刘胜胆,游江海,张新明,邓运来

• 1:中南大学材料科学与工程学院

摘要(Abstract)：

通过拉伸性能测试、晶间腐蚀和剥落腐蚀性能测试,金相显微镜、透射电子显微镜研究了双重淬火对7055铝合金组织及性能的影响。结果表明:合适的双重淬火可调控晶界和晶内析出状态,使合金时效后晶界上的析出相呈断续分布,晶内沉淀强化相均匀、弥散、细小析出,保证合金高强度的同时,提高晶间和剥落腐蚀性能。

关键词(KeyWords)： 7055铝合金;双重淬火;力学性能;晶间腐蚀;剥落腐蚀

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划(2005CB623700)

作者(Author): 刘胜胆,游江海,张新明,邓运来

参考文献(References)：

• [1]Chakrabarti D J,Liu J,Goodman J H.Aluminum alloy products having improved property combinations and method for artificially aging same:USA,20050150579[P].2005-07-14.
• [2]Denzer D K,Chakrabarti D,Liu J.Method for increasing the strength and/or corrosion resistance of 7000 series Al aerpspace alloy products:USA,20050269000[P].2005-12-8.
• [3]Lumley R N,Polmear I J,Morton A J.Development of mechanical properties during secondary aging in aluminium alloys[J].Materials Science andTechnology,2005,21(9):1025-1032.
• [4]Oliveira A F Jr,Barros M C de,Cardoso K R.The effect of RRA on the strength and SCC resistance on AA7050 and AA7150 aluminium alloys[J].MaterialsScience and Engineering A,2004,379:321-326.
• [5]张茁,陈康华,刘红卫.高温预析出对Al-Zn-Mg-Cu铝合金显微组织、强度和应力腐蚀抗力的影响[J].金属热处理,2003,28(7):13-16.
• [6]Srivatsan T S,Sriram S.Microstructure,tensile deformation and fracture behavior of aluminium alloy 7055[J].Journal of Materials Science,1997,32:2883-2894.
• [7]Sinyavskii V S,Ulanova V V,Kalinin V D.On the mechanism of intergranualr corrosion of aluminum alloys[J].Protection of Metals,2004,40(5):537-546.
• [8]Ramgopal T,Gouma P I,Frankel G S.Role of grain boundary precipitates and solute-depleted zone on the intergranular corrosion of aluminum alloy 7150[J].Corrosion,2002,58(8):687-697.
• [9]Avan A.Optimization of the strength and intergranular corrosion properties of the 7075Al alloy by retrogression and re-aging[J].Zeitschrift fuer Metallkunde,1989,80(3):170-172.
• [10]СИЛАЕВАВИ,СОЛОВЬЕВАТВ.变形铝合金B95Oч的双重淬火[J].谢燮揆,译.王祝堂,校.轻金属,1995,(7):57-59.
• [11]Robson J D,Prangnell P B.Predicting the recrystallized volume fraction in AA7050 hot rolled plate[J].Materials Science and Technology,2002,18(6):607-619.
• [12]Morere B,Maurie C,Shahani R,et al.The influence of Al3Zr dispersoids on the recrystallization of hot-deformed AA7010 alloys[J].Metallurgical andMaterials Transcation A,2001,32A:625-632.
• [13]LIU Sheng-dan,ZHANG Xin-ming,CHEN Ming-an.Effect of Zr content on quench sensitivity of AlZnMgCu alloys[J].Tran Nonferrous Met Soc China,2007,17:787-792.
• [14]刘胜胆,张新明,黄振宝.固溶处理对高纯7055铝合金组织的影响[J].材料热处理学报,2006,27(3):54-59.
• [15]Deschamps A,Bréchet C.Nature and distribution of quench-induced precipitation in an Al-Zn-Mg-Cu alloy[J].Scripta Materialia,1998,39(11):1517-1522.
• [16]Dorward R C,Beerntsen D J.Grain structure and quench rate effects on strength and toughness of AA7050 Al-Zn-Mg-Cu-Zr alloy plate[J].Metallurgical andMaterials Transactions A,1995,26:2481-2484.
• [17]Berg L K,Gjnnes J,Hansen V,et al.GP-zones in Al-Zn-Mg alloys and their role in artificial aging[J].Acta Mater,2001,49:3443-3451.
• [18]Robinson M J,Jackson N C.The influence of grain structure and intergranular corrosion rate on exfoliation and stress corrosion cracking of high strength Al-Cu-Mg alloys[J].Corrosion Science,1999,41:1013-1028.

文章评论(Comment)：