logo

SCIENCE CHINA Materials, Volume 63 , Issue 12 : 2620-2626(2020) https://doi.org/10.1007/s40843-020-1454-x

Deformation map of metallic glass: Normal stress effect

More info
  • ReceivedApr 29, 2020
  • AcceptedJul 3, 2020
  • PublishedSep 24, 2020

Abstract


Funding

the National Natural Science Foundation of China(51771205)

and Liaoning Revitalization Talents Program(XLYC1808027)


Acknowledgment

This work was supported by the National Natural Science Foundation of China (51771205), and Liaoning Revitalization Talents Program (XLYC1808027).


Interest statement

The authors declare that they have no conflict of interest.


Contributions statement

Zhang Z and Qu R conceived and supervised the study; Wu S performed the experiments and wrote the manuscript with the supports from Qu R, Zhang Z, Zhang H and Zhu Z. All authors contributed to the general discussion.


Author information

Shaojie Wu obtained his BSc degree from Xi’an Jiaotong University in 2015. He is currently a PhD student under the supervision of Prof. Zhefeng Zhang and Prof. Ruitao Qu at the Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS). His research focuses on the deformation and fracture mechanisms of high-strength materials.


Ruitao Qu is a professor at the School of Materials Science and Engineering, Northwestern Polytechnical University. He received his BSc degree from Xi’an Jiaotong University in 2006, and PhD degree from the IMR, CAS in 2012. He joined the IMR as an assistant professor in 2012 and became an associate professor in 2015. From 2017 to 2019, he worked with Prof. Cynthia A. Volkert at the University of Gottingen as a Humboldt Postdoctoral Researcher. He assumed his present position in 2020. He works in the field of mechanical behaviors of advanced metallic materials with a special focus on their damage mechanics, strength theory and fracture mechanism.


Zhefeng Zhang is a professor at the IMR, CAS. He received his BSc and MSc degrees from Xi’an Jiaotong University in 1992 and 1995, respectively. After receiving his PhD degree in 1998 from the IMR, CAS, he joined the IMR as a research associate. From 2000 to 2001, he worked at the National Institute of Advanced Industrial Science and Technology, Japan as a JSPS (Japan Society for the Promotion of Science) fellow. From 2001 to 2003, he was awarded by Alexander von Humboldt foundation working with Prof. L. Schultz and Prof. J. Eckert at the Institute for Metallic Materials, IFW-Dresden, Germany. He assumed his present position in 2004. His research focuses on the mechanical properties, specifically associated with the fatigue and fracture behavior of materials. He has published more than 480 papers in international journals which have been cited more than 13,000 times.


References

[1] Schuh C, Hufnagel T, Ramamurty U. Mechanical behavior of amorphous alloys. Acta Mater, 2007, 554067-4109 CrossRef Google Scholar

[2] Greer AL, Cheng YQ, Ma E. Shear bands in metallic glasses. Mater Sci Eng R, 2013, 7471-132 CrossRef Google Scholar

[3] Liu X, Li F, Yang Y. “Softness” as the structural origin of plasticity in disordered solids: A quantitative insight from machine learning. Sci China Mater, 2019, 62154-160 CrossRef Google Scholar

[4] Lu J, Ravichandran G, Johnson WL. Deformation behavior of the Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass over a wide range of strain-rates and temperatures. Acta Mater, 2003, 513429-3443 CrossRef Google Scholar

[5] Schuh CA, Nieh TG. A nanoindentation study of serrated flow in bulk metallic glasses. Acta Mater, 2003, 5187-99 CrossRef Google Scholar

[6] Hufnagel TC, Schuh CA, Falk ML. Deformation of metallic glasses: Recent developments in theory, simulations, and experiments. Acta Mater, 2016, 109375-393 CrossRef Google Scholar

[7] Spaepen F. A microscopic mechanism for steady state inhomogeneous flow in metallic glasses. Acta Metall, 1977, 25407-415 CrossRef Google Scholar

[8] Megusar J, Argon AS, Grant NJ. Plastic flow and fracture in Pd80Si20 near Tg. Mater Sci Eng, 1979, 3863-72 CrossRef Google Scholar

[9] Kawamura Y, Nakamura T, Kato H, et al. Newtonian and non-Newtonian viscosity of supercooled liquid in metallic glasses. Mater Sci Eng-A, 2001, 304-306674-678 CrossRef Google Scholar

[10] Nieh T, Wadsworth J, Liu CT, et al. Plasticity and structural instability in a bulk metallic glass deformed in the supercooled liquid region. Acta Mater, 2001, 492887-2896 CrossRef Google Scholar

[11] Schuh CA, Lund AC, Nieh TG. New regime of homogeneous flow in the deformation map of metallic glasses: Elevated temperature nanoindentation experiments and mechanistic modeling. Acta Mater, 2004, 525879-5891 CrossRef Google Scholar

[12] Wang G, Shen J, Sun JF, et al. Tensile fracture characteristics and deformation behavior of a Zr-based bulk metallic glass at high temperatures. Intermetallics, 2005, 13642-648 CrossRef Google Scholar

[13] Nieh T, Wadsworth J. Homogeneous deformation of bulk metallic glasses. Scripta Mater, 2006, 54387-392 CrossRef Google Scholar

