简介：联合对的热绝缘的管料绳在充满井的蒸气内垮掉，在管料在高温度和高压力蒸气被使用大约二年以后。与进一步的支票，大多数在内部、外部的管料之间的焊接关节也裂开了，这被发现。为事故的失败分析被化学作文的分析为服务环境的钢，微观结构观察，机械性质测试，和调查执行了。对的热绝缘的管料绳的早损坏被苛性的压力腐蚀主要导致的结果表演，它能被联合的不稳定的微观结构加强很长时间在高温度满足了。而且，为周期的蒸气注射的热绝缘的管子上的高pre-压力设计可能不对蒸气泛滥的状况合适，它将导致裂开的焊接关节。(编辑作者摘要)6个裁判员。

简介：Thetensile-shearfailurezoneofthelaminateddampingsteelsheetwasinvestigatedbyscanningelectronmicroscopyandX-rayphotoelectronspectroscopy.Itisfoundthatthereexistscohesivefailureinpolymersandwichandsub-boundaryfailurebetweenthesteelsheetandthepolymer.Thesub-boundarylayerisdominantlypolymermaterial.Thetensile-shearfailureofthelaminateddampingsteelsheetisaprocessduringwhichthecrazesform,growupandmergeintocracks.

简介：Tooptimizetheprocessparameters,itisnecessarytoexactlypredictfailuremodesduringdeepdrawingofcoatedmetalsheets,wheretwomainfailureformsarefractureandwrinkling.Inthispaper,finiteelementsimulationsbasedoncontinuousdamagemechanicswereusedtostudythefailurebehaviorduringacylindricaldeepdrawingofmetalsheetswithnickelcoating.Itisshownthattakingtheeffectofblankholderforceintoaccount,thesetwofailuremodescanbepredicted.Thesimulationresultsarewellconsistentwiththatobtainedfromexperiments.

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简介：TheeffectofPtandCuelectrodesontheresistiveswitchingpropertiesandfailurebehaviorsofamorphousZrO2?lmswereinvestigated.ComparedwithCu/ZrO2/Ptstructures,thePt/ZrO2/PtstructuresexhibitbetterresistiveswitchingpropertiessuchasthehigherresistanceratioofOFF/ONstates,thelongerswitchingcyclesandnarrowdistributionofOFFstateresistance（Roff）.TheswitchingmechanisminthePt/ZrO2/Ptstructurecanbeattributedtotheformationandruptureofoxygenvacancy?laments;whileintheCu/ZrO2/Ptstructure,thereexistbothoxygenvacancy?lamentsandCu?laments.TheformationofCu?lamentsisrelatedtotheredoxreactionofCuelectrodeundertheappliedvoltage.TheinhomogeneousdispersiveinjectionofCuionsresultsinthedispersiveRoffandsigni?cantdecreaseofoperatevoltage.Schematicdiagramsoftheformationofconductive?lamentsandthefailuremechanismintheCu/ZrO2/Ptstructuresarealsoproposed.

简介：超离频分子的重量聚乙烯(UHMWPE)纤维/环氧基树脂composites被真空制作处理技术的灌输的帮助树脂(VARI)。composites的治好的条件在80的痊愈温度