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Trans. Nonferrous Met. Soc. China 23(2013) 3697-3703 Effects of alloying and deformation on microstructures and properties of Cu-Mg-Te-Y alloys Liang CHEN, Bing-wen ZHOU, Jian-ning HAN, Yan-yan XUE... alloys. Key words: Cu-Mg-Te-Y alloys; alloying; deformation; mechanical properties; electrical conductivity 1 Introduction Pure copper and copper alloys have been widely applied in many technique......
, Si, Cu-Ce and Cu-Mg intermediate alloys were melted in the induction furnace. The Cu-Ce and Cu-Mg intermediate alloys were added in order to avoid the melting loss of pure Ce and Mg...Trans. Nonferrous Met. Soc. China 27(2017) 1096-1104 Corrosion behavior of novel Cu-Ni-Al-Si alloy with super-high strength in 3.5% NaCl solution Jia-jun ZHU1,2, San-hua LI3, Lei-nuo SHEN3, Wu-lin......
文章编号:1004-0609(2007)12-1905-11 Al-Cu-Mg-Ag合金析出相的研究进展 刘志义,李云涛,刘延斌,夏卿坤 (中南大学 材料科学与工程学院,长沙 410083) 摘 要:Al-Cu-Mg-Ag合金是在Al-Cu-Mg系合金基础上开发的新型合金.根据成分的不同,该合金的常见析出相有θ′,S′和Ω相,其中在基体{111}面析出的Ω相具有较高的沉淀硬化能力和热稳定性,使得Al-Cu-Mg-Ag成为一种新型中温高强铝合金.在简要介绍该合金研究过程的基础上,回顾该合金强化相的相组成,相的析出序列和热稳定性；同时总结以Ω相为主要强化相的合金体系合金化研究进展；并对该合金的研究方向进行展望. 关键词:Al-Cu-Mg-Ag合金；热稳定性；析出序列；Ω相；合金化 中图分类号:TG 146.4 文献标......
效；微结构；相界面；性能 文章编号:1004-0609(2017)-07-1323-14 中图分类号:TG146.2 文献标志码:A 时效铝合金是指具有时效硬化能力的铝合金.常用时效铝合金包括Al-Cu-(Mg)(2xxx系),Al-Mg-Si (6xxx系)和Al-Zn-Mg-(Cu)(7xxx系)系列.随着铝合金的发展,发现一些其他合金元素也具有时效强化能力,例如Al-Cu-Li系,Al-Mg-Sc系等.这些合金元素单独添加或复合添加都能产生明显的时效强化能力,是由于合金元素的固溶度随温度-时间的变化而产生的纳米尺度的时效析出相能够有效阻碍位错的运动原因.时效相增加合金塑性变形的难度,也就是提高了合金的强度. 表1 一些常用元素在铝基体中的最大溶解度和温度[1......
Trans. Nonferrous Met. Soc. China 26(2016) 1183-1190 Multistage-aging process effect on formation of GP zones and mechanical properties in Al-Zn-Mg-Cu alloy Rong-xian YANG1,2, Zhi-yi LIU1,2, Pu-you... behavior of an Al-Zn-Mg-Cu alloy were investigated by performing tensile tests and fatigue crack propagation (FCP) tests. The tensile results show that lower aging temperature modified retrogression and re......
tolerance of aluminum alloy [18]. For instance, by adopting a small pre-rolling deformation (6.1%), HUANG et al [19] successfully improved the damage tolerance of Al-Cu-Mg alloy plates. This study focuses... and Performance, 2010, 19(6): 841-847. [8] KUMAR K S, BROWN S A, PICKENS J R. Effect of a prior stretch on the aging response of an Al-Cu-Li-Ag- Mg-Zr alloy [J]. Scripta Metall Mater, 1990, 24: 1245-1250. [9......
基于人工神经网络的Cu与Mg低质量比Al-Cu-Mg合金时效强化预测模型 侯延辉1, 2,刘志义2,邓才智2,刘延斌2,马飞跃2 (1. 西南交通大学 应用力学与工程系,四川 成都,610031； 2. 中南大学 材料科学与工程学院,湖南 长沙,410083) 摘 要:通过硬度检测和透射电镜(TEM)观察,研究低Cu/Mg质量比Al-Cu-Mg合金时效强化机理,建立神经网络预... Ageing prediction model for low mass ratio of Cu to Mg of Al-Cu-Mg alloy based on neural network HOU Yan-hui1, 2, LIU Zhi-yi2, DENG Cai-zhi2, LIU Yan-bin2, MA Fei-yue2 (1. Department of Applied......
properties and energy absorption characteristics of open cell aluminum alloy foams (Al-Mg-Si alloy foam and Al-Cu-Mg alloy foam) produced by infiltrating process were studied. Two kinds of heat... Microstructures of aluminum alloy foams used in this study in as-fabricated condition: (a) Al-Mg-Si alloy foam; (b) Al- Cu-Mg alloy foam 2.2 Compression test The split......
rate of combustion synthesis of an intermetallic compound[J]. Powder Technology, 1998, 95: 175-181. [15]Feufel H, Sommer F. Thermodynamic investigations of binary liquid and solid Cu-Mg and Mg-Ni alloys and ternary liquid Cu-Mg-Ni alloys[J]. Journal of Alloys and Compounds, 1995, 224: 42-54. (编辑李向群) 基金项目: 甘肃省自然科学基金资助项目(3ZS042-B25-004) 收稿日期: 2005-03-22; 修订日期: 2006-06-13 通讯作者: 陈秀娟, 副教授; 电话......
, 2006, 55(5): 2418-2421. [27] BAILEY N P, SCHI?TZ J, JACOBSEN K W. Simulation of Cu-Mg metallic glass: Thermodynamics and structure [J]. Physical Review B, 2004, 69 (14): 144205-144215. [28] 陈 光, 傅...Cu66Ti34合金在4×1013 K/s冷却速度下的玻璃化转变温度,原子的扩散行为.结果表明,通过偶分布函数第一谷的最小值与第一峰最大值之比获得的玻璃转变温度为600 K,与相近成分Cu50Ti50的实验值接近；在800 K时,Cu和Ti的MSD最大值均小于1×10-2 nm2,合金熔体很粘稠；在600 K时,曲线的斜率降低,在动力学上合金熔体已经凝固.定压比热容与温度成二次分布关系,存在一个峰值温度为......
