RARE EARTH DISSOLVED IN SOLID SOLUTION OF STEEL AND ITS EFFECT ON MICROSTRUCTURE

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摘要 Theamountsofrareearthinthesolidsolutioninsteel16Mnweredeterminedbymeansofinductivecouplingplasma(ICP)spectroscopy.WhiletheRE/Sratiowaslessthan1.9,theamountsofrareearthinsolidsolutionwerenotmorethan8ppm,whichrisedslightlywiththeincreaseoftherareearthcontentinthesteel.WhiletheRE/Swasmorethan1.9,MnSdisappearedcompletelyinthesteelandtheamountsofrareearthinsolidsolutionincreasedrapidlywiththeincreasingoftherareearthcontent.Thesolubilityofceriuminsteel16Mn(St52)islessthan0.011wt%atroomtemperature.Theresultsalsoindicatethatrareearthinsolidsolutioncanreducetheamountofpearliteandincreasethatofferriteanditsmierohardness.Therela-tionshipbetweenmicrohardness(Hv)andtheamountofrareearthinsolidsolutioncanbeexpressedbytheequationofHv=117+7RE(ppm).
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机构地区 不详
出版日期 1990年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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