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ABSTRACT
The present study examined the effects of pressure (range: 1–6 GPa) on microstructure and mechanical properties of pure Zr. Pressure significantly affected refining of Zr microstructure. When 5 GPa pressure was applied, ω-phase was observed in processed specimen, and volume fraction sharply increased to 57.4% for specimen pressurized-quenched at 6 GPa. Benefitting from refinement of acicular-shaped α (α′) plates and the formation of equiaxial ω-phase, the yield strength of the sample quenched from 6 GPa reached ∼616 MPa, which is almost twice as that of coarse-grained Zr.
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
The authors gratefully acknowledge financial support from The National Natural Science Foundation of China [Grant Nos. 51531005 and 51421091].