ZK60镁合金经350℃往复挤压8道次后,晶粒尺寸显著细化,平均晶粒尺寸从约20μm细化到约1.5μm,组织均匀性大大改善.经往复挤压后,丝织构转变为{1013}<3032>+{1011}<1543>织构,且最大极密度下降.由于组织的细化和织构的改变, ZK60镁合金的室温轴向压缩屈服强度大幅度提高,轴向拉伸屈服强度有所下降.合金的拉压强度差异性基本消除;同时,合金的塑性明显提高,尤其是在压缩条件下,延伸率从15%增加到38%.
参考文献
[1] | Westengen H K.Light Met Age,2000; 58(3-4):44 |
[2] | Pekguleryuz M O.Mater Sci Forum,2000; 350:131 |
[3] | Dwain M,Magers A.Light Met Age,1996; 54(9-10):60 |
[4] | Yong M S,Clegg A J.J Mater Process Technol,2004; 145:134 |
[5] | Yang Q,Ghosh A K.Acts Mater,2006; 54:5159 |
[6] | Avedesian M M,Baker H.ASM Specialty Handbook:Mag-nesium and Magnesium Alloys.Materials Park,OH:ASM International,1999:17 |
[7] | Wang Y N,Huang J C.Acts Mater,2007; 55:897 |
[8] | Mukai T,Yamanoi M,Watanabe H,Higashi K.Scr Mater,2001; 45:89 |
[9] | Stohr J F,Poirier J P.Philos Mag,1972; 25:1313 |
[10] | Obara T,Yoshinaga H,Morozumi S.Acts Mater,1973;21:845 |
[11] | Mabuchi M,Iwahashi H,Yanase K,Higashi K.Scr Mater,1996; 36:681 |
[12] | Kim W J,Hong S I,Kim Y S,Min S H,Jeong H T,Lee J D.Acta Mater,2003; 51:3293 |
[13] | Lin J B,Wang Q D,Chen Y J,Zhang L J,Ding W J.Trans Nonferrous Met Soc Chin,2006; 16:206 |
[14] | Barret C,Massalski T B.Structure of Metals.3rd ed.,Oxford:Pergamon Press,1980:768 |
[15] | Kim W J,Hong S I,Kim Y S.Acts Mater,2003; 51:3293 |
[16] | Mueller K,Mueller S.J Mater Process Technol,2007; 187-188:775 |
[17] | Zhou H T,Ma C J,Zeng X Q,Ding W J.Mater Rev,2003; 17(11):16(周海涛,马春江,曾小勤,丁文江.材料导报,2003; 17(11):16) |
[18] | Mueller S,Mueller K,Rosumek M,Reimers W.Alu-minium Int J,2006; 82:327 |
[19] | Spitzig W A,Richmond O.Acts Metall,1984; 32:457 |
[20] | Guo Q,Yan H G,Chen Z H,Zhang H.Acts Metall Sin,2006; 42:739(郭强,严红革,陈振华,张辉.金属学报,2006; 42:739) |
[21] | Valiev R Z,Islamgaliev R K,Alexandrov I V.Prog Mater Sci,2000; 45:103 |
[22] | Meyers M A,Mishra A,Benson D J.Prog Mater Sei,2006;51:427 |
[23] | Christian J W,Mahajan S.Prog Mater Sci,1995; 39:1 |
[24] | Chen Z H,Yang C H,Huang C Q,Xia W J,Yah H G.Mater Rev,2006; 20(8):107(陈振华,杨春花,黄长清,夏伟军,严红革.材料导报,2006;20(8):107) |
[25] | Perex-Prado M T,Valle J A,Ruano O A.Scr Mater,2004; 50:667 |
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