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(a)),而Cu/Li比较低的2196铝锂合金保温3~7 h才出现T1相析出的第一个各向异性X射线散射条纹(见图7(b)),即说明Cu/Li比较高时,T1相析出孕育期较短[32]. 图6 T8态时效1460铝锂合金SAED谱及TEM照片[23] Fig. 6 SAED patterns and TEM images of T8-aged 1460 Al-Li alloy...(Cu)/x(Li)的关系 Fig. 9 Strength of T8 peak-aged Al-(3.2~4.4)Cu-(0.8~1.5)Li-0.4Mg-0.4Ag-0.4Zn-0.1Zr alloy sheet with different Cu and Li concentrations as function of total Cu and Li mole fraction......
图；计算模型 中图分类号:TG 386; V 261 文献标识码:A Forming limit diagram and calculating model for 5A90 Al-Li alloy sheet at elevated temperature MA Gao-shan, WAN Min, WU Xiang... to determine the forming limit diagram (FLD) of 5A90 Al-Li alloy sheet at various temperatures. The effects of forming temperature on the FLD were investigated experimentally at the forming speed......
Al-Li alloy (mass fraction, %) 采用TecnaiG220型透射电镜(TEM)进行焊接接头各部位微观组织观察.TEM薄膜试样先机械减薄至0.1 mm左右,然后进行双喷减薄,双喷液为25%硝酸和75%甲醇混合溶液(体积分数). 2 结果与讨论 2.1 摩擦搅拌焊孔洞缺陷 采用圆柱形搅拌头进行摩擦搅拌焊时,搅拌头前进速度(焊接速度)与旋转速度不匹配将... 2 Tensile property of FSW joint of 2195-T8 Al-Li alloy prepared with different parameters and pins 接头组织及其力学性能.如采用圆柱形搅拌头,前进速度及旋转速度分别为150 mm/min和1000 r/min时,焊接接头抗拉强度仅为343 MPa；而采用带螺纹搅拌头,前进速度及旋转速度......
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words: Al-Li alloy; molten salt electrolysis; back electromotive force; current density ...合金并且根据式(2)求出各自的电流效率,实验结果如表1所列. 表1 不同实验条件下电解铝锂合金的实验结果 Table1 Results of preparation of Al-Li alloy by electrolysis under different conditions 1) 电流效率的研究 从表1可知,在阳极电流密度为0.16 A/cm2时,电流......
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ageing treatments on the microstructure and mechanical properties of Al-Cu-Li-Mg-Mn-Zr alloy were investigated.Compared with T6 treatment, higher mechanical properties can be obtained by multi-stage... treatment) than that of the alloy pre-aged at lower temperature then at elevated temperature. Key words: Al-Li alloy; ageing; microstructure; mechanical property 铝锂合金常用热处理为T6与T8工艺. 研究表明[1-3], 采用T6热处理可使合金......
中图分类号:TG146.2 文献标志码:A Flow behavior and constitutive equations of Al-Cu-Li-Mg-Mn-Zn-Ag alloy during isothermal compression... of 0.012568 mm2/N. The effects of strain rate and temperature on the hot deformation behavior were represented by Zener-Hollomon parameter including Arrhenius term. Key words: Al-Li alloy; flow stress......
Trans. Nonferrous Met. Soc. China 28(2018) 2151-2161 Microstructures evolution and mechanical properties disparity in 2070 Al-Li alloy with minor Sc addition Dan-yang LIU1, Jie-xia WANG1, Jin-feng.... Key words: Al-Li alloy; Sc addition; microstructure; mechanical properties 1 Introduction The studies on the effect of introducing Sc into Al alloys began in the Soviet Union in 1960s [1]. In order......
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