Effect of Heterophase Interfaces on Microstructure and Crystallographic Texture Evolution during Rolling of Directionally Solidified Ag-Cu Eutectic Alloy
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In: Metallurgical and materials transactions. A, Physical metallurgy and materials science , Vol. 51.2020, No. 1, 31.10.2019, p. 368-379.
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TY - JOUR
T1 - Effect of Heterophase Interfaces on Microstructure and Crystallographic Texture Evolution during Rolling of Directionally Solidified Ag-Cu Eutectic Alloy
AU - LI, Jiehua
AU - Li, Jun
AU - Renk, Oliver
AU - Pippan, Reinhard
AU - Ghosh, Pradipta
PY - 2019/10/31
Y1 - 2019/10/31
N2 - A directionally solidified Ag-Cu eutectic alloy was deformed by rolling to understand the role of heterophase interfaces on the deformation behavior of ultrafine and nanocrystalline face-centred cubic metals. During rolling, the initial 〈220〉 fibre texture was gradually shifted to a Brass type texture for both Ag and Cu phases. More interestingly, a similar path of texture evolution was observed for both the phases at all strain levels. The in-depth transmission electron microscopy analysis revealed that the Ag lamellae deformed primarily by twinning, while the Cu lamellae deformed by twinning and dislocation slip. Furthermore, the special cube-on-cube and twin heterophase interfaces facilitated co-deformation and co-rotation of the adjacent Ag and Cu lamella due to a strong latent hardening effect, which stimulated a similar texture evolution for both phases.
AB - A directionally solidified Ag-Cu eutectic alloy was deformed by rolling to understand the role of heterophase interfaces on the deformation behavior of ultrafine and nanocrystalline face-centred cubic metals. During rolling, the initial 〈220〉 fibre texture was gradually shifted to a Brass type texture for both Ag and Cu phases. More interestingly, a similar path of texture evolution was observed for both the phases at all strain levels. The in-depth transmission electron microscopy analysis revealed that the Ag lamellae deformed primarily by twinning, while the Cu lamellae deformed by twinning and dislocation slip. Furthermore, the special cube-on-cube and twin heterophase interfaces facilitated co-deformation and co-rotation of the adjacent Ag and Cu lamella due to a strong latent hardening effect, which stimulated a similar texture evolution for both phases.
UR - https://doi.org/10.1007/s11661-019-05515-3
U2 - 10.1007/s11661-019-05515-3
DO - 10.1007/s11661-019-05515-3
M3 - Article
VL - 51.2020
SP - 368
EP - 379
JO - Metallurgical and materials transactions. A, Physical metallurgy and materials science
JF - Metallurgical and materials transactions. A, Physical metallurgy and materials science
SN - 1073-5623
IS - 1
ER -
