Strengthening in high-pressure quenched Zr |
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| Authors: | Yang Zhang Yuduo Ren Peng Wang Zhisheng Zhao Zhongyuan Liu Julong He |
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| Institution: | 1. State Key Laboratory of Metastable Materials Science &2. Technology, Yanshan University, Qinhuangdao, People’s Republic of China |
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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. |
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| Keywords: | Zirconium high pressure quench widmanstätten plates omega phase |
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