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Research Articles (Materials Science and Metallurgical Engineering): Recent submissions
Now showing items 201-220 of 261
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(Southern African Institute of Mining and Metallurgy, 2012-07)The ferrite-pearlite microstructure is the most popular microstructure for alloys used in structural applications, including railway wagon wheels. These alloys have been designed through alloying and thermomechanical processing ...
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(Maney Publishing, 2012-07)In the steel plant considered here, direct reduced iron (DRI), produced by the coal based Stelco-Lurgi/Republic –National (SL/RN) process, makes up 50% or more of the total iron charge. The SL/RN DRI samples from a kiln ...
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(Trans Tech, 2011-06)Semi-solid metal high pressure die casting was used to produce plates from traditional wrought Al-Mg-Si alloys 6082 and 6004, as well as from traditional casting Al-Si-Mg alloys A356 and F357. The high Si-content of the ...
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(Southern African Institute of Mining and Metallurgy, 2011-04)The study comprised of the investigation into the sensitization characteristics of AISI 409 titanium stabilized ferritic stainless steel during low heat input welding. AISI 409 is a fully ferritic stainless steel used ...
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(Elsevier, 2012-07)Please read abstract in article.
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(Southern African Institute of Mining and Metallurgy, 2011)The thermal conductivity of slag is an important parameter in the design of furnace-containment systems based on freeze-lining technology. Literature indicates that the crystal content of a slag has a significant influence ...
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(Elsevier, 2011-10)Please read abstract in article.
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(Maney Publishing, 2012-04)Within ilmenite smelters, the slag is at a temperature just above its liquidus (because the furnace operates with a slag freeze lining), and the metal bath is at a temperature which is approximately 150°C lower than the ...
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(Southern African Institute of Mining and Metallurgy, 2011-06)In a gravity separation device, particle shape, size and density all play a role. The combination of these determines where each individual particle reports to in the viscous fluid, where particle crowding (solids to ...
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(Elsevier, 2011-12)The fatigue life of aluminium 6061-T651 at various applied stress amplitudes in the unwelded and welded condition was found to be significantly reduced on immersion in a 3.5% NaCl simulated sea water solution, compared ...
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(Southern African Institute of Mining and Metallurgy, 2011-11)Zincor, a zinc refinery in South Africa, uses oxygen enrichment of up to 26% O2 in its fluidizing air to increase concentrate-throughput in its fluidized bed roasters. The aim of the study is to determine whether O2 ...
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(Southern African Institute of Mining and Metallurgy, 2011-11)Zincor uses O2 enrichment (up to 26% O2 in the fluidizing air) to increase the processing rate of zinc concentrates in the fluidized bed roasters. The aim of this study is to determine whether O2 enrichment can be reduced ...
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(Southern African Institute for Industrial Engineering, 2011-10)The hot ductility of in situ melted tensile specimens of microalloyed steels having C contents in the range 0.12–0.17% (mass %) have been examined over the 700–1000°C temperature range. An improved testing method for ...
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(Elsevier, 2012-01)Please read abstract in article.
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(Hindawi Publishing Corporation, 2011)Alloy A356 is one of the most popular alloys used for semisolid metal forming. The heat treatment cycles that are currently applied to semisolid processed components are mostly those that are in use for dendritic casting ...
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(Southern African Institute of Mining and Metallurgy, 2011-06)In 2002 the commissioning of an ilmenite smelter on the North Coast of South Africa was extended by three months due to the failure and subsequent replacement of the magnesia-based refractory lining. The lining failed ...
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(Southern African Institute of Mining and Metallurgy, 2011-05)The use of electrolyte additives to smoothen cathode deposits during copper deposition is practised worldwide. These additives absorb on the cathode surface and take part in the electrochemical crystallization process. ...
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(Published by Maney on behalf of the Institute, 2011-04)A regression equation for the Ar3 temperature for as-cast ferrite/pearlite steels has been obtained. At these coarse grain sizes, very little influence of grain size on the Ar3 is observed. Out of all the elements examined, ...
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(Maney, 2011-02)The influence of a low Ti addition, (~0.01%) on the hot ductility of Nb containing steels has been examined. For conventional cooling conditions in which an average cooling rate from the melting point to the test temperature ...
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(Maney, 2011-01)The non-stoichiometric sulfide pyrrhotite (Fe(1-x)S), common to many nickel ores, occurs in a variety of crystallographic forms and compositions. In order to manipulate its performance in nickel processing operations either ...
Now showing items 201-220 of 261