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oxidation loss. Furthermore, these treatments can not remove iron from the aluminum alloy and these harmful Fe-rich phases may turn up again in the processing. The second category is the removal of iron from aluminum alloy. Generally, iron removal from aluminum alloy can be carried out by the precipitation and separation of intermetallic phases from the liquid alloys [11-13]. Several techniques......
phase to the molten alloy, [5] designing a proper alloy composition [6] or adopting an effective heat treatment scheme [7]. The other approach is extrinsic, dedicated to modifying the structure of BMGS... that the plasticity of Zr-Ti-Cu-Ni-Be (Vit1) amorphous alloy was improved after shot-peening in uniaxial compression test. CHOI and HONG [24] also reported an enhanced plasticity of partially crystallized Vit1 BMG......
addition on as-cast microstructure and mechanical properties of Mg-3Sn-2Ca (wt.%) magnesium alloy[J]. Materials Science and Engineering A, 2009, 525(1/2): 112-120. [2] KIM B H, PARK K C, PARK Y H, PARK I M... resistant die cast Mg-Sn-Al-Si alloy[J]. Materials Science and Engineering A, 2005, 413/414: 555-560. [4] 艾延龄, 罗承萍, 刘江文, 黄雁飞. 含Ca, Si镁合金的铸态组织及其形成机制[J]. 金属学报, 2005, 41(1): 49-54.AI Yan-ling, LUO Cheng......
of Pb-Ca alloy, which is a very important material in the storage battery industry. 2 Experimental By addition of bismuth (99.99% purity) into a steel pot containing about 15 kg molten lead (99.99% purity) at 450 °C, the lead-bismuth alloy (0.023% Bi) was obtained. Calcium was added as lead-calcium alloy (1.36% Ca) and magnesium (99.99% purity) as magnesium piece. Five experiments were conducted......
算放电后的电热应力强度因子.结果表明:放电电压对止裂效果存在最优值;在适当的强脉冲电流作用下,裂纹尖端在小范围内被瞬间强化加热,随后在极大的热压应力作用下快速冷却,组织发生明显变化,晶粒得到细化,并围绕裂纹尖端形成等值压缩热应力,对裂纹尖端有"夹紧"作用,进而阻止裂纹扩展.关键词:Al-Mg合金;单边裂纹;微观组织;止裂;电磁热效应Crack arrest of Al-Mg alloy... around the crack tip, which has "clamping" role to the crack tip, and then prevents the crack expansion.Key words:Al-Mg alloy; unilateral crack; microstructure; crack arrest; electromagnetic heating......
Electrodeposition of Zn-Ti alloy in urea-NaCl-ZnCl2 ionic liquidLIU Cheng-hu, HUA Yi-xin, XU Cun-ying, LI Yan, PEI Qi-fei, WU Zhen(Faculty of Metallurgical and Energy Engineering, Kunming University... with crystal size of nearly 0.8 μm is obtained when the mole fraction of ZnCl2 is 10%, the temperature is 80 ℃ and the potential varies from -1.5 to -2V.Key words:Zn-Ti alloy; TiCl4; NaCl; urea-ZnCl2......
energy; Si; hot-dip aluminizing; diffusion reaction 1 Introduction Hot-dip aluminized and hot-dip Zn-Al alloy (Galvalume) coatings are two important methods used to improve the corrosion-resistance... the excessive growth of alloy layer at the coating-steel interface. The reaction between the aluminum melt and the steel substrate is extremely rapid and strongly exothermic [3,4]. The reaction zone......
methods are available and one such method is response surface methodology (RSM). VIJAYAN [5] reported the optimization of FSW process parameters for AA5083 aluminum alloy with multiple responses based... RSM to investigate the effect of FSW process parameters and weld parameters on the tensile strength of AA7075 aluminum alloy. In this work, an empirical relationship was developed relating FSW process......
Trans. Nonferrous Met. Soc. China 23(2013) 1052-1060 Simulation study on non-linear effects of initial melt temperatures on microstructures during solidification process of liquid Mg7Zn3 alloy Rang... the glass forming ability will be. Key words: liquid Mg-Zn alloy; initial melt temperature; microstructure evolution; molecular dynamics simulation; cluster-type index method 1 Introduction......
; friction; wear 1 Introduction The parts used in metallurgical and construction machinery usually suffer from severe friction and wear, the anti-wear alloy coatings are widely applied to improving their wear resistance and prolong their sevice lives [1,2]. However, the values of friciton coefficients of the anti-wear alloy coatings are usually high, thus leading to high energy consumption [3,4......