Behaviour of Rare Earths in Solid Solution in Steel
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG1990年第6期
论文作者：林勤 叶文 杜垣胜 余宗森
文章页码：415 - 420
摘 要：<正> The contents of rare earth metals（REM） insolid solution in 16 Mn steel were determined bymeans of inductive coupling plasma （ICP）spectroscopy.The amount of REM in solid solutionis only a few ppm in the steel with MnS inclusions,which rises slightly with the increasing of REMcontent in steel.At RE/S>1.9,the MnS inclu-sions in steel disappear completely,the REM con-tent in solid solution increases rapidly with the in-creasing of REM content.The solubility of ceriumin 16 Mn steel（st 52）is less than 0.011 wt—％ atroom temperature.The results obtained indicate that REM in sol-id solution reduce the amount of pearlite and in-crease that of ferrite and its microhardness.Dis-solved REM oculd increase temperature of criticalpoints,alleviate band structnre and suppressgrowth of austenite grains.
林勤，叶文，杜垣胜，余宗森
摘 要：<正> The contents of rare earth metals（REM） insolid solution in 16 Mn steel were determined bymeans of inductive coupling plasma （ICP）spectroscopy.The amount of REM in solid solutionis only a few ppm in the steel with MnS inclusions,which rises slightly with the increasing of REMcontent in steel.At RE/S>1.9,the MnS inclu-sions in steel disappear completely,the REM con-tent in solid solution increases rapidly with the in-creasing of REM content.The solubility of ceriumin 16 Mn steel（st 52）is less than 0.011 wt—％ atroom temperature.The results obtained indicate that REM in sol-id solution reduce the amount of pearlite and in-crease that of ferrite and its microhardness.Dis-solved REM oculd increase temperature of criticalpoints,alleviate band structnre and suppressgrowth of austenite grains.
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