【英文标准名称】:Corrosionofmetalsandalloys-Stresscorrosiontesting-Preparationanduseofpre-crackedspecimensfortestsunderconstantloadorconstantdisplacement
【原文标准名称】:金属和合金的腐蚀.应力腐蚀试验.恒定负荷或恒定位移条件下试验用预破裂试样的制备和使用
【标准号】:BSENISO7539-6-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-03-10
【实施或试行日期】:2003-03-10
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试样;金属材料;金属;应力腐蚀;腐蚀试验;定义;材料试验;试样;试样制备;张应力裂纹腐蚀;耐腐蚀性;防腐蚀;腐蚀;合金;试验
【英文主题词】:Alloys;Applications;Corrosion;Corrosionprotection;Corrosionresistance;Corrosiontests;Definition;Definitions;Materialstesting;Metallicmaterials;Metals;Preparation;Samples;Specimenpreparation;Stresscorrosion;Tensioncrackcorrosion;Testspecimens;Testing;Tests
【摘要】:1ThispartofISO7539coversproceduresfordesigning,preparingandusingpre-crackedspecimensforinvestigatingsusceptibilitytostresscorrosion.Itgivesrecommendationsforthedesign,preparationanduseofpre-crackedspecimensforinvestigatingsusceptibilitytostresscorrosion.RecommendationsconcerningnotchedspecimensaregiveninAnnexA.Theterm"metal"asusedinthispartofISO7539includesalloys.2Becauseoftheneedtoconfineplasticityatthecracktip,pre-crackedspecimensarenotsuitablefortheevaluationofthinproductssuchassheetorwireandaregenerallyusedforthickerproductsincludingplatebarandforgings.Theycanalsobeusedforpartsjoinedbywelding.3Pre-crackedspecimensmaybeloadedwithequipmentforapplicationofaconstantloadorcanincorporateadevicetoproduceaconstantdisplacementattheloadingpoints.TestsconductedunderincreasingdisplacementorincreasingloadaredealtwithinISO7539-9.4Aparticularadvantageofpre-crackedspecimensisthattheyallowdatatobeacquiredfromwhichcriticaldefectsizes,abovewhichstresscorrosioncrackingmayoccur,canbeestimatedforcomponentsofknowngeometrysubjectedtoknownstresses.Theyalsoenableratesofstresscorrosioncrackpropagationtobedetermined.Thelatterdatamaybetakenintoaccountwhenmonitoringpartscontainingdefectsduringservice.
【中国标准分类号】:H25
【国际标准分类号】:77_060
【页数】:48P.;A4
【正文语种】:英语