共搜索到9006条信息,每页显示10条信息,共901页。用时:0小时0分0秒955毫秒
as-prepared and heat-treated conditions. A dendritic Ni-based solid solution phase along with (Nb,Ti)C carbide, Laves, and δ-Ni3Nb secondary phases were developed in the microstructure... relationships between parameters of different MAM methods and microstructure/mechanical properties of various engineering alloys such as Ti-6Al-4V [16,22], stainless steels [15], Ni-based alloys [21......
to the assembly. The clad layer is always a Si-rich AA4xxx alloy that melts during brazing (at around 600 °C), and due to surface tension flows to faying surfaces, produces upon cooling a metallic bond... an inverted tee-joint configuration. They have shown that numerical modelling (based on the minimum potential energy of the equilibrium membrane of the molten metal at the onset of solidification) combined......
and 5.511, respectively, and partly filled the data gaps in the hydrometallurgy of antimony. The presence and distribution of pentavalent antimony compounds under different conditions were analyzed based... constant of Sb5+ with Cl-, which is unknown. There are comprehensive studies on the complex behavior of Sb3+ with Cl- [14]. A theoretical study of the Sb3+-OH--Cl- system, which is based on the complex......
produce metallic Pb and Ag. ZHENG et al [11] obtained concentrates by performing reduction roasting with coal powder, followed by a flotation treatment. The Pb, Zn, and Ag recover rates were 48.38... of Ag is comparatively better, the process is cumbersome, costly, and time-consuming. Therefore, based on the phase characteristics of acid-leaching residue, the authors have developed a method......
decomposition, etc. Besides, based on the commonality and development trend of ISRU, the exploit of mineral resources on the lunar surface in future needs these as main research directions which contains... Geography: Earth and Environment, 2015, 39(2): 137-167. [6] MORRIS R. Origins and size distribution of metallic iron particles in the lunar regolith[C]// MERRILL R G. Lunar and Planetary Science......
(in wt.%) intermediate alloys were added to the molten AZ31 alloy at 740 °C. Then, melts were held at 700 °C for 10 min to homogenize alloying elements before being poured into metallic molds which... results of alloys A, B, and C. As shown in Figures 3(a) and (b), the as-cast AZ31 alloy mainly consisted of α-Mg and Mg17Al12 phases. Based on the XRD and EDS results, the addition of Gd led......
current frequency; Alloy 718 sheet; tensile properties; microstructural evolution; Laves phase 1 Introduction Alloy 718 is a high-performance nickel-based aerospace superalloy originally developed for gas... Inconel 718 joints at 2.45 GHz frequency [J]. Metallic Materials, 2016, 54: 27-35. [39] MANIKANDAN S G K, SIVAKUMAR D, PRASAD RAO K, KAMARAJ M. Effect of weld cooling rate on Laves phase formation......
) fuel cell: a study on potentials and possibilities[J]. Advanced Materials Research, 2015, 1109: 319-323. [80] SAROJINI K G K, MANOJ S V, SINGH P K, et al. Electrical conductivity of ceramic and metallic nanofluids[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2013, 417: 39-46. [81] MINEA A A, LUCIU R S. Investigations on electrical conductivity of stabilized water based Al2O3......
reinforced NiCrBSi alloy coating based on flexible metallic cloth technique[J]. Materials for Mechanical Engineering, 2018, 42(6): 59-64. [50] 王星星, 杜全斌, 彭 进, 等. AgCuZnSn钎料的热力学特性分析[J]. 中国有色金属学报, 2018..., QIU Xiao-ming, et al. Study on WC/Cu based bionic, non-smoothed, and composite coating[J]. Transactions of the Chinese Society for Agricultural Machinery, 2004, 35(6): 152-155. [13] 陈 莉. 激光仿生非光滑表面热作模具的......
学版), 2003, 34(2): 148-151. ZHAN Shu-hua, LAI Chao-bin, XIAO Ze-qiang. CFD analysis of gas stirring behavior in side-blown metallic bath[J]. Journal of Central South University (Science and Technology...-zhong, JIA Run-da. Hybrid model based on ICA-LSSVM for copper extraction[J]. Journal of Northeastern University(Nature Science), 2014, 35(10): 1369-1372. [31] RATKO G, DRAZEN S, PETR K. Adaptive soft......