Browsing Theses and Dissertations (Materials Science and Metallurgical Engineering) by Type "Dissertation"
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Browsing Theses and Dissertations (Materials Science and Metallurgical Engineering) by Type "Dissertation"
Now showing items 1-20 of 122
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(University of Pretoria, 2008-09-23)Iron ore sinter is produced from fine-grained ore in order to provide a direct charge to the blast furnace. During the sinter production process fine sinter is produced that is not acceptable as feedstock for the blast ...
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(University of Pretoria, 2024-05-17)The steel market increasingly demands higher strength thinner products with reduced weight and decreased cost, in particular galvanised products for the roofing, automotive and solar industries, which are in high demand. ...
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(University of Pretoria, 2008)The base metal distribution in, and losses to, Anglo Platinum six-in-line and slag cleaning furnace slags were characterised to coincide with various process changes at Waterval Smelter from 1999 to 2009. The base metals ...
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(University of Pretoria, 2004-02-26)Nitrogen-alloyed austenitic stainless steels are becoming increasingly popular, mainly due to their excellent combination of strength and toughness. Nitrogen desorption to the atmosphere during the autogenous welding of ...
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(University of Pretoria, 2008-09-23)Please read the abstract in the section, 00front, of this document (Role and responsibility of the author)
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(University of Pretoria, 2006-12-01)As one of the most abundant elements on earth, iron is nearly always present in metal concentrates. This is specifically true for zinc sulphide concentrates, which can contain up to 18% iron (marmatite). Today more than ...
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(University of Pretoria, 2006-12-21)The full text of this thesis/dissertation is not available online. Pending permission from the author/supervisor access may be provided on <a href="mailto:upetd@up.ac.za">request.</a> Read the abstract in the section 00front ...
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(University of Pretoria, 2020-04)Slurry wear is a common problem in the minerals processing industry. Hydrocyclones are widely used in wet mineral classification applications and can be notoriously prone to wear. This study investigated wear in hydrocyclones, ...
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(University of Pretoria, 2017)Hot strip mills (HSM) are used to roll cast slabs down from their initial size to plate or sheet, which is then used to manufacture a wide variety of goods for many industrial markets. The working rolls that contact and ...
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(University of Pretoria, 2016)Biooxidation is an attractive process for unlocking of gold from refractory ores, but could be further improved by reducing the rather high cyanide consumption during the cyanidation of the biooxidation residues. The high ...
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(University of Pretoria, 2020)Preg-robbing gold ores reduce the gold recovered with conventional aqueous cyanide processing by adsorption of the leached gold onto the ore which is then lost to the residue. Many ore constituents adsorb gold in the ...
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(University of Pretoria, 2020)The automotive industry currently demands materials with improved formability and crash performance. Austenitic stainless steels have been singled out for potential development of high strength steels to achieve exceptional ...
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(University of Pretoria, 2007-05-15)This project examined the feasibility of using flux modification to reduce the as-deposited hydrogen content of basic-type shielded metal arc welds. Additions of oxidizing ingredients (micaceous iron oxides) to the reference ...
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(University of Pretoria, 2009-08-04)Type 304 stainless steel is used in various applications where corrosion resistance is required. This material is selected for weldability and corrosion resistance, but it can suffer stress corrosion cracking (scc), corrosion ...
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(University of Pretoria, 2007-07-21)Please read the abstract in the section 00front of this document Copyright 2000, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be ...
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(University of Pretoria, 2021)Additive manufacturing can be used to produce complex, custom geometries, consolidating different parts into one. This reduces the required number of assemblies and allows distributed manufacturing with short lead times. ...
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(University of Pretoria, 2012-06-26)In addition to being one of the highest strength non-heat treatable aluminium alloys, magnesium-alloyed wrought aluminium 5083 displays excellent corrosion resistance and good weldability. Aluminium alloy 6061, alloyed ...
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(University of Pretoria, 2007-04-17)Chromium passivation treatment on tinplate is important in stabilising the active tin surface in terms of oxidation resistance, sulphide stain resistance and ensuring good lacquer adhesion properties. Through this research, ...
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(University of Pretoria, 2007-04-16)In recent years, emissions of hydrogen cyanide from metallurgical operations have received renewed attention by legislative bodies, leading to the need for a reliable quantification method for HCN volatilisation. Subsequently, ...
Now showing items 1-20 of 122