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words: Mg-8Zn-4Al-1Ca alloy; age hardening; Ca2Mg6Zn3; 1 Introduction Mg-Zn-based alloys have a remarkable age-hardening response, when typically subjected to artificial aging at temperatures above...] and GENG et al [12] have studied the effect of Ca additions on age-hardening and microstructure of Mg-Zn-based alloys. They indicated that Ca could provide significant precipitation hardening. In addition......
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is higher than that of the regression model. Key words: aluminum alloy; age forming; springback; tensile strength; orthogonal experiment; artificial neural network 1 Introduction Al-Li alloys have been...Trans. Nonferrous Met. Soc. China 25(2015) 1043-1049 Springback and tensile strength of 2A97 aluminum alloy during age forming Hong-ying LI, Xiao-chao LU School of Materials Science and Engineering......
microscopy (TEM) and hardness tests. The amount of age hardening is not large as compared to the large microstructural variations during aging. TEM observations have revealed that the L21-type Ni2AlTi...; Ni2AlTi; age-hardening; mechanical property; precipitate; [全文内容正在添加中] ......
alloys, such as Mg-Y, Mg-Sc, Mg-Dy, Mg-Gd and Mg-Sm system[6-12]. Among them, Mg-Gd system is one of the most promising candidates due to the remarkable age-hardening response and very good thermal... and Engineering, 2005, A395(1/2): 301-306. [15] HONMA T, OHKUBO T, KAMADO S, HONA K. Effect of Zn additions on the age-hardening of Mg-2.0Gd-1.2Y-0.2Zr alloys [J]. Acta Materialia, 2007, 55(12): 4137-4150......
, %) Table 2 Ageing processes for alloys in practice 3 Results and discussion 3.1 Hardening behavior The age hardening curves for the Al-Zn-Mg-Cu-Li alloys and the corresponding Al-Zn-Mg-Cu alloys... ℃ or 160 ℃. From the hardening curves, we can conclude that the hardening effect of the double-aged or multi-age Li-containing alloys is equivalent to that of Li free alloys. Fig.1 Hardness curves......
于镁合金的应变硬化理论模型. 关键词:镁合金;应变硬化行为;位错滑移;孪生 中图分类号:TG146.2 文献标志码:A Research progress of strain hardening behavior at room temperature in wrought magnesium alloys SONG Bo1, 2, XIN... of Science and Technology, Chongqing 401123, China) Abstract: Some aspects of the present research on the strain hardening behavior at room temperature in wrought magnesium alloys were reviewed......
of Queensland摘 要:The influence of Zn on the strain hardening of as-extruded Mg-x Zn(x = 1, 2, 3 and 4 wt%) magnesium alloys was investigated using uniaxial tensile... phases in the as-extruded Mg-Zn magnesium alloys. Average grain sizes of the four as-extruded alloys were about 17.8 μm. With increasing Zn content from 1 to 4 wt%, the strain hardening rate......
Working hardening behaviors of severely cold deformed and fine-grained AZ31 Mg alloys at room temperatureCHAO Hong-ying, SUN Hong-fei, WANG Er-de(School of Materials Science and Engineering, Harbin... the cold drawn and recrystallized materials.Key words:AZ31 magnesium alloys; work hardening; cold drawing; grain size; cold deformation......
words: springback; creep age forming; double curvature bending; 2124 aluminum alloy 1 Introduction Creep age forming (CAF), a novel process which combines age-hardening and stress-induced deformation, has..., and the combined effect of stress relaxation due to creep and age hardening due to precipitation acted until the end of the second stage; in the last stage, the specimen was retrieved and could not return......