Vol.4 No.6 (November 2014)
The Effect of Nanocrystals on the Plastic Deformation Ability of CuZr-Based BMG
The CuZr-based fully amorphous alloy and composites containing in-situ nanocrystals with large size were prepared. Without the influence of specimen geometry, their mechanical behaviors under compression were systematically studied and compared, confirming the important role of in- situ nanocrystals on the plastic deformation ability. At the same time, the coexistence of free volume and small nanocrystals can efficiently enhance the plastic deformation ability, providing a useful guideline for large plasticity in BMG composites with nanocrystalline prepared from fully amorphous alloy.
张临财 , 宋振亚 , 郭啸栋 , 侯彦华 (2014) 纳米晶对CuZr基非晶合金变形行为的影响。 材料科学， 4， 225-232. doi: 10.12677/MS.2014.46032
 Xu, D.H., Lohwongwatana, B., Duan, G., Johnson, W.L. and Garland, C. (2004) Bulk metallic glass formation in binary Cu-rich alloy series Cu100-xZrx (x=34, 36 38.2, 40 at.%) and mechanical properties of bulk Cu64Zr36 glass. Acta Materialia, 52, 2621-2624.
 Xu, D.H., Duan, G. and Johnson, W.L. (2004) Unusual glass-forming ability of bulk amorphous alloys based on ordinary metal copper. Physical Review Letters, 92, Article ID: 245504.
 Wei, R., Yang, S., Chang, Y., Li, Y.F., Zhang, C.J., et al. (2014) Mechanical property degradation of a CuZr-based bulk metallic glass composite induced by sub-Tg annealing. Materials & Design, 56, 128-138.
 Pan, Y., Zeng, Y., Jing, L., Zhang, L. and Pi, J. (2014) Composition design and mechanical properties of ternary Cu-Zr-Ti bulk metallic glasses. Materials & Design, 55, 773-777.
 Inoue, A., Zhang, W., Tsurui, T., Yavari, A.R. and Greer, A.L. (2005) Unusual room-temperature compressive plasticity in nanocrystal-toughened bulk copper-zirconium glass. Philosophical Magazine Letters, 85, 221-229.
 Das, J., Tang, M.B., Kim, K.B., Theissmann, R., Baier, F., et al. (2005) “Work-hardenable” ductile bulk metallic glass. Physical Review Letters, 94, Article ID: 205501.
 Kim, K.B., Das, J., Baier, F., Tang, M.B., Wang, W.H., et al. (2006) Heterogeneity of a Cu47.5Zr47.5Al5 bulk metallic glass. Applied Physics Letters, 88, Article ID: 051911.
 Qiang, J.B., Zhang, W., Xie, G.Q. and Inoue, A. (2007) Unusual room temperature ductility of a Zr-based bulk metallic glass containing nanoparticles. Applied Physics Letters, 90, Article ID: 231907.
 Lee, S.W., Huh, M.Y., Fleury, E. and Lee, J.C. (2006) Crystallization-induced plasticity of Cu-Zr containing bulk amorphous alloys. Acta Materialia, 54, 349-355.
 Kumar, G., Ohkubo, T., Mukai, T. and Hono, K. (2007) Plasticity and microstructure of Zr-Cu-Al bulk metallic glasses. Scripta Materialia, 57, 173-176.
 Huang, Y.J., Shen, J. and Sun, J.F. (2007) Bulk metallic glasses: Smaller is softer. Applied Physics Letters, 90, Article ID: 081919.
 Jiang, J.Z., Kato, H., Ohsuna, T., Saida, J., Inoue, A., et al. (2003) Origin of nondetectable x-ray diffraction peaks in nanocomposite CuTiZr alloys. Applied Physics Letters, 83, 3299-3301.
 Slipenyuk, A. and Eckert, J. (2004) Correlation between enthalpy change and free volume reduction during structural relaxation of Zr55Cu30Al10Ni5 metallic glass. Scripta Materialia, 50, 39-44.
 Homer, E.R. (2014) Examining the initial stages of shear localization in amorphous metals. Acta Materialia, 63, 44-53.
 Zhang, L.C., Jiang, F., Zhang, D.H., He, L., Sun, J., et al. (2008) In-situ precipitated nanocrystal beneficial to enhanced plasticity of Cu-Zr based bulk metallic glasses. Advanced Engineering Materials, 10, 943-950.
 Bei, H., Xie, S. and George, E.P. (2006) Softening caused by profuse shear banding in a bulk metallic glass. Physical Review Letters, 96, Article ID: 105503.
 Revesz, A., Hobor, S., Szabo, P.J., Zhilyaev, A.P. and Kovacs, Z. (2007) Deformation induced crystallization in an amorphous Cu60Zr2OTi2O alloy by high pressure torsion. Materials Science and Engineering A, 460, 459-463.
 Chen, M., Inoue, A., Zhang, W. and Sakurai, T. (2006) Extraordinary plasticity of ductile bulk metallic glasses. Physical Review Letters, 96, Article ID: 245502.