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Fracture strength of centre surface cracked tensile specimens made of 2219-T87 Al alloy welding S. RAJAKUMAR1, T. CHRISTOPHER2 1. Thanthai Periyar Government Institute of Technology, Vellore-632002... surface cracked tensile plates made of 2219-T87 Al alloy at cryogenic temperatures were correlated using a modified inherent flaw model. Fracture parameters to generate the failure assessment diagram......
; 文献标志码:A Effect of Al content on non-dendritic microstructure of Mg-7Zn magnesium alloy FENG Kai, HUANG Xiao-feng, MA Ying, Zheng, LI Xing-peng, HAO Yuan... alloy was investigated by isothermal heat-treatment. The results indicate that the solid fractions of alloys are declined by elevated temperature when adding Al into Mg-7Zn alloy. With Al content......
: tensile strength; weld reinforcement; 2219-T87 aluminum alloy; TIG welding; digital image correlation (DIC) technique 1 Introduction 2219 alloy is an Al-Cu-Mn ternary alloy with excellent cryogenic... behavior and simulation on tensile test of 2219-T87 aluminum alloy GTAW joints [J]. Transactions of Nonferrous Metals Society of China, 2015, 25(9): 3072-3079. 焊缝余高对2219-T87铝合金TIG焊接头拉伸行为及力学性能的影响 王国庆1,李 权2......
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......
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......
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......
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......
文章编号:1004-0609(2009)11-1948-08 TiAl3对TiC粒子在铝基体中分布及α(Al)晶粒形核的影响 夏天东1, 2,丁万武1, 2,赵文军1, 2,王晓军1, 2,徐仰涛1, 2 (1. 兰州理工大学 甘肃省有色金属新材料省部共建国家重点实验室,兰州 730050; 2. 兰州理工大学 有色金属合金及加工教育部重点实验室,兰州 730050) 摘 要:研究TiC和TiAl3细化工业纯铝时TiAl3的存在对TiC在铝基体中分布及α(Al)晶粒形核的影响,分析Al-Ti-C晶粒细化机制.结果表明:TiC单独作为工业纯铝的晶粒细化剂时,大量TiC被α(Al)晶粒推向树枝晶的晶界处,从而限制了TiC的异质形核作用;当TiC和TiAl3共同作为晶粒细化剂时,在α(Al)晶粒内部出现了大量TiC粒子,大量的TiC粒子成为了α(Al)的结晶核心,并且在......