High-pressure torsion induced microstructural evolution in a hexagonal close-packed Zr alloy

Authors

Y B. Wang, University of Sydney
M Louie, University of Sydney
Y Cao, Faculty of Engineering University of Wollongong
X Z. Liao, University of Sydney
Huijun Li, University of WollongongFollow
S P. Ringer, University of Sydney
Y T. Zhu, North Carolina State University

RIS ID

33558

Publication Details

Zhu, Y. T., Liao, X. Z., Cao, Y., Ringer, S., Louie, M., Wang, Y. B. & Li, H. (2010). High-pressure torsion induced microstructural evolution in a hexagonal close-packed Zr alloy. Scripta Materialia, 62 (4), 214-217.

Abstract

Transmission electron microscopy was used to investigate the microstructural evolution of a hexagonal close-packed Zr alloy subjected to high-pressure torsion at 3.8 GPa. Results show that an inhomogeneous grain size distribution was obtained at the early stages of deformation, which is unique to hexagonal structures. {} deformation twins, which have never been reported in Zr alloys, were observed in coarse grains but not in refined grains. The grain refinement mechanism is discussed based on the experimental observation.