简介：Themicrostructuralevolutionsofadvanced9-12%Crferrite/martensiteheat-resistantsteelsusedforpowergenerationplantsarereviewedinthisarticle.Despiteofthesmalldifferencesinchemicalcompositions,thesteelssharethesamemicrostructureoftheas-temperedmartensite.Itisthethermalstabilityoftheinitialmicrostructurethatmattersthecreepbehavioroftheseheat-resistantsteels.Themicrostructuralevolutionsinvolvedin9-12%Crferriteheat-resistantsteelsareelabo-rated,including（1）martensiticlathwidening,（2）disappearanceofprioraustenitegrainboundary,（3）emergenceofsubgrains,（4）coarseningofprecipitates,and（5）formationofnewprecipitates,suchasLaves-phaseandZ-phase.Theformerthreemicrostructuralevolutionscouldberetardedbyproperlydisposingthelattertwo.Namelyimprovingthestabilityofprecipitatesandoptimizingtheirsizedistributioncaneffectivelyexertthebeneficialinfluenceofprecipitatesonmicrostructures.Inthissense,themicrostructuralstabilityofthetemperedmartensiteisinfactthestabilityofprecipitatesduringthecreep.Manyattemptshavebeencarriedouttoimprovethemicrostructuralstabilityof9-12%Crsteelsandseveralpromisingheat-resistantsteelshavebeendeveloped.

简介：德国汉高公司于2011年开始在上海化工园区动工建设产能达42．8万吨／年的黏合剂工厂，新建粘合剂工厂将于今年9月份投产。建成后将成为全球最大的粘合剂工厂。据悉，该厂总投资5000万欧元，拟雇用600人。该厂成为汉高公司在亚太地区的主要生产基地之一，使公司快速应对市场需求的增长。