科技英语文献翻译英文资料原文(3)
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时间:2025-04-07
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Branaganetal.DevelopingBMNintoindustrialproducts
2Structuralformationmodelutilisedtodevelopsurfacetechnologysolutions
wearplate.Onenoteisthatthedevelopmentofweldresistanceofthecoatings,whichhasbeensuccessfullyoverlaytechnologytookauniquepathsinceweldingutilisedatanumberofoperatingpowerplants.Figure4b(otherthanlaserweldingwherethedilutionislow)19showsweldoverlayhardfacing/hardbandingappliedtoainvolvesintimatemixingwiththecrystallinesubstrate.tooljointaspartofthetoolstemforoilandgaswellThus,itwasfoundthatitwasverydif culttoretainthedrillingillustratingthehighwearresistanceandlowglassstructureindependentofthecriticalcoolingrateforfrictiontribologicalcouplethatcanbeproduced.metallicglassformationduetothepresenceofcrystallineFigure4cisanexampleofawearpackageutilisingweldheterogeneousnucleationsites.Nevertheless,itwasfoundoverlaytoprovideextremewearprotectiontoalargethattheglassformingnatureofthealloysresultedinhigh26yard3(y20m3)shoveldipper.Figure4disa240tonundercoolingbeforenucleationasshownbythenuclea-(,217metrictons)haultruckwithwearplatesinstalledtionpointtninFig.3c,whichallowedahighnucleationinthebedofthetruckwithover10milliontonsofhardfrequencyandlimitedtimeforgrowthresultinginrockoreprocessed,illustratingresistancetoextrememetallurgicalre nementoftheresultingweldoverlayimpact,highstressabrasionandploughing/gouging.
structure.ThecreationofnovelnearnanoscalestructuresdirectlyduringtheweldingprocesshasresultedincompellingcombinationsofpropertiesincludinglowMonolithictechnology
frictionandhighwear/abrasionresistance.14,20
Inmonolithictechnology,nosubstrateisutilised,soExamplesofsurfacetechnologyapplicationsforBMNthereisnomethodologytodevelopsystemtoughness.arewidespread,andselectedcommercialexamplesofThisnecessitatesinherentmaterialtoughnessrequiringsurfacetechnologyareprovidedinFig.4.Figure4atensileplasticitysoaneffectiveplasticzonecanbeshowsanexampleofawirearccoatingbeingappliedformedaheadofa aworcracktip.Asdiscussedontotheheatexchangetubesofabiomassboilerandispreviously,reducedlengthscalematerialshaveveryillustrativeofthehightemperatureerosionandcorrosion
limitedabilitytodeformatroomtemperature.
Metallic
aphysicalvapourdeposition;bthermalspraycoating;cweldoverlayhardfacing
3ModelCCTdiagramsforsurfacetechnologyshowingtechnologicalexploitationofBMNtonewapplicationtechniques
atincreasinglevelsofthicknesscorrespondingtoreductionsinnecessarycooling
rate
MaterialsScienceandTechnology2013
VOL
29
NO
101195
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