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DrLesleyH.ChownPosition: FocusAreaCoordinator–StrongMetallicAlloysQualifications: Ph.D.(Wits)2008Phone: 0117177506Email: Lesley.Chown@wits.ac.zaOrganisationalUnit: SchoolofChemical&MetallurgicalEngineeringRoom: RW402

ResearchInterestsStructure-property relationships in metallic alloys such as steel, titanium and platinum-basedsuperalloys.Thermo-mechanicaltestingandmultiscalemodelling.

PublicationsBookchapters:L.A. Cornish and L.H. Chown (2011) Chapter 15: Platinum-Based Alloys and Coatings:Materials for the Future? In "Advances inGas Turbine Technology", Ed. Ernesto Benini,InTechPublisher,Publicationdate:November2011,pp.337-370.ISBN978-953-307-611-9.Thischapterhasbeendownloaded>5000times.ReviewArticles:L.A. Cornish, R. Süss, A. Douglas, L.H. Chown and L. Glaner (2009) The PlatinumDevelopment Initiative: Platinum-Based Alloys for High Temperature and SpecialApplications:PartI,PlatinumMetalsReview,53(1),Jan.,pp.2-10.L.A.Cornish,R. Süss, L.H.Chown, L.Glaner (2009)ThePlatinumDevelopment Initiative:Platinum-Based Alloys for High Temperature and Special Applications: Part III, PlatinumMetalsReview,53(3),July,pp.155-163.SomeRecentArticles:• JMAbdulandLHChown(2016)InfluenceofFeonhydrogenstoragepropertiesofV-rich

ternaryalloys,Int.J.HydrogenEnergy,41(4),Jan.2781-2787.

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• D.E.P. KLENAM, C. Polese, L.H. Chown, S. Kwofie and L.A. Cornish (2015)Mechanicalbehaviour of pack carburized AISI 316L austenitic stainless steel, J. SAIMM, 115(12),1183-1191.

• Bodunrin, M.O., Alaneme, K.K. and Chown, L.H. (2015) Aluminium matrix hybridcomposites: a review of reinforcement philosophies; mechanical, corrosion andtribologicalcharacteristics,J.ofMaterialsResearchandTechnology,4,434-445.

• VanderWalt,H.andChown,L.H.(2015)PolysorbateStabilisedFe3O4andFe3O4@AuNanoparticleSynthesisandCharacterisation,MaterialsToday:Proceedings,2(7),4081-4089.

• Cornish,L.A.,Süss,R.,Motha,S.,Ukpong,A.M.,Shongwe,M.B.,Witcomb,M.J.,Chown,L.H.andWatson,A.(2015)ApplicationofaThermodynamicDatabasetoPredictthePhasesandMicrostructureofPt-Al-Cr-RuAlloys,J.MaterialsToday:Proceedings,2(7),4090-4099.

• Mantyi,H.C.,Cornish,L.A.,Chown,L.H.andMwamba,A.I.,(2014)InvestigatingtheHighTemperatureOxidationBehaviourofTiAl-basedalloyswithNickelandRutheniumAdditions,AdvancedMaterialsResearch,1019,294-301.

• J.K.Odusote,L.A.Cornish,L.H.ChownandR.M.Erasmus(2014)MeasurementoftheStressinOxideScalesDevelopedUponOxidationofaPt-BasedAlloyinAirat1250°C,Int.J.Appl.Ceram.Technol.,11,3,602–610.

• A.I.Popoola,L.H.ChownandL.A.Cornish(2014)TheoreticalinvestigationsofPt3X(X=Al,Sc,Hf,Zr)groundstate,TurkishJ.Physics,38(1),10-16.

• HangoS.I.,CornishL.A.,ChownL.H.,vanderMerweJ.W.andKavisheF.P.L.(2014)Erosion-Corrosionofhardfacingmaterialsexposedtominewaterconditions,Int.ScienceandTech.J.ofNamibia(ISTJN),4,90-105

SpecialInterests• Structure-mechanicalpropertyrelationshipsinmetallicalloys• Physicalmetallurgyoftitanium,steelandplatinumalloys• Physical simulation of continuous casting, hot working and cold forming.

Thermomechanical testing (Gleeble technique) – hot rolling and heat treatmentsimulations,hotductility,coldheading,nilstrengthandhottensiletesting.

• Powdermetallurgy• Scanningelectronmicroscopyandelectronbackscattereddiffraction• Differentialthermalanalysis• Thermodynamicmodellingofphasesinmetals

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• Hot tensile testing (Tensile testingmachinewith infrared furnace) – hot ductility andhotstrengthtests.

Affiliations• DST-NRFCentreofExcellenceinStrongMaterials• AMSEN(AfricanMaterialsScienceandEngineeringNetwork)• MERG(MaterialsforEnergyResearchGroup),UniversityoftheWitwatersrand• SouthAfricanInstituteofMiningandMetallurgy(SAIMM),associatemember• CorrosionInstituteofSouthernAfrica(CorrISA)• TheMetals,MineralsandMaterialsSociety(TMS-USA)-membersince2005• AssociationforIronandSteelTechnology(AIST-USA)-membersince1995

OtherInterestsGolf,hiking,singing,guitar,poetry.

TeachingUndergraduate:• PracticalMetallurgy[CHMT2015]:1semester,laboratory-based.• CrystalStructuresandAnalysis[CHMT3025]:1/3of1semestercourse–Analytical

techniques.• MaterialsScienceandEngineering[CHMT2016]:1semester.Postgraduate:• Weldabilityofalloysteelsandstainlesssteels[CHMT7050].