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regime is not the optimum regime to the RRA treatment of the high-zinc content super-high strength aluminum alloy. Key words: Al-Zn-Mg-Cu alloy; retrogression; re-aging; microstructure; mechanical.... Retrogression and re-aging response of 7475 aluminum alloy [J]. Metal Tech, 1983, 10(10): 386-392. [4] BROWN M H. Three-step aging to obtain high strength and corrosion resistance in Al-Zn-Mg-Cu alloys [P......
and hardenability reduced greatly. Key words: Al-Zn-Mg-Cu alloy; end quenching; hardenability; precipitation 7000系铝合金具有密度低,强度高,较好的加工性能等特点而广泛用于航天,航空和汽车工业等领域.近年来,为了减轻质量,降低成本,飞机结构件向着大型化及整体化的方向发展,对大截面的7000系合金厚板及锻件提出..., ZHANG Yunkang, DENG Pingan, et al. Quench sensitivity of 7085 aluminum alloy[J]. Transactions of Materials and Heat Treatment, 2014, 35(3): 58-62. [6] 刘文军. Al-Zn-Mg-Cu铝合金淬火析出行为及淬火敏感性研究[D]. 长沙: 中南大学材料科......
}再结晶织构,降低了再结晶分数. 关键词:Al-Zn-Mg-Cu合金；均匀化；析出；织构；再结晶 中图分类号:TG146.2 文献标志码:A Effect of Al3Zr precipitation on microstructures and textures of Al-7.81Zn-1.62Mg-1.81Cu alloy plates...} and {123} textures along the β-fiber, inhibit the {001} recrystallization texture and decrease the area and volume fraction of the recrystallization grains. Key words: Al-Zn-Mg-Cu alloy......
retrogression and re-ageing (RRA) heat treatment exhibits higher tensile strength, ductility and conductivity. Key words: Al-Zn-Mg-Cu alloy; Er; heat treatment; microstructures; mechanical properties... [3-4]. Retrogression and re-ageing (RRA) heat treatment can enhance the SCC resistance, while retaining the T6 strength of 7075 alloy [5-6], which is a popular heat treatment for Al-Zn-Mg- Cu alloys......
is formed. Key words: Al-Zn-Mg-Cu alloy; dynamic recovery; high temperature mechanical properties; microstructure 1 Introduction Al-Zn-Mg-Cu alloys possess the advantages of high specific strength... alloy containing Sc. They found that when the alloy is stretched at 475 °C, the elongation can reach 650%. Al-Zn-Mg-Cu alloys, as a forged connecting rod, will inevitably be heated up and serve in high......
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: Al-Zn-Mg-Cu alloy; spray forming; thermomechanical processing; microstructure; fatigue 1 Introduction Aluminum alloys of the Al-Zn-Mg-(Cu) system (7000 series) respond strongly to age hardening... conditions is caused by the dissolution of the remaining phases of the Al-Zn-Mg-Cu system. Fig. 8 DSC curves of 7050 recycled alloy wire under as-swaged and aged conditions, showing peaks related......
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of precipitation strengthening is obtained. Key words: Al-Zn-Mg-Cu; aluminum alloy; retrogression and reaging; PFZ ... Redistribution and re-precipitation of solute atom during retrogression and reaging of Al-Zn-Mg-Cu alloys NING Ai-lin(宁爱林)1, 2, LIU Zhi-yi(刘志义)1, PENG Bei-shan(彭北山)2, ZENG Su-min(曾苏民)1 1. School......
to strengthening of fine grain and substructure and precipitation of Al3(Sc, Zr) particles. Key words: Al-Zn-Mg-Cu alloy; Sc; Zr; microstructure; tensile properties ... 120 ℃, 2 h; (b) Aging 120 ℃, 24 h; (c) Aging 120 ℃, 72 h In Al-Zn-Mg-Cu alloy, the addition of minor Sc, Zr results in the formation of secondary Al3(Sc,Zr) particles after homogenization......
