共搜索到23371条信息,每页显示10条信息,共2338页。用时:0小时0分0秒687毫秒
electrode materials, particularly Pb-alloy anode and Ti-based electrocatalytic coating anode were conducted. Detailed investigations have already been carried out for the binary alloys (Pb-Ca, Pb-Co... also analyzed. 2 Experimental 2.1 Raw materials and major equipment The main raw materials were Pb-0.8%Ag (mass fraction) alloy, MSO4 filler particles and release agent. The main experiment......
Fig.1 Compositions of Mg-Zn-La alloys at 400 ℃ (● Single phase sample; □ Two-phase samples; ▲ Three-phase samples) 3.1 Equilibrium of T-phase alloy at 400 ℃ Fig.2 shows the typical microstructures... of Mg46Zn45.5La8.5 and Mg67Zn25La8 single phase alloys are nearly the same, and only the values of 2θ are different. The values of 2θ of Mg46 Zn45.5La8.5 alloy are larger than those of Mg67Zn25La8 alloy......
, 均使合金耐腐蚀性能得到改善. 关键词: 铝青铜; 腐蚀; 耐蚀性能; 腐蚀速率; 脱铝 中图分类号: TG174 文献标识码: A Corrosion behavior of Cu-14Al-X bronze alloy in 3.5%NaCl solution LI Wen-sheng1, WANG Zhi-ping1, LU Yang1, YUAN Li-hua1, XU... of Cu-14Al-X alloy in NaCl solution 图2 铝青铜在3.5%NaCl溶液中的极化曲线 Fig.2 Polarization curves of bronzes in 3.5%NaCl 表3 合金在介质中的稳定电位 Table 3 Stable potential of bronzes......
, literatures about bonding of aluminum alloy and Al-MMCs with the aid of vibration technique havent been reported. In this study, the SiCp/ZL101A composites were bonded by the vacuum-free vibration liquid... with ZL101A aluminum alloy. The samples were cylindrical rods with a size of d10mm×40mm. The filler metal was the Zn-Al-Cu hyper-eutectic (η+(β+η)+(β+η+ε)) alloy, its chemical composition and liquidus......
than recrystallization. The softening characteristics of the precipitation and dispersion strengthened materials are similar under such conditions. A molybdenum alloy, TZM (0.5%Ti, 0.08%Zr, balance Mo) capping material brazed onto a copper shank has superior resistance to deformation compared with the copper alloy electrodes[10]. However, heat cracking of the molybdenum alloy surface is one......
simulation, and the forming limit diagrams of aluminum alloy, magnesium alloy and their composites were established[2-6]. The influence of process parameters and die structure on the surface damage... of 1.0 at container/billet interface is chosen since the friction coefficient is found to be higher than 0.95 (approximately 1.0) when the temperature of magnesium alloy is above 350 °C[2]. An oil......
and quite high tensile strengths. LEE et al[14] investigated the behavior of melt extrusion for Al-Cu alloys. In the process, the molten Al-Cu alloy was held in a shot sleeve until the solid fraction... experiments The raw material used in this work was aluminum 356 alloy or JIS AC4C. The chemical composition of the alloy is shown in Table 1. Table 1 Chemical composition of aluminum 356 alloy (mass......
temperature in air. Thus, the mechanical properties and the oxidation resistance of these materials are of great importance. Due to the complexity of alloy constituent, oxidation behavior exists many differences [2-6]. Therefore, a number of oxidation behavior of alloys have been proposed in the alloy systems. For instance, LITZ et al [7] found oxidation behavior of IN738 and IN993 alloys; LOU et al [8......
for homogenization treatments were always obtained by trial and error. HAN and ZHANG[8] investigated the segregation of Nb and Al in GH783 alloy and found that the eutectic microstructure could be eliminated completely after homogenization for 30 h. PAN et al[9] studied the microstructure evolution during homogenization in as-cast ЭП742 alloy and proposed a two-step homogenization schedule......
grain refinement approach. The application of a pulsed magnetic field (PMF) in the solidification of alloy is considered an effective method to refine grains and improve the mechanical properties of the alloys, and it has been paid more attention in recent years. ZI et al [6-7] found that a strong PMF can significantly refine the solidification structures of aluminum alloy. BAN et al [8] found......