ti-40al-10fe合金的时效与强化-研究

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1、strength．Thisstudyhasbrokenthroughthetraditionaltrial．．and．．erroralloyresearchmethodsthatusuallyarebasedonexperience，whichCangreatlyavoidtheblindfoldwasteofresourceandenergy．Additionally，ithasbeenmainlydiscussedabouttheeffectofagingstrengthenwhenadjustingtheorientationofprecipitationguidingb

2、ythetheoriesofphasetransitionofcrystallographyandthermodynamicsofphasediagram．WeCanproductalloyswhoseunitcellparameterandthestructureofprecipitationCanbothmeetthedesignedrequirement．Theprecipitationofalloywouldperformamaximumstrengtheningeffectifthegrowingorientationofprecipitationclosestoth

3、enormalofslipplaneofmatrix．TheSuccessmeansthat，atonehand，itobtainsakindofnewalloythatCanprobablytakeplaceofTi-·40A1--10Nbwhichgoeswithsuperiorperformanceandapplicationlimitation，ontheotherhand，itoffersanabsolutelynewwaytoresearchanddesignthealloy，whichpromotethedevelopmentofphasetransitionof

4、crystallographytheoryimmensely．Keywords：TiAlbasedalloy；phasetransition；agingthermodynamicsofphasediagram；alloydesigninginvariant—linetheory．．IV．．目录Ti．40AI．10Fe合金的时效与强化研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．I摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．IABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．III目录⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

5、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯V第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1金属间化合物的概述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1．1金属间化合物的概念及分类⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯l1．1．2．Ti．舢基金属间化合物的分类及现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．51．1．3Ti3A1金属间化合物⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．61．1．4TiAl3金属间化合物TiAl3⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯71．1．5Ti舢金属间化合物⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯71．2本论文选题依据及可行性分析⋯⋯⋯⋯⋯

6、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11第二章Ti．40A1．10Fe合金实验材料与方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．132．1实验设备及原料⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯132．1．1实验设备及原料⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．132．1．2实验制备叙述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．142．2样品的制备方法简介⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯162．2．1Ti．40A1．10Nb与Ti。40A1．10Fe合金的制备方法的比较和借鉴⋯．．192．2．2x射线衍射仪的基本原理与构造⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．212．2．3透射电镜观察T

7、EM的成像原理和观察的样品制备⋯⋯⋯⋯⋯．．232．2．4合金显微硬度测量⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．26第三章Ti-40舢．10Fe合金铸态及退火态的观察⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯283．1铸态Ti．40A1．10Fe合金的SEM观察及能谱分析⋯⋯⋯⋯⋯⋯⋯⋯⋯．．283．2退火态Ti．40A1．10Fe合金的SEM观察及能谱分析⋯⋯⋯⋯⋯⋯⋯⋯．303．3XRD观察的应用说明⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．313．3．1铸态及退火态Ti．40A1．10Fe的XRD