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[12-18]. On the other hand, Bi is a non-toxic metal and exhibits the same solidification microstructure with lead in aluminum alloy, i.e., globules dispersed in the matrix [10,13-18, 20-27], which acts... (cellular) microstructure appears to be a non-desirable microstructural mesh for wear resistance purposes, since it provides rapid removal of the Bi droplets present in the intercellular region, depleting......
of aluminum and its alloys to resist corrosion by adopting appropriate surface modification techniques including electro- chemical plating, chemical conversion, physical vapor deposition, laser cladding......
-Si alloy was about 115 MPa and that of Zn-reinforced composite was about 85 MPa. Recently, much has been done to improve the FSP technology [19-21]. MOUSAVIZADE et al [22] applied the laser to heat a localized region ahead of the FSP tool to provide sufficient plasticity during the FSP of the IN738LC superalloy. They found that laser-assisted friction stir processing (LAFSP) resulted in a defect......
of Ti-6Al-4V alloy treated by laser shock peening [J]. Transactions of Nonferrous Metals Society of China, 2019, 29(7): 1439-1448. [6] YAZDI R, GHASEMI H M, ABEDINI M, WANG C, NEVILLE A. Oxygen......
equilibrium towards the formation of the end products. (2) Pressing the mixture into a tablet (with a force of 100 kN). (3) Tablet burning at the temperature of 800 °C for 30 min. (4) Grinding the sintered... for 5 min. To remove the by-products of the reduction reaction between silicon and aluminum, as well as non-metallic inclusions, gases and oxide films, metal was treated with the covering-refining flux......
sol-gel film, inner layer and oxide/hydroxide layer, respectively. Moreover, three constant phase elements (CPE), including CPEf, CPEi and CPEox-hyd, were used to account for the non-ideal capacitive...]. Progress in Organic Coatings, 2019, 133: 44-54. [17] LI Y, GUAN Y, ZHANG Z, YNAG S. Enhanced bond strength for micro-arc oxidation coating on magnesium alloy via laser surface microstructuring [J......
and a fine quartz sand, respectively. The particle sizes of these two soil components were analyzed using a laser granulometer, and the results are shown in Figure 1. Different kaolin contents (i.e.... its water content to 21%; 3) the wet soil was stored in an airtight container for over 2 d to reach a good water equilibrium; 4) the cured soil was filled into a cylindrical mould in three layers......
in Engineering, 2018, Article 1652312. DOI: 10.1155/2018/ 1652312. [15] LIU C, LIU X L, PENG X C, WANG E Z, WANG S J. Application of 3D-DDA integrated with unmanned aerial vehicle-laser scanner (UAV-LS...-NICIEZA C. Identification of non-pyramidal key blocks in jointed rock masses for tunnel excavation [J]. Computers and Geotechnics, 2005, 32(3): 179-200. DOI: 10.1016/ j.compgeo.2005.01.004. [17] LIU......
Letters, 2018, 10(1): 145-148. [5] BEECHER S J, PARSONAGE T L, MACKENZIE J I, SLOYAN K A, GRANT-JACOB J A, EASON R W. Diode-end-pumped 12 W Yb:Y2O3 planar waveguide laser[J]. Optics Express, 2014, 22(18..., and the precipitation crystallization process of yttrium carbonate was analyzed as well. The results show that the precipitation crystallization process of yttrium carbonate is a dynamic equilibrium......
solution was 11.6 times that of Si in the state of non-solid solution [4]. The equilibrium solid solubility of Si in Al matrix is only 0.05 wt.% at room temperature. Hence, the amount of Si in the state of non-solid solution is more than that of Si in the state of solid solution when the Si content is far more than 0.05 wt.% in Al alloys. As a result, the effect of Si in the state of non-solid solution......
