400系不锈钢耐蚀性行为的研究

201011。400,SUS430、SUS444、SUS443、SUS439、SUS410L、SUS436、SUH409L。。25mm×25mm。70mm×140mm。。、。。400、。400。400。。400315807、400。400ResearchonCorrosionResistanceofSeries400StainlessSteelMAJin-daLINWeiHUQing-songJIANGWei-tingBaoxinStainlessSteelCo.,Ltd.,BaoshanIronSteelGroupCo.,Ningbo315807,China)Abstract:Methodsforcorrosionanalysisbasedonelectrochemistrytheoryhavebeenappliedextensivelyinscientificresearchinstitutes.Asforstainlesssteel,itiscrucialtomanagetodetermineindexessuchasitspittingpotentialandcorrosioncurrentwhich,asquantitativeindexes,reflectthecorrosionresistanceofmaterials.Datingbackto2006,whenacceptingtheanalysisentrustedbyBaoxinCompanyregardingwhetherSUS430lappingproductsareapttogetcorroded,StainlessSteelResearchInstitutestartedtoassessthecorrosionresistanceofmaterialswiththeaidofelectrochemicalexperimentingmethod,thatis,throughmeasuringindexes,suchaspittingpotentialandcorrosioncurrent,ofdifferentmaterialswithdifferentlappingprocesses,andtrackthechangesofcorrosionresistanceclearlybypolarizationcurvewithSaltSprayTestfunctioningonlyasanassistance.Andwithtotalimmersiontestingmethodapplied,generalcorrosionresistanceofsevendifferentseries400stainlesssteelinvitriolmediumofdifferentconcentrationsandtemperatureshasbeenmeanwhilemadeacomparisonwiththatinalkaliliquidofhightemperatureandconcentrationtofurtherestablishtheassessmentsystemoncorrosionresistanceofseries400stainlesssteel.KeywordsSeries400Steel;IntegratedDetectionInstrumentforCorrosion;PittingPotential;SaltSprayTest;TotalImmersionTestingMethod201012300400、。。304430。。ASTM。2.11。。23。。。。＋α。2.24001200#。、121。4。400SUS444、439SUS430。444＞439＞430＞443＞436＞409L＞410L。
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