共搜索到4942条信息,每页显示10条信息,共495页。用时:0小时0分0秒687毫秒
specimens. Although the strains induced by a bender element test cannot be measured directly, DYVIK et al [18] estimated the maximum shear strain induced by bender element to be less than 10-5 , which... condition for comparison. The damping ratio in RC tests can be measured based on two methods: the half-power bandwidth method or free-vibration decay [25]. Based on tests results, YOUN et al [26] and GU et......
Analytical results of Zn-alloyed sample (wt.%) Figure 13 shows the calculated vapor pressure of Zn and the other main components of the superalloy (Ni, Al, Co, Cr, Ti) as a function of temperature... solubilities of metals in molten Zn according to Zn-M (M=Ni, Co, Cr, Fe, Nb, Ti, Mo) at 700, 750, 800, 850, and 900 °C are summarized in Table 1. As illustrated in Table 1, there is a big difference......
]. Construction and Building Materials, 2009, 229: 116901. DOI: 10.1016/j.conbuildmat.2019.116901. [10] BAHARI A, SADEGHI-NIK A, ROODBARI M, MIRNIA N, Investigation the Al–Fe–Cr–Ti nano composites... formed. Further FT-IR analysis reveals the presence of calcite (CaCO3) due to atmospheric CO2 absorption, larnite (C2S) and calcium silicate (C3S), as stated before, and brownmillerite (Ca2(Al/Fe)2O3......
;0.943), which was similar to the result obtained by ZHANG et al [33]. And the adsorption data of S-MnO2 could be described well by the Freundlich model (R2>0.988) rather than Langmuir model (R2>...-jun, MA Teng, SU Chun-li, WANG Yan-xin. Arsenic immobilization by in-situ iron coating for managed aquifer rehabilitation [J]. Water Research, 2020, 181: 115859. DOI: 10.1016/j.watres.2020.115859.......
that of conventional Mg alloys. The corrosion behavior of an extruded Mg-Al-Pb-La alloy (AP65) has been studied as an anode for a seawater-activated battery [22] and Mg-air battery [23]. The AP65... exposure to the solution. The immersion test was conducted at ambient temperature using a device described by SONG et al [28], i.e., an inverted funnel and burette assembly was placed above......
control in high temperature process. Therefore, pyrite has attracted widespread attention in improving the surface properties of metal oxides. For instance, ZHENG et al [13] and LIU et al [14] proved that surface sulfurization of zinc oxide could be realized by pyrite at high temperature. ZHENG et al [15] researched the surface sulfurization performance of lead oxide by pyrite in baking process......
length. The surface shape of the bars has a partial influence on the interfacial frictional and mechanical bite force. ROLLAND et al [9] noted that sand-coated BFRP bars can enhance effectually the initial stiffness and bonding strength of the interface. However, GU et al [10] noted that rib depth has a significant influence on bond slip, and it is considered that glass fiber-reinforced polymer (GFRP......
bearing, the research results and methods pertaining to spherical plain bearings can be used for reference. XIANG et al [13] optimized the structure of GEZ101ES for a radial spherical plain bearing using a finite-element model. By keeping the assembly dimension unchanged, they obtained the optimal value of the ball diameter under static loading through a numerical experiment. LU et al [14] analyzed......
-yan, ZHANG Shi-yu, LIU Xin-peng, et al. Degradation behavior of MgF2/HA composite coating on magnesium alloy in vitro[J]. The Chinese Journal of Nonferrous Metals, 2018, 28(4):766-773. [3] 陶学伟, 王章忠, 章晓波...): 2101-2114. DOI: 10.11817/j.ysxb.1004.0609.2021-40033 YAO Huai, FANG Bo-yang, CAO Jia-long, et al. Effect of Gd content on microstructure and corrosion resistance of as-extruded Mg-0.5Zr-1.8Zn-xGd......
[22] 研究发现Mg-1.5Zn-0.15Gd合金深冷处理后其腐蚀电流密度较原始态增加了122%;JIN等[23]研究发现,深冷处理可以提高Fe基非晶涂层的耐腐蚀性能.所以进一步研究退火处理以及深冷循环处理对Zr基块体非晶合金耐腐蚀性能的影响很有必要. 本课题组开发了Zr-Cu-Ni-Al-Er非晶合金体系,优化出具有良好室温压缩塑性和高强度的...体原材料Zr(99.95%,质量分数),Cu(99.99%),Ni(99.95%),Al(99.99%),Er(99.99%)用线切割机切成小块,然后超声清洗干净,按照 (Zr0.6336Cu0.1452Ni0.1012Al0.12)97.4Er2.6(摩尔分数,%)配料,配料精度控制在±0.002 g.将配制好的原材料置于铜坩埚中利用电磁感应熔炼法在99.9%高纯Ar保护气氛下熔炼成母合金锭,母......