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. The bottom of the insulation device was refractory cotton to insulate, and the mould was placed at the center of the insulation device. The self-matched 7075 aluminum alloy ingot raw material was adopted in the experiment. The chemical composition is shown in Table 1. Through differential thermal scanning analysis of 7075 aluminum alloy used in the experiment, the solidus and liquidus temperatures......
Trans. Nonferrous Met. Soc. China 20(2010) s832-s836 Semi-solid rheocasting of grain refined aluminum alloy 7075 U. A. CURLE, G. GOVENDER Materials Science and Manufacturing, Council... Research Rheo casting system(CSIR–RCS) and a high pressure die casting machine was successfully performed on Al–5Ti–1B grain refined aluminum alloy 7075. Grain refinement levels used were 0.03% Ti, 0.13% Ti......
多向锻造7075铝合金的结构和性能 李忠奎1,张小明1,张廷杰1,田锋1 (1.西北有色金属研究院,陕西西安,710016) 摘要:在440℃经多向锻造加工成7075铝合金锻件.研究了锻件的显微组织和力学性能随退火温度和T73回火的变化,TEM和SEM用于分析锻件的晶粒和第二相形态.多向和大变形锻造产生平均晶粒尺寸18μm的完全再结晶组织.390℃~450℃退火使晶粒长大到3μm,但位错和第二相分布没有明显改变,这时锻件展现出较低强度和较高延性.T73回火使锻件屈服强度和拉伸强度分别提高280%和210%,而延性同退火样相比并无明显下降,断裂韧性达到51MPa,可以认为这是沉淀强化的贡献. 关键词:7075铝合金; 多向锻造; 显微组织; 力学性能; 7075 aluminum alloy; multi-directional forging; microstructure......
受扭动微动分量控制,表面损伤伴随着明显的剥落.扭转复合微动的磨损机制主要为磨粒磨损,氧化磨损和剥层.关键词:7075铝合金；扭转复合微动；接触载荷；磨损行为Effect of contact load on dual-rotary fretting tribological behavior of 7075 aluminum alloyShen Ming-xue1, 2, Yang sha1... of Process Equipment and Its)Abstract:On an advanced dual-rotary fretting rig, the dual-rotary fretting (DRF) wear behavior of 7075 Al alloy flat against GCr15 steel ball was investigated with various......
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refinement of 7075 Al alloy[J]. Rare Metals, 2009, 28(3): 309-312. [7]WARKE V S, SHANKAR S, MAKHLOUF M M. Mathematical modeling and computer simulation of molten aluminum cleansing by the rotating impeller... rotation speed 图4 除气前后7075铝合金密度和密度指数的比较 Fig. 4 Comparison of densities and density index of 7075 alloy with and without degassing 图5 除气前7075铝合金试样的纵截面和对应的显微组织 Fig. 5 Sectioned......
heating on the thixotropic microstructure of AA 7075 aluminum alloy via SIMA process [J]. Journal of Alloys and Compounds, 2011, 509(2): 402-408. [14] MAHATHANINWONG N, PLOOKPHOL T, WANNASIN J...Trans. Nonferrous Met. Soc. China 27(2017) 2146-2155 Evolution of second phases and mechanical properties of 7075 Al alloy processed by solution heat treatment Xiu-liang ZOU1,2, Hong YAN1,2, Xiao-hui......
Mechanical properties, corrosion behaviors and microstructures of 7075 aluminium alloy with various aging treatments LI Jin-feng(李劲风)1, 2, PENG Zhuo-wei(彭卓玮)1, 2, LI Chao-xing(李朝兴)1, 2, JIA Zhi... corrosion, exfoliation corrosion behaviors and microstructures of 7075 Al alloy was studied, which were compared with the T6, T73 and RRA treatments. Fine h′ precipitate with high density was obtained......
Trans. Nonferrous Met. Soc. China 24(2014) 1109-1116 Forced convection rheoforming process for preparation of 7075 aluminum alloy semisolid slurry and its numerical simulation Bing ZHOU1, Yong-lin... of the melt is reduced and temperature distribution is improved. Key words: 7075 aluminum alloy; forced convection rheoforming (FCR); semisolid slurry; preparation; numerical simulation 1 Introduction 7075......
Trans. Nonferrous Met. Soc. China 24(2014) 2150-2156 Effects of rolling parameters of snake hot rolling on strain distribution of aluminum alloy 7075 Tao ZHANG1,2, Yun-xin WU1,2, Hai GONG1,2, Xi-zhao... distribution of 7075 aluminum alloy plate during snake rolling and symmetrical rolling were analyzed in Deform 3D. Effects of velocity ratio, offset distance between two rolls and pass reduction......
