SAE AMS4930 Titanium Alloy Bars, Wire, Forgings, and Rings, 6Al - 4V, Extra Low Interstitial Annealed
时间:2024-05-04 08:30:07 来源: 标准资料网 作者：标准资料网 阅读：9658
Product Code:SAE AMS4930
Title:Titanium Alloy Bars, Wire, Forgings, and Rings, 6Al - 4V, Extra Low Interstitial Annealed
Issuing Committee:Ams G Titanium And Refractory Metals Committee
Scope:This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings.
基本信息
| 标准名称： | 锌合金牺牲阳极应用技术标准 |
| 中标分类： |
综合 >>
基础标准 >>
材料防护 |
| 替代情况： | 被SY/T 0019-97代替 |
| 发布日期： | |
| 实施日期： | 1988-06-01 |
| 首发日期： | |
| 作废日期： | 1998-01-01 |
| 出版日期： | |
| 页数： | 14页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 综合 基础标准 材料防护
【英文标准名称】:StandardPracticeforQuantitativeAcceleratedLaboratoryEvaluationofExtractionSolutionsContainingIonsLeachedfromThermalInsulationonAqueousCorrosionofMetals
【原文标准名称】:金属水腐蚀热绝缘材料中浸出的含离子萃取溶液的定量加速实验室评定的标准实施规程
【标准号】:ASTMC1617-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C16.31
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:溶液;离子;实验室;定量的;含水的;加速;萃取;评定;绝缘;金属;腐蚀;隔热
【英文主题词】:chloride;corrosion;corrosionunderinsulation;inhibition;metal;protectivecoatings;steel;thermalinsulation
【摘要】:1.1Thispracticecoversproceduresforaquantitativeacceleratedlaboratoryevaluationoftheinfluenceofextractionsolutionscontainingionsleachedfromthermalinsulationontheaqueouscorrosionofmetals.Theprimaryintentofthepracticeisforusewiththermalinsulationandassociatedmaterialsthatcontributeto,oralternativelyinhibit,theaqueouscorrosionofdifferenttypesandgradesofmetalsduetosolubleionsthatareleachedbywaterfromwithintheinsulation.ThequantitativeevaluationcriteriaareMassLossCorrosionRate(MLCR)determinedfromtheweightlossduetocorrosionofexposedmetalcouponsaftertheyarecleaned.1.2Theinsulationextractionsolutionspreparedforuseinthetestcanbealteredbytheadditionofcorrosiveionstothesolutionstosimulatecontaminationfromanexternalsource.Ionsexpectedtoprovidecorrosioninhibitioncanbeaddedtoinvestigatetheirinhibitoryeffect.1.3Preparedlaboratorystandardsolutionsareusedasreferencesolutionsandcontrols,toprovideameansofcalibrationandcomparison.SeeFig1.1.4Otherliquidscanbetestedfortheirpotentialcorrosivenessincludingcoolingtowerwater,boilerfeed,andchemicalstocks.Addedchemicalinhibitorsorprotectivecoatingsappliedtothemetalcanalsobeevaluatedusingthegeneralguidelinesofthepractice.1.5Thispracticecannotcoverallpossiblefieldconditionsthatcontributetoaqueouscorrosion.Theintentistoprovideanacceleratedmeanstoobtainanon-subjectivenumericvalueforjudgingthepotentialcontributiontothecorrosionofmetalsthatcancomefromionscontainedinthermalinsulationmaterialsorotherexperimentalsolutions.Thecalculatednumericvalueisthemasslosscorrosionrate.Thiscalculationisbasedongeneralcorrosionspreadequallyoverthetestdurationandtheexposedareaoftheexperimentalcellscreatedforthetest.Corrosionfoundinfieldsituationsandthisacceleratedtestalsoinvolvespittingandedgeeffectsandtheratechangesovertime.1.6Themeasurementvaluesstatedininch-poundunitsaretoberegardedasstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H11
【国际标准分类号】:77_060
【页数】:10P.;A4
【正文语种】: