bainite

  Aaron ·  2010-08-06 19:19  ·  9977 次点击
AmetastableaggregateofferriteandcementiteresultingfromthetransformationofausteniteattemperaturesbelowthepearliterangebutaboveMs,themartensitestarttemperature.Upperbainiteisanaggregatethatcontainsparallellath-shapeunitsofferrite,producestheso-called"feathery"appearanceinopticalmicroscopy,andisformedaboveapproximately350°C(660°F).Lowerbainite,whichhasanacicularappearancesimilartotemperedmartensite,isformedbelowapproximately350°C(660°F).

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