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. Influence of pre-deformation on aging precipitation behavior of three Al-Cu-Li alloys[J]. Acta Metallurgica Sinica, 2017, 30(2): 133-145. Effect of Ce on structures and tensile properties of high... and tensile tests, the effect of 0.11% Ce (mass fraction) addition on structures and tensile properties of a high-strength Al-Cu-Li alloy with T8 aging (5% cold rolling pre-deformation and aging......
on this mechanism. The effect of pre-deformation on the creep properties of AZ61+3%Ca alloy reveals that the creep resistance of the alloy depends on the continuity of (Mg,Al)2Ca phase. It is decreased... by pre-deformation annealing, hot compression and ageing [J]. Transactions of Nonferrous Metals Society of China, 2019, 29: 976-983. [4] DING Z B, ZHAO Y H, LU R P, YUAN M N, WANG Z J, LI H J, HUA H O U......
processes on tensile and corrosion properties of 2A97 Al-Li alloy were investigated. The results show that, undertaken with heat treatment process C (pre-deformation 5%+100 ℃, 1.5 h+mid-deformation 5%+160... and 7.4%, respectively. Meanwhile, the intergrannular corrosion resistant is excellent, and the average intergranular corrosion depth is 22 μm. Under the comprehensive function of multi-step deformation......
microscopy (TEM), and tests of springback and mechanical property. The results show that choosing a proper pre-deformation can achieve coupling control of the forming target and the material property...,预拉伸的促进蠕变机制与预拉伸引起厚度减小之间为耦合作用关系,从而造成了回弹率先降后增的规律,且前者的降低回弹作用要明显大于后者的增大回弹作用. 图3 相同曲率半径与热处理条件下的回弹与预拉伸关系 Fig. 3 Relationship between springback and pre-stretching degree with same curvature......
完全相同. 图3 NiTi-NbTi复合材料的约束态不完全逆相变内耗,动态模量测试 Fig. 3 Constroined incomplete transformation damping capacity and relative modulus curves of 5.3% pre-deformed sample heated to 150, 250 and 350... hot compression deformation[J]. Transactions of Nonferrous Metals Society of China, 2013, 23(1): 140-147. [12] 张玉红, 严 彪. 形状记忆合金的发展[J]. 上海有色金属, 2012, 33(4): 192-195. ZHANG Yu-hong, YAN Biao......
the microstructures are influenced by the heat treatment processes. Al-Li alloys usually undertake T8 temper which is a thermomechanical treatment including solution heat treatment, pre-deformation and artificial aging. The nucleation of θ′, S′ and T1 phases is strongly promoted by pre-deformation because the application of plastic deformation prior to aging increases the density of dislocation which can act......
]. It can be seen that the relationship between cold work amount and precipitations is complicated. Revealing the relationship between θ′ and pre-deformation needs further understanding on the process... collected, which agrees to the result of this work. Although a certain pre-deformation amount enhances the hardness of peak-aged alloys due to the fine and disperse precipitates, the hardness......
Z, KAJIWARA S, KIKUCHI T, et al. Effect of pre-deformation at room temperature on shape memory properties of stainless type Fe-15Mn-5Si-9Cr-5Ni-(0.5-1.5)NbC alloys[J]. Acta Materialia, 2005, 53(15...小的预变形量条件下,形变可恢复率较高.当变形量增大时,位错滑移产生不可恢复塑性变形也随之增大,而且随着应力增大,基体内位错密度增大,在加热回复过程中,位错会阻碍马氏体向奥氏体的逆转变,从而抑制形状回复. 图9 沉积态合金在不同预变形量下的形状回复率 Fig. 9 Shape recovery rates of as-deposited alloy under different pre......
. LI et al [12] investigated the effect of pre-deformation on the microstructure of high-purity Al-Cu-Mg alloy and found that the density of S' phase (Al2CuMg) increases while its size decreases with the increase of pre-deformation degree. YIN et al [13] studied the growth behavior of S precipitation phase particles within the grains of high strength Al-Cu-Mg alloy. It was reported......
, LUO Feng-hua. Effects of pre-deformation on microstructure and mechanical properties of 2219 aluminum alloy[J]. Transactions of Materials and Heat Treatment, 2016, 37(4): 45-49. [11] 黄元春, 王也君, 肖政兵... of pre-deformation on the microstructures and properties of 2219 aluminum alloy during aging treatment[J]. Journal of Alloys and Compounds, 2017, 699: 1140-1145. [13] WANG H, YI Y, HUANG S. Influence......