[14] Song SX, Jang JSC, Huang JC, et al. Inhomogeneous to homogeneous transition in an Au-based metallic glass and its deformation maps. Intermetallics, 2010, 18702-709 CrossRef Google Scholar

[15] Sun Y, Concustell A, Greer AL. Thermomechanical processing of metallic glasses: Extending the range of the glassy state. Nat Rev Mater, 2016, 116039 CrossRef ADS Google Scholar

[16] Eswar Prasad K, Raghavan R, Ramamurty U. Temperature dependence of pressure sensitivity in a metallic glass. Scripta Mater, 2007, 57121-124 CrossRef Google Scholar

[17] Keryvin V, Eswar Prasad K, Gueguen Y, et al. Temperature dependence of mechanical properties and pressure sensitivity in metallic glasses below glass transition. Philos Mag, 2008, 881773-1790 CrossRef ADS Google Scholar

[18] Lei X, Wei Y, Wei B, et al. Spiral fracture in metallic glasses and its correlation with failure criterion. Acta Mater, 2015, 99206-212 CrossRef Google Scholar

[19] Flores KM, Dauskardt RH. Mean stress effects on flow localization and failure in a bulk metallic glass. Acta Mater, 2001, 492527-2537 CrossRef Google Scholar

[20] Zhang ZF, Eckert J, Schultz L. Difference in compressive and tensile fracture mechanisms of Zr59Cu20Al10Ni8Ti3 bulk metallic glass. Acta Mater, 2003, 511167-1179 CrossRef Google Scholar

[21] Zhang ZF, He G, Eckert J, et al. Fracture mechanisms in bulk metallic glassy materials. Phys Rev Lett, 2003, 91045505 CrossRef ADS Google Scholar

[22] Qu RT, Eckert J, Zhang ZF. Tensile fracture criterion of metallic glass. J Appl Phys, 2011, 109083544 CrossRef ADS Google Scholar

[23] Qu RT, Zhang ZF. A universal fracture criterion for high-strength materials. Sci Rep, 2013, 31117 CrossRef ADS Google Scholar

[24] Prasad KE, Keryvin V, Ramamurty U. Pressure sensitive flow and constraint factor in amorphous materials below glass transition. J Mater Res, 2009, 24890-897 CrossRef Google Scholar

[25] Tang MQ, Zhang HF, Zhu ZW, et al. TiZr-base bulk metallic glass with over 50 mm in diameter. J Mater Sci Tech, 2010, 26481-486 CrossRef Google Scholar

[26] Wu SJ, Qu RT, Wang XD, et al. Fracture and strength of a TiZr-based metallic glass at low temperatures. Mater Sci Eng-A, 2019, 768138453 CrossRef Google Scholar

[27] Wu SJ, Wang XD, Qu RT, et al. Gradual shear band cracking and apparent softening of metallic glass under low temperature compression. Intermetallics, 2017, 8745-54 CrossRef Google Scholar

[28] Steif PS, Spaepen F, Hutchinson JW. Strain localization in amorphous metals. Acta Metall, 1982, 30447-455 CrossRef Google Scholar

[29] Wang L, Bei H, Gao YF, et al. Effect of residual stresses on the hardness of bulk metallic glasses. Acta Mater, 2011, 592858-2864 CrossRef Google Scholar

[30] Wu TW, Spaepen F. The relation between enbrittlement and structural relaxation of an amorphous metal. Philos Mag B, 1990, 61739-750 CrossRef ADS Google Scholar

[31] de Hey P, Sietsma J, van den Beukel A. Structural disordering in amorphous Pd40Ni40P20 induced by high temperature deformation. Acta Mater, 1998, 465873-5882 CrossRef Google Scholar

[32] Johnson WL, Lu J, Demetriou MD. Deformation and flow in bulk metallic glasses and deeply undercooled glass forming liquids—A self consistent dynamic free volume model. Intermetallics, 2002, 101039-1046 CrossRef Google Scholar

[33] Wang G, Huang YJ, Makhanlall D, et al. Resistance spot welding of Ti40Zr25Ni3Cu12Be20 bulk metallic glass: Experiments and finite element modeling. Rare Met, 2017, 36123-128 CrossRef Google Scholar

  • Figure 1

    Mechanical responses and fracture features of Ti32.8Zr30.2Ni5.3Cu9Be22.7 MG tested at different temperatures. (a, b) Typical stress-strain curves under (a) compression and (b) tension at strain rate of 10−4 s−1. The deformation modes of the samples displayed by the blue, red and black curves are shear localization, non-Newtonian flow and Newtonian flow, respectively. (c, d) Representative deformation or fracture features under (c) compression and (d) tension.

  • Figure 2

    Variations of yield strength with temperature at different strain rates under compression and tension. The green circle shadow and dash lines indicate the onset of homogeneous deformation.

  • Figure 3

    Deformation maps of Ti32.8Zr30.2Ni5.3Cu9Be22.7 MG in strain rate-temperature coordinate axes under compression and tension. The blue, red and black dots indicate the shear localization, non-Newtonian flow and Newtonian flow, respectively.

  • Figure 4

    Schematic illustration of the effect of normal stress on the atomic motion and the current free volume content. The orange and blue circles represent the atomic positions before and after loading, respectively, showing that the σcn decreases slightly the current free volume content while the σtn largely increases it.

qqqq

Contact and support