Deformation Micromechanisms of a Ti-Based Metallic Glass Composite with Excellent Mechanical Properties

Abstract:

A Ti-based metallic glass composite with composition of Ti48Zr20Nb12Cu5Be15 exhibits good ambient plasticity in tensile and compressive loading. The macro and micro mechanisms during deformation have been investigated systematically. Obvious asymmetry between the tensile and compressive properties of the composite has been observed, indicating amorphous matrix effect on the metallic glass composite. The micro fracture mechanism of dendrites in compression can also be attributed to two mechanisms: shear induced fracture in major and tension induced fracture in local, revealing a constraint of matrix induced complex stress state in composite. Pile-ups of dislocations in dendrites cause work-hardening of composite, and the impedance of dendrites to shear bands is responsible for the improvement of plastic strain.

• Periodical: Materials Science Forum (Volumes 745-746)
• Pages: 809-814
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.745-746.809
• Online since: February 2013
• Authors: Jie Bai, Jin Shan Li, Hong Chao Kou, Peng Wang, Jun Wang, Bin Tang, Hong Zhong
• Keywords: Composite, Mechanical Property, Metallic Glass, Micromechanism

References

[1] A. Inoue, Stabilization of metallic supercooled liquid and bulk amorphous alloys, Acta. Mater. 48 (2000) 279-306.

DOI: 10.1016/s1359-6454(99)00300-6

[2] J.F. Loffler, Bulk metallic glasses, Intermetallics. 11 (2003) 529-540.

[3] M.F. Ashby, A.L. Greer, Metallic glasses as structural materials, Scri. Mater. 54 (2006) 321-326.

[4] M.K. Miller, P.K. Liaw, Bulk metallic glasses, Springer, New York, (2007).

[5] A. Peker, W. Johnson, A highly processable metallic glass: Zr41. 2Ti13. 8Cu12. 5Ni10. 0Be22. 5, Appl. Phys. Lett. 63 (1993) 2342-2344.

[6] F. Szuecs, C.P. Kim, W.L. Johnson, Mechanical properties of Zr56. 2Ti13. 8Nb5. 0Cu6. 9Ni5. 6Be12. 5 ductile phase reinforced bulk metallic glass composite, Acta. Mater. 49 (2001) 1507-1513.

DOI: 10.1016/s1359-6454(01)00068-4

[7] J.L. Cheng, G. Chen, F. Xu, Y.L. Du, Y.S. Li, C.T. Liu, Correlation of the microstructure and mechanical properties of Zr-based in-situ bulk metallic glass matrix composites, Intermetallics. 18 (2010) 2425-2430.

DOI: 10.1016/j.intermet.2010.08.040

[8] J.W. Qiao, J.T. Zhang, F. Jiang, Y. Zhang, P.K. Liaw, Y. Ren, etal., Development of plastic Ti-based bulk-metallic-glass-matrix composites by controlling the microstructures, Mater. Sci. Eng. A. 527 (2010) 7752-7756.

DOI: 10.1016/j.msea.2010.08.055

[9] H. Ma, J. Xu, E. Ma, Mg-based bulk metallic glass composites with plasticity and high strength, Appl. Phys. Lett. 83 (2003) 2793-2795.

DOI: 10.1063/1.1616192

[10] M.L. Lee, Y. Li, C.A. Schuh, Effect of a controlled volume fraction of dendritic phases on tensile and compressive ductility in La-based metallic glass matrix composites, Acta. Mater. 52 (2004) 4121-4131.

DOI: 10.1016/j.actamat.2004.05.025

[11] J.W. Qiao, Y. Zhang, H.L. Jia, H.J. Yang, P.K. Liaw, B.S. Xu, Tensile softening of metallic- glass-matrix composites in the supercooled liquid region, Appl. Phys. Lett. 100 (2012) 121902.

DOI: 10.1063/1.3696026

[12] D.C. Hofmann, J.Y. Suh, A. Wiest, G. Duan, M.L. Lind, M.D. Demetriou, etal., Designing metallic glass matrix composites with high toughness and tensile ductility, Nature. 451 (2008) 1085-1089.

DOI: 10.1038/nature06598

[13] X.S. Xiao, S.S. Fang, L. Xia, W.H. Li, H. Qin, Y.D. Dong, et al., Influence of beryllium on thermal stability and glass-forming ability of Zr–Al–Ni–Cu bulk amorphous alloys, J. Alloys. Compd, 351 (2003) 324-328.

DOI: 10.1016/j.jallcom.2004.01.014

[14] A. Peker, W.L. Johnson, A highly processable metallic glass: ZrTiCuNiBe, Appl. Phys. Lett. 63 (1993) 2342.

[15] Y. Zhang, W. Xu, H. Tan, Y. Li, Microstructure control and ductility improvement of La-Al-(Cu, Ni) composites by Bridgman solidification, Acta. Mater. 53 (2005) 2607-2616.

DOI: 10.1016/j.actamat.2005.02.020

[16] Z.F. Zhang, J. Eckert, L. Schultz, Difference in compressive and tensile fracture mechanisms of Zr59Cu20Al10Ni8Ti3 bulk metallic glass, Acta. Mater. 51 (2003) 1167-1179.

DOI: 10.1016/s1359-6454(02)00521-9

[17] J.W. Qiao, A.C. Sun, E.W. Huang, Y. Zhang, P.K. Liaw, C.P. Chuang, Tensile deformation micromechanisms for bulk metallic glass matrix composites: From work-hardening to softening, Acta. Mater. 59 (2011) 4126-4137.

DOI: 10.1016/j.actamat.2011.03.036

[18] V.V. Bulatov, O. Richmond, M.V. Glazov, An atomistic dislocation mechanism of pressure-dependent plastic flow in aluminum, Acta. Mater. 47 (1999) 3507-3514.

DOI: 10.1016/s1359-6454(99)00154-8

[19] F.F. Wu, Z.F. Zhang, S. Mao, A. Peker, J. Eckert, Effect of annealing on the mechanical properties and fracture mechanisms of a Zr56. 2Ti13. 8Nb5. 0Cu6. 9Ni5. 6Be12. 5 bulk-metallic-glass composite, Physical. Review. B. 75 (2007) 134201.

[20] Z.P. Lu, H. Bei, Y. Wu, G.L. Chen, E.P. George, C.T. Liu, Oxygen effects on plastic deformation of a Zr-based bulk metallic glass, Appl. Phys. Lett. 92 (2008) 011915.

DOI: 10.1063/1.2828981

[21] J.W. Qiao, Y. Zhang, P.K. Liaw, Tailoring Microstructures and Mechanical Properties of Zr-Based Bulk Metallic Glass Matrix Composites by the Bridgman Solidification, Adv. Eng. Mater. 10 (2008) 1039-1042.

DOI: 10.1002/adem.200800149

[22] J.W. Qiao, Y. Zhang, P.K. Liaw, G.L. Chen, Micromechanisms of plastic deformation of a dendrite/Zr-based bulk-metallic-glass composite, Scri. Mater. 61 (2009) 1087-1090.

DOI: 10.1016/j.scriptamat.2009.08.044

[23] K.B. Kim, J. Das, F. Baier, J. Eckert, Propagation of shear bands in Ti66. 1Cu8Ni4. 8Sn7. 2Nb13. 9 nanostructure-dendrite composite during deformation, Appl. Phys. Lett. 86 (2005) 171909.

DOI: 10.1063/1.1920424