{"id":{"repo_id":"cape-town","oai_identifier":"oai:open.uct.ac.za:11427/21134"},"canonical_url":"https://search.dev.ndltd.org/etd/cape-town/oai:open.uct.ac.za:11427/21134","repository":{"repo_id":"cape-town","name":"University of Cape Town","base_url":"https://open.uct.ac.za/oai/request"},"display":{"title":"The influence of water composition on the pitting behaviour of newly developed corrosion resistant steels","abstract":"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.","abstract_html":"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.","abstract_has_math":false,"creators":["Cotterrell, M H"],"institution":"Centre for Materials Engineering","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Allen, Colin","Noel, Robert E J"],"committee_chairs":[],"committee_members":[],"year":1988,"date_issued":"1988","date_published":"1988","updated_at":"2026-07-22T22:23:33Z","subjects":[],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11427/21134","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Allen, Colin","Noel, Robert E J"]},{"key":"dc:creator","label":"Author","values":["Cotterrell, M H"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2016-08-05T10:49:13Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2016-08-05T10:49:13Z"]},{"key":"dc:date.issued","label":"Date","values":["1988"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Centre for Materials Engineering"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Cape Town"]},{"key":"dc:type","label":"Dc Type","values":["Master Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["Masters"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["MSc (Eng)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11427/21134"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Bibliography: pages 96-103."]},{"key":"dc:description.abstract","label":"Abstract","values":["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."]},{"key":"dc:title","label":"Title","values":["The influence of water composition on the pitting behaviour of newly developed corrosion resistant steels"]}]}],"canonical_facts":{"dc:contributor.advisor":["Allen, Colin","Noel, Robert E J"],"dc:creator":["Cotterrell, M H"],"dc:date.accessioned":["2016-08-05T10:49:13Z"],"dc:date.available":["2016-08-05T10:49:13Z"],"dc:date.issued":["1988"],"dc:description":["Bibliography: pages 96-103."],"dc:description.abstract":["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."],"dc:identifier.uri":["http://hdl.handle.net/11427/21134"],"dc:language.iso":["eng"],"dc:publisher.department":["Centre for Materials Engineering"],"dc:publisher.institution":["University of Cape Town"],"dc:title":["The influence of water composition on the pitting behaviour of newly developed corrosion resistant steels"],"dc:type":["Master Thesis"],"dc:type.qualificationlevel":["Masters"],"dc:type.qualificationname":["MSc (Eng)"]},"updated_at":"2026-07-22T22:23:33Z"}