SAE AMS5642 Steel, Corrosion and Heat-Resistant, Bars, Wire, and Forgings, 18Cr - 10.5Ni - 0.60Cb, Free-Machining, Solut
时间:2024-05-14 10:41:13 来源: 标准资料网 作者：标准资料网 阅读：8244
Product Code:SAE AMS5642
Title:Steel, Corrosion and Heat-Resistant, Bars, Wire, and Forgings, 18Cr - 10.5Ni - 0.60Cb, Free-Machining, Solution Heat Treated
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers two types of free-machining, corrosion and heat-resistant steel in the form of bars, wire, forgings, and forging stock.
【英文标准名称】:StandardTestMethodforDeterminationofThermalShockResistanceforAdvancedCeramicsbyWaterQuenching
【原文标准名称】:水淬法测定高级陶瓷的耐热冲击强度的标准试验方法
【标准号】:ASTMC1525-2004(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:C28.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ceramics;quench;strength;thermalshock;Advancedceramics;Flexuraltesting--ceramics;Quantitativeanalysis/measurement;Quenching;Rapidquenching;Thermalshockmaterials/testing;Waterquenching
【摘要】:Thehightemperaturecapabilitiesofadvancedceramicsareakeyperformancebenefitformanydemandingengineeringapplications.Inmanyofthoseapplications,advancedceramicswillhavetoperformacrossabroadtemperaturerangewithexposuretosuddenchangesintemperatureandheatflux.Thermalshockresistanceoftheceramicmaterialisacriticalfactorindeterminingthedurabilityofthecomponentundertransientthermalconditions.Thistestmethodisusefulformaterialdevelopment,qualityassurance,characterization,andassessmentofdurability.Ithaslimitedvaluefordesigndatageneration,becauseofthelimitationsoftheflexuraltestgeometryindeterminingfundamentaltensileproperties.AppendixX1(followingEN820-3)providesanintroductiontothermalstresses,thermalshock,andcriticalmaterial/geometryfactors.Theappendixalsocontainsamathematicalanalysisofthestressesdevelopedbythermalexpansionundersteadystateandtransientconditions,asdeterminedbymechanicalproperties,thermalcharacteristics,andheattransfereffects.1.1Thistestmethoddescribesthedeterminationoftheresistanceofadvancedceramicstothermalshockbywaterquenching.Themethodbuildsontheexperimentalprincipleofrapidquenchingofatestspecimenatanelevatedtemperatureinawaterbathatroomtemperature.Theeffectofthethermalshockisassessedbymeasuringthereductioninflexuralstrengthproducedbyrapidquenchingoftestspecimensheatedacrossarangeoftemperatures.Foraquantitativemeasurementofthermalshockresistance,acriticaltemperatureintervalisdeterminedbyareductioninthemeanflexuralstrengthofatleast30%.Thetestmethoddoesnotdeterminethermalstressesdevelopedasaresultofasteadystatetemperaturedifferenceswithinaceramicbodyorofthermalexpansionmismatchbetweenjoinedbodies.Thetestmethodisnotintendedtodeterminetheresistanceofaceramicmaterialtorepeatedshocks.Sincethedeterminationofthethermalshockresistanceisperformedbyevaluatingretainedstrength,themethodisnotsuitableforceramiccomponents;however,testspecimenscutfromcomponentsmaybeused.1.2Thetestmethodisintendedprimarilyfordensemonolithicceramics,butmayalsobeapplicabletocertaincompositessuchaswhisker-orparticulate-reinforcedceramicmatrixcompositesthataremacroscopicallyhomogeneous.1.3ValuesexpressedinthisstandardtestmethodareinaccordancewiththeInternationalSystemofUnits(SI)andStandardIEEE/ASTMSI10.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q32
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:WroughtCarbonSteelSleeve-TypePipeCouplings
【原文标准名称】:锻制碳素钢套管接头
【标准号】:ASTMF682-1982
【标准状态】:作废
【国别】:美国
【发布日期】:1982
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:锥形筒子;碳素钢;焊接的;钢;造船;管套;管联接器;配件
【英文主题词】:carbonsteels;pipecouplings;shipbuilding;steels;cones;sleeves;welded;fittings
【摘要】:
【中国标准分类号】:J15
【国际标准分类号】:21_060_60
【页数】:5P;A4
【正文语种】:英语