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-Mg-Sc冷轧薄板进行220 ℃退火处理,在450 ℃和2.00×10-4 s-1条件下,试样的最大伸长率可达421%.PENG等[13]对Al-Mg-Mn-Sc-Zr冷轧薄板进行稳定化退火处理,在520 ℃和1.67×10-3 s-1条件下伸长率达到690%.KUMAR等[14]对Al-Zn-Mg-Cu-Sc-Zr合金进行固溶,过时效处理热机械处理,最终制成2.3 mm厚的薄板,在475 ℃和... Metals Society of China, 2007, 17(4): 744-750. [14] KUMAR A, MUKHOPADHYAY A K, PRASAD K S. Superplastic behaviour of Al-Zn-Mg-Cu-Zr alloy AA7010 containing Sc[J]. Materials Science and Engineering......
Engineering, 2012, 1: 57-60. [16] CHEN Lu, YAN An, LIU Hua-shan, LI Xiao-qian. Strength and fatigue fracture behavior of Al-Zn-Mg-Cu-Zr(-Sn) alloys [J]. Transactions of Nonferrous Metals Society of China... are presented in Table 1. According to Table 1, the masses of Al, Cu, Mg and Si were accurately calculated and weighed. Then, the alloys were melted in a crucible using an electrical furnace and poured......
; Corrosion, 2009, 60(6): 407-414. [17] KANNAN M B, RAJA V S. Role of coarse intermetallic particles on the environmentally assisted cracking behavior of peak aged and over aged Al-Zn-Mg-Cu-Zr alloy...究[6-21].然而,这些研究工作主要基于较高温度上较短时间的回归处理,在大厚板的时效处理中仍难以应用;本文作者在低温长时过时效的基础上,参考陈康华等[22]研究发明的一种Al-Zn-Mg-Cu系铝合金的时效热处理方法,即预时效-过时效-再时效工艺,研究了不同双级过时效温度下再时效对双级过时效态7B50合金硬度,电导率及拉伸性能的影响,并将双级过时效-再时效处理条件下性能峰值点与峰值时效,双级过时......
on microstructures and properties of ultra-high strength Al-Zn-Mg-Cu alloys [J]. Materials Science and Engineering A, 2011, 528: 7606-7615. [9] Fang H C, Chao H, Chen K H. Effect of Zr, Er and Cr..., Lotsko D V, Senkov O, Miracle D B. Microstructure and mechanical properties of cast and wrought Al-Zn-Mg-Cu alloys modified with Zr and Sc [J]. Materials Science Forum, 2002, 396: 1217-1222. [12] Zou......
C, BEERNTSEN D J. Grain structure and quench-rate effects on strength and toughness of AA 7050 Al-Zn-Mg-Cu-Zr alloy plate [J]. Metallurgical and Materials Transactions A, 1995, 26: 2481-2484 [4.... The influence of a precipitation-free zone on the mechanical properties of an Al-Zn-Mg alloy [J]. Acta Metall, 1968, 16: 327-332. [6] TAKESHI K, OSAMU I. The relationship between fracture toughness......
Al-0.16Zr-0.18Cr-0.3Yb合金对应的再结晶起始温度分别为425,425,375和475 ℃. 参考文献: [1] KANNAN M B, RAJA V S. Enhancing stress corrosion cracking resistance in Al-Zn-Mg-Cu-Zr alloy through inhibiting recrystallization[J... Materialic, 2014, 63: 73-85. [3] FANG H C, CHEN K H, CHEN X, et al. Effect of Cr, Yb and Zr additions on local corrosion of Al-Zn-Mg-Cu alloy[J]. Corrosion Science, 2009, 51: 2872-2877. [4] KNIPLING K E......
aluminum alloy[J]. Mater Sci Eng A, 1997, 238(2): 293-302. [16] FANG H C, CHAO H, CHEN K H. Effect of recrystallization on intergranular fracture and corrosion of Al-Zn-Mg-Cu-Zr alloy[J]. Journal...-Zn-Mg-Cu 系铝合金的应用愈加广泛,同时对其性能也提出了越来越高的要求.高强 Al-Zn-Mg-Cu 系铝合金是一种可热处理强化的铝合金,通过热处理可提高其性能[1],以满足更多零部件的使用要求,而较为常规的热处理方法为固溶+时效处理.因单级固溶的温度均在共晶熔点之下,较高熔点的杂质相不能固溶完全,存在许多不足,近几十年越来越多的研究人员通过多级强化固溶来改善铝合金的性能,发现多级固溶温度能够......
Trans. Nonferrous Met. Soc. China 27(2017) 1476-1482 Microstructural evolution of new type Al-Zn-Mg-Cu alloy with Er and Zr additions during homogenization Hao WU, Sheng-ping WEN, Jun-tai LU, Zhen... Abstract: A comprehensive study on the microstructural evolution of a new type Al-Zn-Mg-Cu-Er-Zr alloy during homogenization was conducted by optical microscope, scanning electron microscope, transmission......
in Al-Zn-Mg-Cu-Zr alloy through inhibiting recrystallization[J]. Engineering Fracture Mechanics, 2010, 77(2): 249-256. [8] 王荣, 鄢国强, 李光福, 等. 7020铝合金列车车钩梁开裂原因与机理[J]. 中国腐蚀与防护学报, 2008, 28(4): 240-245. WANG... Baolan. Investigation of stress corrosion cracking of 7xxx series aluminum alloys[J]. Corrosion Science and Protection Technology, 2001, 13(4): 218-222. [14] 张志野, 潘清林, 李波, 等. 含Sc的Al-Zn-Mg-Zr合金应力腐蚀开裂敏感性研究......
. Role of interfaces in kinetics of internal shape changes [J]. Metal Science, 1982, 16(1): 1-14. [12] CURLE U A, CORNISH L A, GOVENDER G. Predicting yield strengths of Al-Zn-Mg-Cu-(Zr) aluminium... Science and Engineering A, 2015, 633: 17-19. [14] DENG Yun-lai, ZHANG Yun-ya, WAN Li, ZHU Alf-a, ZHANG Xin-ming. Three-stage homogenization of Al-Zn-Mg-Cu alloys containing trace Zr [J......