????????????涓???涓荤?稿?????ㄥ????绀虹????瀛﹀???????e?BSE?惧??涓???拌??????剧ず伪-Al???惰??辨?剁????藉??寮???瑙?瀵??扮???告????杩?EDS????????????缁???纭??????杩?浜??哥?????╂?ц?借氨?炬??绀恒??al - 2cu?镐互???跺舰寮?瀛??ㄥ???芥???变?sr?ㄥ????涓???ㄥ??撮????灞??ㄥ?哄???????淬??瀵???尾-Al5FeSi?哥??琛?灏??垮?瀹规????SE?惧??涓??璇????烘?ワ?琛?灏??胯????剁??Al2Cu棰?绮????淬????SE?惧??涓?????板???g??q??Al5Cu2Mg8Si6)???垮??l2Cu?镐?澶???绮?Al3Zr?哥??缂哄け???戒????艰?绋?涓???????l3Zr?稿ぇ??婧惰В???炽??
?变?????????????绮?瀛?????哥??褰㈡?哥?癸???姝ゅ?灏?妫?娴??扮??哥??瀛??ㄣ??涓??村??????渚?????憾瑙g??Al3Zr棰?绮?(??l - 15wt .%Zr)涓????戒???绮???瀵?Zr棰?绮?褰㈡?搞???ㄩ????????????灏???浣?杩?????00??灏??捐????灏??轰?涓?l3Zr绮?瀛????伴????棰?娴???绮剧?涓???????(Al3Zr)???d????藉??ㄤ?绾崇背灏哄害涓?锛???瑕?楂??????????????惧?????芥?娴??般???剧ず浜???6澶?????????B?峰??涓??峰???浜???BF)??灏??甸???惧??锛??靛???骞宠?浜??鸿酱??浠???????????????互???猴?娌?amp;lt;110>娌跨??[100]涓?钩?㈡???????瑰??????
????????????杩?浜????虹?哥???垮害???翠负50 ~ 150 nm锛??ヨ?胃 ' -Al2Cu?跨???ラ??灏哄?(50 ~ 100 nm??[32,33]????(b)?剧ず浜?浠??????????????峰????稿?抽??瀹??哄???靛?琛?灏?(SAED)妯″???SAED?句腑???虹?哥??绂绘?h?灏???澶у?艰〃??胃 ' ??????????????瀛?????朵腑?$汗寰????芥???辩?灏???S ' -Al2CuMg绮?瀛???瀛??ㄩ????????瀵????镐???灏???璁$??烘ā????绌惰〃??锛?瀹?浠??????ㄎ糕???$汗????t6澶????′欢涓?????B??浜??洪??灏??甸???惧??锛?浠ュ??(B)?????哄???靛?琛?灏?(SAED)?炬???
????????????娣诲??~0.3 wt.%Zr?伴?搁???舵??涓???354??Al-Si-Cu-Mg?搁??????(????a)涓????Zr??????????(????a)??瀹ゆ俯(25掳C)寮哄害?煎??????楂?浜?~26 MPa (UTS)??40 MPa (YS)??SHT涔???锛?ut??寤舵?у?煎??????300 MPa??~ 6.3%?跺?烘?????涓???锛???灞???寮哄害澧???浜?~ 33 MPa?????告?,a .?????????????镐俊?瑰????????寮哄害??寮鸿?Zr??浣??ㄩ?や??ㄦ??楂????娓╁害??杩???浼告?ц?藉ソ浜?绾у己??娌?娣???褰㈡??(Al3Zr)??T5??T6?′欢涓???UTS??YS??甯告?ヨ?锛?杩????芥???变?T5??T6澶????ㄤ汉宸ユ?舵???舵????虹??缁?灏?寮ユ?d???寮哄??浣??ㄣ??
?版?朵唬锛??版??????轰?绌凤???浠??虫敞锛?瀛︿?锛?甯????ㄦ???ヨ?藉?涓??朵勘杩?锛?寮??????般??