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金后续变形加工过程中极易产生基面织构,均匀成形能力较差,性能均匀性严重恶化.因此, 为了提高镁合金的均匀塑性变形能力,有必要通过对基面和非基面滑移阻力的调控,缩小基面与非基面滑移阻力之间的差距,促进非基面滑移开启,从而改善镁合金的塑性成形能力. 图1 不同温度下镁单晶的基面与非基面滑移的临界剪切应力[36] Fig. 1 CRSS for basal and non... of Alloys and Compounds, 2009, 468(1): 164-169. [16] WANG Lu-yuan, HUANG Jian, PENG Yong, WU Yi-xiong. Precipitates evolution in the heat affected zone of Mg-Gd-Y-Zr alloy in T6 condition during laser......
of Technology, 2019, 45 (1): 18-22. [31] YI X, TAN Z J, YU W J, LI J, LI B J, HUANG B Y, LIAO J Q. Three dimensional printing of carbon/carbon composites by selective laser sintering[J]. Carbon, 2016......
Administration of Work Safety and Administration. Analysis of National Non-coal Mine Accidents in 2007 [R]. 2008. [6] Franz Xaver Spachtholz. Non-explosive mining systems for hard rock mines[EB/OL]. http.../fraes-e.htm. 1996. [8] SINGH S P. Non-explosive applications of the PCF concept for underground excavation[J]. Tunneling and Underground Space Technology, 1998, 13: 305-311. [9] PICKERING R, YOUNG C......
solutions (Table 1) were analyzed using Zeta PlusTM zeta potential analyzer at 27 °C. The size distribution of Co3O4 particles in plating bath was determined using dynamic laser light scattering technique... in the nickel matrix, resulting in the acceleration of corrosion in NSC3 coating. 3.2.4.2 Electrochemical impedance spectra The corrosion behavior of composite coating was investigated by non-destructive......
analyzed. Fig. 8 Fluorescent microscopy photographs of fluorochrome labels and non-decalcified sections after being porous-titanium- implanted for 28, 56 and 84 d, respectively (A: Host bone; B: Porous.... 3.7 Histological examination of porous implants in different periods The bone integration of porous implants in different periods was evaluated by non-decalcified histologic section and Goldner’s......
, as shown in Fig. 9(a). It is noticeable that for non-inclined substrates there is a relatively large difference between the band gap energy of as-deposited film and that of annealed film, △Eg≈0.16... parameter (c) The band gap energy Eg has been described to be dependent on maximum strain ε by a linear function Eg(ε)=Eg0+αdε, where the Eg0 is the non-strained band gap energy and αd(=-4.21 eV) is the ITO......
) is a non-destructive technique that has been used to understand the interfacial behaviour in electrochemical systems [29,30], as well as to study the corrosion mechanisms to determine their kinetics...], or multiple processes with similar relaxation time constants or distributed non-ideal kinetics [30,32]. A possible explanation for the depressed semicircles relative to the electric circuit......
at the State Key Laboratory of Continental Dynamics, Northwest University, Xi’an. The spot size was used for the analysis with a beam diameter of 43 μm, the laser repetition rate was 5 Hz, and the energy.... Simultaneous determinations of U-Pb age, Hf isotopes and trace element compositions of zircon by excimer laser-ablation quadrupole and multiple-collector ICP-MS [J]. Chemical Geology, 2008, 247: 100-118......
moving baffle. However, spherical particle splicing is the primary method of creating a non-spherical model that is free to move. TAO et al [34] and MAIONE et al [17, 35] used spherical particle splicing to construct non-spherical particles for research. And the simulation results agree well with the experimental observations. The structure of the cross-shaped moving baffle used in the simulation......
, the above models fail to characterize non-linear rock deformation characteristics at the compaction stage of initial void. To overcome the deficiencies and limitations, CAO et al [16] presented a statistical... the full deformation process of intact rock under static stress, especially during the compaction stage of initial void. There is no non-linear propagation model of stress wave for porous rock subjected......
