简介：ThearealdistributionofsomeelementsintherareearthbearingspheroidalphasesinpurealuminiumandAl-MnalloyswasstudiedbySIMS(secondaryionmassspectrometry).Theresultsshowthatcerium,iron.siliconandhydrogenaresignificantlysegregatedinthephases.Thustheexistenceofhydrogen-richrareearthbearingeompoundsisconfirmed.Itindicatesthattherareearthshaveahydrogenfixationeffectinaluminiumandaluminiumalloys.
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