The influence of the cube component on the mechanical behaviour of copper polycrystalline samples in tension

Continuous texture evolution during staged solid solution of Al‐Cu‐Mg and the influence on fatigue resistance

“…The higher the SF, the easier the slip. In aluminium alloy, TF is related to the work‐hardening rate 35–37 …”

“…As the graphs illustrated in Figure 12B,C, the near Cube possess high SF (0.42–0.46) and low Taylor factor (2.2–2.6), whereas Brass has the lowest SF (0.30–0.34) and highest Taylor factor (3.39–3.67). It is clear that the fatigue crack trends to extend along the texture grains with high SF, including the near Cube and near Cube 15 ° grain, due to the possible high resolved shear stress and low work hardening rate (i.e., low TF) 37 …”

“…In aluminium alloy, TF is related to the work-hardening rate. [35][36][37] As the IPF graph shown in Figure 12A, the fatigue crack extend along a zigzag path, which deviates from the direction of precrack (along the RD), especially when it across the orientations near Cube texture grains, such as {001}<0, −1, 0> and {001}<3, −1, 0> with the style of trans-granular extension.…”

“…It is clear that the fatigue crack trends to extend along the texture grains with high SF, including the near Cube and near Cube 15 grain, due to the possible high resolved shear stress and low work hardening rate (i.e., low TF). 37 As the dashed poly-lines indicated in Figure 12B, remarkable fatigue crack deflections occurred inside such F I G U R E 1 4 High-magnification scanning electron microscopy (SEM) observations of twin grains (A) and twin grain boundary (GB) (B) shown in Figure 15D, as well as the schematic diagram of intergranular fatigue crack extension (C) [Colour figure can be viewed at wileyonlinelibrary.com] above near Cube texture grain. The maximum deflection angle is even near to 90 .…”

Identification methodology of a rate-sensitive constitutive law with mean field and full field modeling approaches for polycrystalline materials

“…It is easy to prove that, if the sample is isotropic, we will getĖ M 22 =Ė M 11 = 0.5 at the level of the polycrystal and the resulting macroscopic stress state will also be purely uniaxial (like in the FC mode). Apart from being simpler and more rapid than the FC one, this version is thought to be especially well adapted to the simulation of a tensile test applied on anisotropic materials (as well as in isotropic ones of course) [40], and is consequently used in the present work.…”