Transcription of White-metal bearing alloys: mechanical properties at ...
1 RP512 white - ] ,withtheexceptionofwearresistancewasdete rminedatseveraltemperatures,rangingfrom2 0 to200 C.(68 to390 F.).Resistancetowearwasdeterminedonlyat2 0 ,thetin-basealloysshowedhigherresistance towearandinmostcaseshadhigherIzodimpactv alues,ateachtemperatureoftest,thanthelea d-basealloys,butinmostcases, ,inmostcases, "strategic" ,1932, (1)ametallographicstudyofthealloystested and(2)thedeterminationofthemechanicalpro pertiesofhardenedleadB(Table1). ,MechanicalPropertiesofWhiteMetalBearing AlloysatDMTemperatures, , , , , [ Resultsofchemicalanalysesofwhite-metalbe aringalloysAlloydesignationLeadTinAnti-m onyCopperCad-miumZincOtherconstituents, ""."is" , , , , , < , , ,withtheexceptionofwearresistance,wasdet erminedatseveraltemperaturesrangingfrom2 0 to200 C.(68 to390 F.), (Izodtest)andtopounding(repeatedimpact), ,whichincludedthoseitemsabovedescribed,s ervicetestswererunonaseriesofcrank-shaft bearings,preparedoffourcompositions, ^ Chemicalcompositionofwhite-metalbearinga lloysusedinservicetestsDesignationTinLea dCopperAnti-monyBariumCalciumA'.
2 ' >.. * "universalAmslerweartestingmachine" ,single-blowimpact,andcompressiontestspe cimenswerechillcast, ^ ] , , ( )andinmostcaseshadhigherIzodimpactvalues ( ) ,however,thetin-basealloysshowedlowerBur eauofStandardsJournalojResearch[ ( ) C200 Figure2. Effectoftemperatureupontheimpactresistan ce(Izodtest)ofwhite-metalbearingalloyspr opertiesofthelead-antimony-tinalloys,inm ostcases, :TheBuntingBrass100002060100150 TEMPERATURE C200 Figure3. Relationofcompressionstress, ,totemperatureoftest&BronzeCo.,theNation alLeadCo.,theBohnAluminum&BronzeCo., ,October8,1932.
