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Title: Direct current testing to measure corrosiveness of wood preservatives

Source: Corrosion science. Vol. 49 (2007): pages 1673-1685.

Author(s)Zelinka, Samuel L.; Rammer, Douglas R.; Stone, Donald S.; Gilbertson, James T.

Publication Year: 2007  View PDF »

Category: Journal Articles

Abstract: A qualitative test that mimics the corrosion behaviour of metals in contact with treated wood without using wood specimens would be of great value in rapidly evaluating the corrosiveness of new wood preservatives. The objective of this study was to determine whether the linear polarisation resistance of metals immersed in a solution of preservative chemicals is related to corrosion of metals in wood. This technique was used to measure the corrosion rate of four types of metals in three different aqueous solutions of wood preservatives. The four metals were UNS G10180 (SAE 1018 steel), UNS S30400 (AISI 304 stainless steel), UNS S43000 (AISI 430 stainless steel), and UNS Z15001 (zinc). The metals were subjected to various concentrations of alkaline copper quat (ACQ-D), ammoniacal copper citrate (CC), and chromated copper arsenate type C (CCA-C). It was found that the corrosion of metals in the solutions of the wood preservatives did not correlate well to what is known about the corrosion of metals in contact with wood.

Keywords: Stainless steel; steel; zinc; polarisation; accelerated life testing; direct electric currents; coatings; deterioration; corrosion; steel; wood preservatives; fasteners; preservatives; ammoniacal copper citrate; linear polarization; chromated copper arsenate; connectors; CCA; ACQ; alkaline copper quat

File size: 451 kb(s)

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RITS Product ID: 19279
Current FPL Scientists associated with this product (listed alphabetically)
Rammer, Douglas R.
Research General Engineer
Zelinka, Samuel L.
Materials Research Engineer

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