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capability in pulsating heat pipes [C]// 8th AIAA/ASME Joint Thermophysics and Heat Transfer Conference. 2002. DOI: 10.2514/6.2002-2765. [52] NIKOLAYEV V S. Effect of tube heat conduction on the single branch......
子尺寸不一样,合金的晶格发生严重畸变,这种晶格畸变引起的弹性应力场可以阻碍位错运动.因此,晶格畸变效应可使 高熵合金具有高强度和高硬度等优异性能,尤其是BCC结构的高熵合金[71-73].图5所示为BCC晶体结构的晶格畸变示意图.图5(a)所示为单一元素(以Cr为例)的晶体结构,其晶格点阵有序且规则；图5(b)所示为Cr-V固溶体的晶体结构,溶质原子V通过置换占据了溶剂原子Cr的晶格结点,因而合金...滞扩散效应.但WMoTaNbV,WMoTaNb 系列高熵合金的密度高,约比镍基超合金高70%,限制了该类合金的应用.为降低其密度,获得高的比强度,SENKOV等[28, 83],YEH等[84],张勇等[29],惠希东等[85]基于IV 族元素和V 族元素制备了HfNbTaTiZr,HfMoTaTiZr,NbTiVTaAl,HfNbTiZr等系列合金,其密度约为9 g/cm3,接近于镍基超合金.该......
discharge plasma for 45 min at 1000 V, and the plasma-assisted CuO/ZnO/Al2O3 catalyst was studied for SRM reaction. According to the characterizations (XRD and EDX mapping) of the plasma-assisted samples... reactor is mainly comprised of two stainless steel compartments in the form of parallelepipeds, which was separated by a dense Pd-Ru alloy membrane. The thickness of the membrane was 60 μm. Moreover......
segmented chip and smooth surface finish is produced[37]. It is suitable to cut non-reflection mild steel. LAM disadvantages include it requires high energy, high cost and must be conducted in a specify......
and Steel Research, 2003, 15(7): 614-618. [8] MUKHERJEE A K, BIRD J E. DORN J E. Experimental correlations for high-temperature creep[J]. Trans ASM, 1969, 62: 62-68. [9] LUPINC V, MALDINI M, ZHOU L Z...硫,蠕变性能的变化主要是由于沿晶界择优硫化而造成的. 表6 IN738LC合金在850℃,307MPa蠕变过程中表面腐蚀深度 [6] Table 6 Measured and calculated corrosion depth in load bearing section for IN738LC alloy crept at and 307MPa ......
, 6 mm mill balls were housed inside a stainless 1200 mL steel chamber whose temperature was maintained at constant level, under the inert atmosphere (atmospheric pressure) of N2, and no other......
Zener drag effect as compared to RTR samples. The improvement in corrosion and pitting potentials was observed for CR samples (-1.321 V and -700 mV) as compared to RTR samples (-1.335 V and -710 mV... of the samples, potentiostatic test was performed before the cyclic polarization test with following conditions: initial φ of 0 V, initial time of 10 s, final φ value of 5 V, final time of 100 s, sample......
Zr57Nb5Al10Cu15.4- Ni12.6/70%W复合材料. 图3 DE技术公司制备的钨丝强化树脂基复合材料及与钢复合后的DTV[33] Fig. 3 Tungsten-wire-reinforced epoxy based composite(a) and DTV assembled by steel(b) prepared by DE technologies Inc... on fabrication of novel thermites film by electrophoretic deposition method[D]. Chongqing: Chongqing University, 2015. [65] DAVE V R, COLA M J, SWANSON R E, HARTMAN D. Structurally sound reactive material......
piping of PAT, which was arranged at four times outlet diameter. The hydrophone has a frequency range of 50–70×103 Hz, with a sound pressure sensitivity of –204 dB(re |V| μPa). Since the PAT is placed... with a steel head. As the incentive way, the single input single output method is adopted that is constantly moving the incentive points with a single response point fixed. The incentive points should......
Science and Technology Letter, 2016, 3(1): 30-35. [2] WEBSTER T M, REDDY R R, TAN J Y, NOSTRAND N J D V, ZHOU J Z, HAYES K F, RASKIN L. Anaerobic disposal of arsenic-bearing wastes results in low... coating of scorodite was proposed. Scorodite particles with polyhedral and raspberry-like morphologies were synthesized in an Fe(II)-As(V)-H2O system at 90 °C and pH 1.5 by blowing oxygen gas......
