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and hybrid method [3]. Data-driven approach can be interpreted as black box that studies the behavior of the system directly from the collected data (such as a vibration, noise, emission, force, pressure, etc... of anomaly in the HI [40] are considered as signs to change the state of degradation. In Ref. [38], a matter-element model based on the correlation coefficient between the current state......
is the compressive strain; s is the cross-sectional area of the specimen; h is the height of the specimen; F is the pressure; △h is the displacement under the pressure; and WE is the work done by the pressure... and σθ/σc, the rock brittleness σc/σt, the elastic energy index WET and the rock mass integrity coefficient Kv. σ1 is the maximum principal stress at the tunnel periphery, and σθ is the maximum tangential......
during the precision machining of abrasive flow. Under different inlet velocity, volume fraction and abrasive particle size, the dynamic pressure and turbulence flow energy of abrasive flow in elbow... have developed a variety of abrasive flow polishing techniques for different processing objects and process conditions. CHERIAN et al [7, 8] studied the effects of the extrusion pressure, abrasive......
[10], machinability [11], wear resistance [12], electrical properties [9,13] and corrosion resistance [14]. Other elements can also be added to Zn-Mg alloys with a view to the improved mechanical..., which will be reflected in the alloy/mold heat transfer coefficient (h). A decrease in h will be accompanied by a corresponding decrease in the cooling rate profile [26]. However, the determination......
: severe plastic deformation; cyclic extrusion compression; corrosion behavior; mechanical properties; hydrostatic pressure 1 Introduction Magnesium alloys are normally combinations of magnesium with other... in alloys [4,5]. It has been shown in most studies that performing severe plastic deformation processes such as equal channel angular pressing (ECAP) [6], cyclic extrusion compression (CEC) [7], high-pressure......
, evolution, and dissipation characteristics of sandstone specimens under uniaxial cyclic compressive loading and unloading. CHEN et al [6] investigated the influence of confining pressure and water content on the energy damage mechanism of deeply buried carbonaceous slate, and found that the dissipated energy gradually increased at the pre-peak and post-peak stages with increasing confining pressure......
) Table 2 Bulk chemical composition of ores from the Sanhexu and Paojinshan deposit(μg/g) 表3 泡金山及三合圩矿床In与其他元素相关系数表 Table 3 Correlation coefficient between indium with other elements of the Sanhexu......
Metall Sinica, 2017, 53(8): 918-926. [28] HANEMANN T, CARTER L N, HABSCHIED M, et al. In-situ alloying of AlSi10Mg+Si using selective laser melting to control the coefficient of thermal expansion[J... by selective laser melting technique[J]. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2019, 41(6). [30] ZHU Yi, ZOU Jun, YANG Hua-yong. Wear performance of metal parts fabricated......
of Mg-Li alloys is the major cause of limiting practical application, and it is not very obvious to improve the anti-corrosion property by increasing alloy purity and alloying with alloy elements... was formed by electroplating the Cu-coated LA91 alloy in an acidic Cu- and Cr-plating baths. The hardness, wear resistance, and corrosion resistance of LA91 alloy with Cr/Cu coating were expressly......
at atmospheric and elevated temperature, stability at elevated temperature, microstructural uniformity, wear resistance, fracture toughness, machinability, tool reactivity, and adequate density [9,26]. Workpiece... to strong rubbing action between Al and Cu alloys. The inadequate elevated temperature stability and wear resistance of the tool steel at higher rotational speed are the main reasons of the tool degradation......
