简介：通过铁水脱硫→转炉→RH真空精炼→连铸→热轧→酸洗→冷轧→罩退→平整→重卷→消除应力退火等生产工艺,采用C≤0.003%,Si+Als≤1.80%成分体系,成功开发出无取向半工艺电工钢50W300牌号。消除应力退火后产品铁损值P15/50达到2.75w/kg,磁感应强度B5000达到1.68T,达到国标50W300牌号磁性要求。对比实验炉820℃和850℃消除应力退火后磁性能值,850℃消除应力退火后铁损值优于820℃消除应力退火后的铁损值,磁感强度变化不大。工业炉内800℃消除应力退火磁性能值优于实验炉820℃和850℃消除应力退火磁性能值。

简介：SomenewNi-saving25Crduplexstainlesssteels(DSS)havebeendeveloped.Theresultsindicatethatthealloyhasabalancedferrite-austeniterelationafterhotforgeandsolidsolutiontreatmentat1000℃.TheelementsWandCuhaveamarkedeffectonthemicrostructureofthealloy.ThepittingpotentialofthesteeladdingWandCuelementsreachesthemaximumvalueof435mV.Thetensilestrengthandpercentageofareareductionofallsteelsinthispaperare800-900MPaand60%-70%,respectively.Thetensileelongationsofthealloysareallabove30%.Theexperimentalsteelshavegoodcorrosionandmechanicalproperty.