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also affect the solid solution strengthening and decrease the number of γ″ and γ′ to weak the effect of precipitation strengthening. From the analysis of Laves phase in the welding seam, it can......
[4,17,18,21,27-33]. AlN-Al composites can be produced via various solid or liquid state based fabrication methods such as spark plasma sintering [27], pressureless [13], pressure [12] or vacuum [14.... Impurities such as oxygen are solid-dissolved in AlN crystal lattices or a composite oxide forms, such as Al-O-N, which hinders the propagation of the thermal oscillations of the lattice......
of solid solution of the AA5083 alloy upon exposure to elevated temperatures[J]. Materials Science Forum, 2000, 331/337: 1089-1094. [3] 聂 波, 尹志民, 姜 峰, 蒋春丽, 丛福官. 稳定化退火工艺对铝镁钪合金力学和腐蚀性能的影响[J]. 材料热处理学报, 2008......
and thickening of Mg(OH)2 surface layer, which hinders the hydrogen atoms from diffusing in or out, in alkaline solution [29]. Moreover, the hydrogen storage material suffers an inevitable volume change during..., 2010, 20(3): 405-411. [12] SAKINTUNA B, LAMARI-DARKRIM F, HIRSCHER M. Metal hydride materials for solid hydrogen storage: A review [J]. International Journal of Hydrogen Energy, 2007, 32(9......
), and a compatible interface with Mg [10-12]. Also, silicon has a low maximum solid solubility around 0.003% (mole fraction) in Mg, which promotes the precipitation formation from liuquid during... by optical microscopy (OM) after mechanical polishing and etching for 30 s using a solution of 1 g oxaldehyde, 1 mL nitric acid, 1 mL acetic acid in 150 mL water. Microstructure at four typical......
samples were polished, etching was carried out in a solution composed of 4.2 g picronitric acid, 10 mL ethanediol, 70 mL ethanol, 10 mL acetic acid and 10 mL distilled water. The microstructure... in the DCF process, the followed forging procedure causes some plastic deformation. Consequently, liquid-solid slurry flows longer into the overflow launders. Hence, a longer overflow is found......
solution was evaporated and crystallized in vacuum. The sulfur samples were ground to fine powder with the size of 75-38 mm and stored at 4 °C. The samples were characterized by the XRD and Raman spectra... and solid sulfur allotropes [J]. Topics in Current Chemistry, 2003, 231: 31-98. [14] LAISHELY E J, BRYANT R D, KORRYN B W, HYNE J B. Microcrystalline structure and surface area of elemental sulphur......
boundaries during annealing. The effect is known as Zener drag pZ [21]. On the other hand, the higher content of impurity atoms in solid solution would drag the boundary migration as well, which is known......
melting point (1668 °C) and high solid solubility in the gas phase (such as O2, N2 and H2). The requirement of such specific processing conditions boosts the titanium material prices, as a result, titanium... in a 5 mL KOH (40%) + 5 mL H2O2 + 20 mL H2O solution at 60 °C for 30 min, and observing the crystal grain sizes and shapes under a field-emission scanning electron microscope (FE-SEM, JEOL, 6500F......
of Mg and solid solution alloys containing Li or Y[J]. Acta Materialia, 2001, 49: 4277-4289. [3] 胡水平, 王 哲. 织构和晶粒尺寸对AZ31镁合金薄板成形性能的影响[J]. 中国有色金属学报, 2012, 22(9): 2424-2429. HU Shui-ping, WANG Zhe......