austempering
Aaron · 2010-08-06 19:20 · 30964 次点击
AheattreatmentforferrousalloysinwhichapartisquenchedfromtheaustenitizingtemperatureataratefastenoughtoavoidformationofferriteorpearliteandthenheldatatemperaturejustaboveMs,themartensitestarttemperature,untiltransformationtobainiteiscomplete.Althoughdesignatedasbainiteinbothaustemperedsteelandaustemperedductileiron(ADI),austemperedsteelconsistsoftwo-phasemixturescontainingferriteandcarbide,whileaustemperedductileironconsistsoftwo-phasemixturescontainingferriteandaustenite.