双语试卷答案

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1、试卷适用班级班级姓名学号山东交通学院期末考试工程材料(含热处理)(双语)课程试卷答案第1页共3页得分阅卷人一、选择题（每小题2分，共20分）1.Inthefollowingalloys,Bcannotformeutecticphasediagram.A.Al-SiB.Cu-NiC.Pb-SnD.Fe-C2.Inthefollowingmethods,Acaneliminate(消除)dendriticsegregation(枝晶偏析).A.homogenizing（均匀化退火）B.isotherma

2、lannealing（等温退火）C.recrystallization(再结晶退火)D.stephardening(分级淬火)3.Themostsuitablesteelforcarburizing(渗碳)isD.A.45B.40CrC.40MB　　D.20CrMnTi4.Thestructureobtainedfrom40CrafterquenchingandhightemperaturetemperingiscalledA.A.temperedsorbite　　　B.temperedtroost

3、ite　　C.temperedmartensite　D.perlite5.Inthefollowingaluminumalloys,Acannotbestrengthenedbyheattreatment.A.Rust-proofaluminumalloysB.Duraluminalloys(硬铝)C.Ultraluminalloys(超硬铝)D.Wroughtaluminumalloys6.Inthefollowingsteeldesignations,Cbelongstoheatresistan

4、tsteel.A.20CrMnTiB.9SiCrC.15CrMoD.60Si2Mn7.TheshapeofgraphiteinthecastironKTZ450-06isD.A.nodular(球状)B.worm（蠕虫状）C.lamellar（片状）D.agglomerate（团絮状）8.ThemainfunctionofWinW18Cr4VisC.A.toimprovehardenabilityB.tomakegrainsfineC.toimprovethehardnessathightemper

5、aturesD.solidsolutionstrengthening9.Inthefollowingmaterials,Bisthemostsuitableonetomakearodpiece(杆类零件)ofφ10mm.It’sknownthatthepieceworksundermediumalternatepullingandpressingload(交变拉压载荷)andisrequestedtohaveuniform(均匀的)propertiesinthecrosssection(截面).A.

6、T12　　　　B.40CrC.1Cr13　　　　　D.ZGMn1310.Incastingindustry,castironsofBcompositionarewidelyused.A.hypoeutecticB.eutecticC.hypereutecticD.hypoeutectoid得分阅卷人二、判断题（每小题2分，共16分）1.Interstitialsolidsolution(间隙固溶体)canonlybelimitsolidsolution.（√）2.Wheneutectoidsteel

7、sareheatedabovethecriticaltemperature,itisimpossibletogetpearlite(P)duringtheprocessofcontinuouscooling.（×）3.Heattreatmentprocessesofcastironsmainlychangetheshapeanddistribution(分布)ofgraphite（石墨）.（×）4.Wheneutectoidsteelsareheatedtoaustenite，thestructur

8、esobtainedaftercoolingdependmainlyontheheatingtemperatureofsteels.（×）5.Austeniticstainlesssteels(奥氏体不锈钢)arethemostwidelyusedstainlesssteels.（√）6.HSn62-1iscalled“admiraltybrass”(海军黄铜)becauseofitsperfectcorrosionresistance.（√）7.Toimprovet