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-Nb-Fe新锆合金；第二相；Zr(Nb, Fe)2；(Zr, Nb)2Fe 中图分类号:TG146.4 文献标志码:A Review of second phase particles on zirconium alloys (Ⅱ): Zr-Sn-Nb-Fe alloys... of the second phase particles (SPPs) in Zr-Sn-Nb-Fe new zirconium alloys at home and abroad were reviewed, paying close attention to the composition, crystallographic structure and formation mechanism......
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density and tensile strength can reach to 97.4% and 401 MPa, respectively. The microscale TiC in the form of second phase particles disperses on the W transgranular and grain boundary uniformly. Comparing with pure W, the addition of microscale TiC can inhibit the grain growth, which plays the role of fine-grain strengthening and dispersed strengthening. Key words: W-TiC alloy; second phase particle......
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milled by PBM for 4 h exhibit irregular polyhedron, with the size distribution between 5 μm and 40 μm. These particles present disordered fct structure with no phase transformation behaviour. When annealed... μm to 30 μm. The particles present disordered fcc structure with no phase transformation behaviour. However the crystal structure of these particles doesn’t transform from disordered fcc to Heusler......
of precipitation, which has a square shape and the size is about 500 nm. The size of plate shape precipitation is reduced. Key words: vanadium alloy; microstructure; second phase ... and the shrinking ratio is 2.8% compared with the pure vanadium. The main precipitation in the bulk grains is the complex Ti rich Ti-CNO phase, which has a plate shape with the width of about 100 nm......
；腐蚀Effect of second phase particles on localized corrosion of Mg-Gd-Y-Nd-Zr alloyLIU Jun, CHEN Ming-an, MA Cong-cong, HUANG Yu-di, ZHANG Xin-ming, DENG Yun-lai(School of Materials Science... was investigated by optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS) and saline immersion test. The action mechanism of various second phase particles......
and other physical equations using formula translation. They applied 35 sets of particles as the secondary phase. The 35 sets of scalar equations share a common velocity field, but have their own... model The settling of whole-tailings in deep-cone thickener is a typical solid-liquid two-phase flow with continuous liquid and discrete solid (whole-tailings particles). Due to a large range......
Effect of second introduced phase on magnetotransport properties of La2/3Sr1/3MnO3/0.33(CuO, ZnO, Al2O3) composites ZHOU Zheng-you(周正有)1, WU Xiao-shan(吴小山)1, 2, LUO Guang-sheng(罗广圣)1, JIANG Feng... to explore the role of second introduced phase. The microstructural analysis shows two kinds of grain boundaries: LSMO/LSMO and LSMO/second phase/LSMO. Two maximal resistivities appear in LSMO/0.33CuO......
. Consequently, the measured microhardness value in the weld is higher because the β-Mg17(Al, Zn)12 phases work as the second phase strengthening particles. 4 Conclusions 1) AZ31B magnesium alloy sheets... higher than that in the base metal due to the second phase strengthening of β-Mg17(Al, Zn)12 formed in the weld. Key words: Mg alloy; gas metal arc welding; porosity; microstructure; second phase......
