The influence of water composition on the pitting behaviour of newly developed corrosion resistant steels

• Main Author: Cotterrell, M H
• Other Authors: Allen, Colin
• Format: Dissertation
• Language: English
• Published: University of Cape Town 2016
• Subjects: Steel alloys - Corrosion; Steel - Corrosion; Applied Science; Materials Engineering
• Online Access: http://hdl.handle.net/11427/21134

Bibliography: pages 96-103. === The mechanisation of the working stapes in South African gold mines has required the introduction of a fundamentally new technology, hydro-power, in which machines are powered hydraulically using mine water fed from above ground. Mine water is aggressive and has a variable acidity and pH, and contains high concentrations of sulphate, chloride and nitrate ions. In order to minimise the pitting corrosion of piping and stoping machinery a compromise between selecting a suitable corrosion resistant material and treating the mine water to an acceptable level of corrosiveness is being sought.