Dislocation transformations and the anomalies of deformation characteristics in TiAl—I. Models of dislocation blocking英文学习材料

Dislocation transformations and the anomalies of deformation characteristics in TiAl—I. Models of dislocation blocking英文学习材料

ID:39255998

大小:1.24 MB

页数:10页

时间:2019-06-28

Dislocation transformations and the anomalies of deformation characteristics in TiAl—I. Models of dislocation blocking英文学习材料_第1页
Dislocation transformations and the anomalies of deformation characteristics in TiAl—I. Models of dislocation blocking英文学习材料_第2页
Dislocation transformations and the anomalies of deformation characteristics in TiAl—I. Models of dislocation blocking英文学习材料_第3页
Dislocation transformations and the anomalies of deformation characteristics in TiAl—I. Models of dislocation blocking英文学习材料_第4页
Dislocation transformations and the anomalies of deformation characteristics in TiAl—I. Models of dislocation blocking英文学习材料_第5页
资源描述:

《Dislocation transformations and the anomalies of deformation characteristics in TiAl—I. Models of dislocation blocking英文学习材料》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库

1、Actametall,mater.Vol.39,No.2,pp.233-242,19910956-7151/91$3.00+0.00PrintedinGreatBritain.AllrightsreservedCopyright©1991PergamonPressplcDISLOCATIONTRANSFORMATIONSANDTHEANOMALIESOFDEFORMATIONCHARACTERISTICSINTiAI--I.MODELSOFDISLOCATIONBLOCKINGB.A.GREENBERG,O.V.ANTONO

2、VA,V.N.INDENBAUM,L.E.KARKINA,A.B.NOTKIN,M.V.PONOMAREVandL.V.SMIRNOVInstituteofMetalPhysics,UralDivisionoftheU.S.S.R.AcademyofScience,620219Sverdlovsk,GSP-170,U.S.S.R.(Received26February1990;receivedforpublication27April1990)Abstract--Ananalysisisgivenofthemodelspro

3、posedtoexplainthetemperaturepeakofyieldpointinTiA1.Resultsareprovidedofatheoreticalinvestigationintotheglissiledislocationsofdifferenttypesandoftransmissionelectronmicroscopy(TEM)observationsofnodesformedbythesedislocations.Considerationisgiventomechanismsofsuperdi

4、slocationblockingduetotheirresplittingintononcoplanarconfigurationssuchas"roof"-typebarriers,barriersofthetwo-layertwintype,barrierssimilartoKear-WilsdorflocksandLomer-Cottrell-Hirthbarriers.AnewblockingmechanismrelatedtotrappingofsingledislocationsindeepPeierlsval

5、leysisproposed.R6sum6---Nousavonsfaitl'analysedesmod61esproposespourexpliquerlepicdelalimite~lastiqueenfoctiondelatemperaturedansTiAI.Onadonn6lesr~sultatsdesrecherchesth6oriquesconcernantlesdislocationsglissantesdetypesdiff6rantsetl'observationdemicroscopie61ectron

6、iquedetransmissiondesnoeudsqueseforment.Desm6canismesdublocagedessuperdislocationsont6t6consid6r6sparsuitedelarecompositiondanscertainsconfigurationsnon-coplanaires:barri6restype"toW',typedemaclededeuxcouches,barri6respareillesficellesdeKearetWilsdorf,barri6resdeLo

7、mar-Cottrell-Hirth.Unnouveaumecanismedublocageli6aveclacapturedesdislocationsordinairesdanslesvall~esprofondesdePeierlsa~t~propos6.Zusammenfassung~GegebenisteineAnalysevonModellenfiirdieErl/iuterungderTemperaturmaximaderFliegspannungeninTiAI.AngefiihrtsindResultate

8、theoretischerUntersuchungenyongleitf'~ihigenVersetzungverschiedenerTypenundmitHilfeyonDurchstrahlungsmikroskopieerhalteneBeobachtun-genderdurchdi

当前文档最多预览五页,下载文档查看全文

此文档下载收益归作者所有

当前文档最多预览五页,下载文档查看全文
温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,天天文库负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。