, including the flat coupons, corroded much more than larger samples. For the smaller prisms rusts delaminated within 12 months or less whereas delamination was not observed for the larger samples. It is proposed that this the result of radial or equivalent cracking permitting higher rates of oxygen diffusion to the corrosion interface.
- Subject
- atmospheric corrosion; mild steel vertical prisms; corrosion loss
- Identifier
- http://hdl.handle.net/1959.13/1328699
- Identifier
- uon:25972
- Identifier
- ISBN:9781634394369
- Language
- eng
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