Effect of strain rate on the compressive behaviour of a Zr56Al10.9Ni4.6Cu27.8Nb0.7 bulk metallic glass |
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| Authors: | Min Song Yaoqi Li Yuehui He |
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| Affiliation: | 1. State Key Laboratory of Powder Metallurgy , Central South University , Changsha 410083, China min.song.th05@alum.dartmouth.org;3. State Key Laboratory of Powder Metallurgy , Central South University , Changsha 410083, China |
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| Abstract: | We report the study of the effect of strain rate on the compressive behaviour of a Zr56Al10.9Ni4.6Cu27.8Nb0.7 bulk metallic glass. The results indicated that both the strength and plasticity of the glass increase with increasing the strain rate up to 10?5 s?1, above which the strength and plasticity start to decrease. The enhanced mechanical properties under a strain rate of 10?5 s?1 are due to the emission/propagation rate of the shear bands being consistent with the strain rate. |
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| Keywords: | amorphous alloys fracture plasticity shear bands strength |
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