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for weld metal and HAZ. Key words: 7075-T651 welded joint; instrumented Charpy pendulum; force-time curve; fracture energy; dynamic yield strength 1 Introduction The 7075-T651 is an Al-Zn-Mg alloy...Trans. Nonferrous Met. Soc. China 26(2016) 974-983 Fracture energy evaluation on 7075-T651 aluminum alloy welds determined by instrumented impact pendulum R. R. AMBRIZ1, D. JARAMILLO1, C. 2, F. F......
2018 Abstract: The effects of applying an electromagnetic interaction of low intensity (EMILI) on the microstructure and corrosion resistance of 7075-T651 Al alloy plates (13 mm in thickness) during... lead to welded joints with better microstructural characteristics, improved mechanical properties in the HAZ and reduced electrochemical activity. Key words: 7075-T651 Al alloy; modified indirect arc......
Cell parameters and phases of La0.7Mg0.3Ni2.8Co0.7?xAlx hydrogen storage alloy 晶胞体积的增大主要是由于Al的原子半径大于Ni和Co的原子半径引起的,同时也表明,x值在一定范围内变化时,Al元素可以线性固溶于La2Ni7相中,但随着Al含量的继续增加,La2Ni7相晶胞逐渐膨胀,能量逐渐升高... Charge-discharge cycle curves of hydrogen storage alloy electrodes: (a) La0.7Mg0.3Ni3.5?xAlx; (b) La0.7Mg0.3Ni2.8- Co0.7?xAlx 由此可见,对这两种体系合金,较低的Al替代量可改善合金的最大放电容量和循环性能,而过高的Al含量不利于合金电化学性能的提高.结合合金相结构的分析可以......
and tribological performances were investigated. The results show that when Al content is 4.25%, the graphite content is high, the eutectic graphite is the main morphology and the matrix of the alloy is single γ... Al content is 6.85%, the γ-Ni(Al) solution and a small quantity of (γ+γ′) eutectic make up the matrix of the alloy. When the Al contents are 8.13%-9.94%, γ-Ni(Al) solution disappears, the solidifying......
on molybdenum base TZM (Mo-0.5Ti-0.1Zr-0.02C) alloy[J]. Surface & Coatings Technology, 2012, 206: 3393-3398. [9] KRAKHMALEV P V, STROM E, LI C. Microstructure and properties stability of Al-alloyed...: 739-744. [11] 范华山, 徐 江. 铝元素对MoSi2涂层抗氧化性能的影响[J]. 机械工程材料, 2013, 37(11): 17-20. FAN Hua-shan, XU Jiang. Effect of Al element on oxidation resistance of MoSi2 coating[J]. Materials for Mechanical......
words: AB5-type Co-free hydrogen storage alloy; Al content; crystal structure; electrochemical properties 近年来, 基于AB5型贮氢合金的MH电池在功率特性上的优势以及良好的发展前景, 如何降低合金成本和进一步改善其电化学性能仍在世界范围内深入进行研究[1, 2..., Gulbrandsen-Dahl S, Valen L O, et al. Structural and electrochemical characterization of a melt spun AB5-type alloy[J]. J Alloys and Compounds, 2005, 396: 100-107. [3]Iwakura C, Kazuhiro O, Hiroshi S, et......
质在Al相中的固溶度均增大,但Zn比Mg固溶的比例要大得多.在常压凝固条件下,与纯铝相比,3种合金中Al相的晶格常数均增大.与常压凝固相比,高压凝固Al-9.6Mg合金和Al-11Mg-4.5Zn中Al相晶格常数分别增大了1.178%和0.220%;在Al-17Zn-1.5Mg合金中,Al相晶格常数变化很小.此外,在Al-Mg-Zn合金中,原子半径较大的Mg固溶到Al相中,导致其晶格常数增大,原子... in Al phase in Al-9.6%Mg alloy increases remarkably, and those of Mg and Zn in Al phase in Al-11Mg-4.5Zn and Al-17Zn-1.5Mg alloys increase, however, the proportion of Zn saturating in Al phase......
J. Cent. South Univ. (2018) 25: 2049-2057 DOI: https://doi.org/10.1007/s11771-018-3894-5 Determination of key parameters of Al–Li alloy adhesively bonded joints using cohesive zone model YUAN Shun... propagation in an Al–Li alloy patch-reinforced structure. This paper proposes a method to determine the key parameters of the adhesive layer of adhesively bonded joints in the Al–Li alloy patch-reinforced......
strength and electrical conductivity reach 160 MPa and 64.03% (IACS), respectively. Key words: alloy composition; Al wires; mechanical properties; electrical conductivity; continuous rheo-extrusion 1.... The overhead conductive wires are mainly produced by Al alloy, while it is rather difficult to increase both the electrical conductivity and mechanical properties in the mean time. Therefore, much......
melting process parameters of electron beam cold hearth on the Al element evaporation in TC4 alloy was studied. The results show that when the raw material is the VAR ingot, the secondary ingot is got... components of TC4 alloy. When the raw material is the simple substance Al, the element evaporation loss increases in the melting stage, and it increases with the Al content increasing. Research......