Higher fraction of basal slip
WebWith further straining, basal slip attains a non-negligible relative activity of 25%, higher than pyramidal slip. Neither twinning mode was activated. Correlating this result with texture evolution, we find that basal slip is responsible for concentrating the basal poles 30–50° from the ND direction in the ND-TD plane. Web25 de out. de 2012 · The higher hardness of the cross-rolled samples is attributed to orientation hardening due to the near basal texture. Viscoplastic self-consistent simulations are able to successfully predict the texture evolution of the differently rolled samples.
Higher fraction of basal slip
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WebThe enhanced stretch formability is mainly attributed to a reduction of the basal texture intensity and a development of the transverse direction (TD)-split texture: a split of the basal planes toward the TD about 35ﾂｰ from the normal direction (ND).5,6,8,10ﾂｭ12)Previous studies have shown the principal effects of special element addition to … Web7 de abr. de 2024 · In contrast, the cells on the FG Ti surface moved parallel to the fibrous grains. Although the average migration velocity of the cells was slightly slower on FG Ti (6.54 µm/10 h) than on CG Ti (8.23 µm/10 h), the average fraction of cell moving time was 50% higher on FG Ti (28.9%) than that on CG Ti (19.4%) (Figure S9E, Supporting …
Web11 de fev. de 2011 · There is an increase in the volume fraction of the Ecomponent while that of the Bcomponent fluctuates with increasing strain. On the other hand, the volume fractions of the Mand Dcomponents tend to saturate beyond a strain of ε = 0.1. Web12 de ago. de 2024 · The UFG specimens exhibited high strength ... 10–11> twinning was dramatically suppressed, while non-basal slip systems ... Further deformation to a strain of 0.08, the area fraction ...
Web20 de nov. de 2024 · The basal friction coefficient is not a constant and a function of nondimensional slip A modified Navier slip law could be defined on a given roughness … Web3 de abr. de 2024 · Experiments are conducted with a ring-shear device designed to study glacier slip over hard or soft beds.This device rotates a horizontal ring of ice (0.9 m in outside diameter, 0.2 m wide, and ~0.2 m thick) at a steady velocity and under a prescribed effective stress of the order expected in natural glaciers across a till bed, while the …
Web12 de out. de 2024 · The present work mainly investigated the effect of extrusion temperatures on the microstructure and mechanical properties of Mg-1.3Zn-0.5Ca (wt.%) alloys. The alloys were subjected to extrusion at 300 °C, 350 °C, and 400 °C with an extrusion ratio of 9.37. The results demonstrated that both the average size and volume …
WebFor basal slip we obtain a much higher Peierls barrier (5–10 times), trapping coefficient (two orders of magnitude) and activation barrier (one order of magnitude) than those for … chip carving quarterlyWeb25 de set. de 2024 · When basal friction is present, we observe a smooth crossover between the two regimes as a function of packing fraction, and we find that reducing the … chip carving stab knifeWebAs slip is most prone to occur on basal planes in Mg at low temper- atures, the rotation of high fraction of basal planes to the directions unfavorable for slip, for example, will increase the yield stress appreciably. chip carving setWebFig. 1 Slip traces of non-basal slip observed in (a) the Mg 89Zn 4Y 7 high-volume-fraction LPSO phase extruded alloy specimen deformed at RT to ³2% plastic strain, and (b) the … grant hilbert ankeny iowaWebHere, the black bars shows the number fraction of all grains analyzed by EBSD before the tensile tests; the highest Schmid factor for BS in each grain was used for the sorting. … chip carvingsWeb20 de mai. de 2016 · The competition between basal and prismatic slip in hcp metals is not controlled by the c/a ratio*, but by the energies of the basal and prismatic stacking faults … grant hilbert iowaWeb25 de out. de 2024 · In this paper, the hot workability of Mg-1Li-1Al (LA11) alloy is assessed through a uniaxial compression test in a temperature range from 200 to 400 °C and a strain rate, έ, of 1–0.01 s −1. The present study reveals that flow stress increases when the strain rate increases and deformation temperature decreases. grant hildreth