抗磨耐熱鋼組織及性能的研究.pdf

1、Y782419鄭碩士學位授予單位代碼!Q笪皇學號或申請?zhí)朡2Q魚2生密級——學論文論文題目：抗磨耐熱鋼組織及性能的研究作者姓名：鄧想學科門類：工學專業(yè)名稱：材料加工工程導師姓名、職稱：孫玉福教授2005年5月20日鄭州大學碩士學位論文摘要ABSTRACTForthewearresistantandheatresistantpartsworkingathightemperatureandabrasivewealtheirmaterialn

2、otonlyrequireshigh—temperaturestrengthandcertainwearresistance，butalsequiresgoodoxidationresistancetomeetthedemandfortheirperformanceAccordingtotheworkingconditionofthewearresistantandheatresistantparts，thispaperdesigns1

3、0groupscompositionofthewearresistantandheat—resistantsteelbytheorthogonalexperimentalmethodreasonablyTheirC，CrNi，Si，Mn，N，Re，SandPcontentarealmostsame，butTiandWcontentaredifferentThemicrostructureofthewearresistantandheat

4、—resistantsteel砒ascaStandatannealingisanalyzedthroughthemetallographicalobservingandXraydiffractionTheoxidmionresistanceisstudiedonthewearresistantandheatresistantsteeland1Crl8Ni9at900。Cand1100℃respectivelyandtheoxidatio

5、nfilmofthewear—resistantandheatresistantsteelisanalyzedthroughX—raydiffractionMeanwhile，Brinellhardnesstestiscarriedonthewearresistantandheatresistantsteelnlewearresistanceoftllewearresistantandheatresistantsteelbeforean

6、dafteroxidationistestedbyML一100abrasiveweartestingmachineTheinfluenceofTiandWonthemicrostructure，hardnessandwearresistanceofthewearresistantandheatresistantsteelisresearchedandanalyzedTheexperimentalresultsarebelowThemic

7、rostructureofthewearresistantandheatresistantsteelatas，castiSausteniteasmallamountofferritecarbide‰ferriteinthematrixhasdisappearedandCr7C3carbidehastransformedintoCr23C6carbideafterannealingAndthemicrostructureisobvious

8、lythinninganduniformCr23C6andCr7C3carbideexistalonggrainboundaryandCanhinderthegrainboundaryslippingeffectivelyTheMCcarbideexistsdispersedlyalongthegrainboundaryandinthegrainandCanimprovethestrengthofthesteelThewearresis