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alloy; thick plate; microstructure; corrosion anisotropy 1 Introduction 7050-T7451 is an Al-Zn-Mg-Cu-Zr alloy developed to obtain a good combination of high strength, high resistance to SCC and good... alloy plate, whose composition is Zn 6.06%, Mg 2.20%, Cu 2.12%, Zr 0.11%, Fe 0.08%, Si 0.04%, and Al balance. Longitudinal (L), long transverse (T) and short transverse (S) are conventionally utilized......
Processing Technology, 2009, 209(4): 2021-2027. [5] CHEN Kang-hua, FANG Hua-chan, ZHANG Zhuo, CHEN Xiang. Effect of Yb, Cr and Zr additions on recrystallization and corrosion resistance of Al-Zn-Mg-Cu... of AA7050 Al-Zn-Mg-Cu-Zr alloy plate[J]. Metallurgical and Materials Transactions A, 1995, 26(9): 2481-2484. [11] CHEN Jun-zhou, ZHEN Liang, YANG Shou-jie, SHAO Wen-zhu, DAI Sheng-long. Investigation......
-ping, YAN Xiao-dong. Microstructure evolution of Al-Zn-Mg-Cu-Zr alloy during hot deformation [J]. Rare Metals, 2010, 29(4): 426-432. [10] PRASAD Y V R K, RAO K P. Mechanisms of high temperature... deformation. The hot deformation activation energy of the alloy was given as 146 kJ/mol. However, in the bulk of industrial Al-Zn-Mg-Cu alloy, which contains a large number of dispersion particles precipitated......
to their high strength and toughness. In recent decades, three approaches are commonly used to develop Al-Zn-Mg- Cu alloy, i.e. changing the content of main alloying elements (Zn, Mg, Cu), trace elements (Cr, Zr... Hui, JIN Neng-ping, CHEN Jiang-hua. Hot deformation behavior of Al-Zn-Mg-Cu-Zr aluminum alloys during compression at elevated temperature [J]. Transactions of Nonferrous Metals Society of China, 2011......
. Forging technology of aluminum alloy[M]. Beijing: metallurgical Industry Press, 2012: 386-387. [17] ZHANG Hui, JIN Neng-ping, CHEN Jiang-hua. Hot deformation behavior of Al-Zn-Mg-Cu-Zr aluminum alloys...[3-4].目前,国内外学者对多向锻造的研究主要集中在Mg合金[5-7],TiAl合金[8-9],铜合金[10-11],不锈钢[12]与7xxx铝合金[13-14]等方面:郭强等[6]系统研究了Mg-Al-Zn系合金高温多向压缩行为,研究认为镁合金的多向压缩大变形晶粒细化机制为变形带诱发晶粒破碎,同时伴随着动态再结晶的发生；BELYAKOV等[10]对多晶纯铜的多向锻造过程进行了研究,发现随着变形量......
fracture behavior of Al-Zn-Mg-Cu-Zr(-Sn) alloys [J]. Transactions of Nonferrous Metals Society of China, 2013, 23(10): 2817-2825. [10] LIU Jun-tao, ZHANG Yong-an, LI Xi-wu, LI Zhi-hui, XIONG Bai-qing...-Kister-Muggianu model [30] were used for the calculation of thermodynamic properties of Cu–Al–Zn ternary system. Within the computational phase studies of quaternary Al-Cu-Mg- Zn system, SEIFERT et al......
Materialia, 1997, 45(12): 5119-5128. [18] 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... and Steel Research, 2007, 19(6): 52-56. [10] Xu D K, Rometsch P A, Birbilis N. Improved solution treatment for an as-rolled Al-Zn-Mg-Cu alloy (Part II): Microstructure and mechanical properties[J......
and properties of a novel Al-Zn-Mg-Cu-Zr alloy[J]. Science in China Series E: Technological Sciences, 2009, 52(1): 67-71. [9] CHEN Song-yi, CHEN Kang-hua, CHEN Xue-hai, CENG Qing-hua. Effect of heat... strength, elongation and conductivity of alloy are 515 MPa, 487 MPa, 11.7%, 38%(IACS), respectively. Key words: 7085 aluminum alloy; two-step aging; microstructure; property Al-Zn-Mg-Cu系铝合金具有高强度,低密度等特点,被广......
, CHAO H, CHEN K H. Effect of recrystallization on intergranular fracture and corrosion of Al-Zn-Mg-Cu-Zr alloy[J]. Journal of Alloys and Compounds, 2015, 622: 166-173. [12] , ANDRIEU E, ODEMER G, ALEXIS J..., HE Y B, LI W B, LIANG W J. Microstructure and mechanical properties of Al-Cu-Mg-Mn-Zr alloy with trace amounts of Ag[J]. Materials Science and Engineering A, 2009, 525: 128-132. [16] RINGER S P, HONO K......
: 717-728. [14] LI G F, ZHANG X M, ZHU H F. Effect of minor Er and Y addition on homogenization of as-cast Al-Zn-Mg-Cu-Zr alloys [J]. Journal of Aeronautical Materials, 2010, 30: 1-6. [15] CHEN K H, LIU H..., PAN Qing-lin, XIAO Yan-ping, HE Yun-bin, LIU Xiao-yan. Microstructural evolution of ultra-high strength Al-Zn- Mg-Cu-Zr alloy containing Sc during homogenization [J]. Transactions of Nonferrous Metals......
