中文

Chinese Journal of Nature >

2021 , Vol. 43 >Issue 1: 53 - 60

DOI: https://doi.org/10.3969/j.issn.0253-9608.2021.01.008

Progress

Large activation entropy is a key factor to trigger the memory effect of amorphous alloys

Expand
  • Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang Province, China  

Received date: 2020-10-27

  Online published: 2021-02-25

Fold

Abstract

The enthalpy and volume of materials in metastable states, such as amorphous materials and glasses, always decay simultaneously through an energy-driven process called ‘‘ageing’’. This is one of the intrinsic characteristics of non-equilibrium systems. As opposed to the common monotonic relaxation process of ageing, the memory effect describes an isothermal annealing experiment, in which the enthalpy/volume of a pre-annealed glass first increases before finally decreasing towards equilibrium. If the system reaches its equilibrium state, its memory to the past states will vanish thoroughly. For the past half century, phenomenological models such as the Tool-Narayanaswamy-Moynihan (TNM) model have been used to describe the memory effect, but its underlying physical mechanismsare still not clear. In this paper, the relaxation kinetics in single and two-temperature annealing processes was studied. According to our research, there was a transition from β relaxation to α relaxation in amorphous alloys during isothermal annealing. We further discovered that a large activation entropy (S*) is the key factor to trigger on the memory effect. These results open a gate for understanding the physical origin of non-equilibrium systems and precisely modifying their properties.

Cite this article

SONG Lijian, XU Wei, HUO Juntao, WANG Junqiang . Large activation entropy is a key factor to trigger the memory effect of amorphous alloys[J]. Chinese Journal of Nature, 2021 , 43(1) : 53 -60 . DOI: 10.3969/j.issn.0253-9608.2021.01.008

References

[1] KOVACS A J. Transition vitreuse dans les polymères amorphes. Etude phénoménologique [J]. Fortschritte der HochpolymerenForschung, 1963, 3: 394.

[2] HAN Y B, WANG A D, HE A N, et al. Improvement of magnetic properties, microstructure and magnetic structure of Fe73.5Cu1Nb3Si15.5B7 nanocrystalline alloys by two-step annealing process [J]. J Mater Sci: Mater Electron, 2015, 27(4): 3736.

[3] TOOL A Q. Relaxation between inelastic deformability and thermal expansion of glass in its annealing range [J]. Journal of the American Ceramic Society, 1946, 29(9): 240. 

[4] NARAYANASWAMY O S. A model of structural relaxation in glass [J]. Journal of the American Ceramic Society, 1971, 54(10): 491.

[5] MOYNIHAN C T, MACEDO P B, MONTROSE C J, et al. Structural relaxation in vitreous materials [J]. Annals of the New York Academy of Sciences, 1976, 279: 15. 

[6] AJI D P B, WEN P, JOHARI G P. Memory effect in enthalpy relaxation of two metal-alloy glasses [J]. Journal of Non-Crystalline Solids, 2007, 353(41): 3796-3811. 

[7] GRASSIA L, KOH Y P, ROSA M, et al. Complete set of enthalpy recovery data using Flash DSC: experiment and modeling [J]. Macromolecules, 2018, 51(4): 1549.

[8] LOPEZ E, SIMON S L. Signatures of structural recovery in polystyrene by nanocalorimetry [J]. Macromolecules, 2016, 49(6): 2365. 

[9] BOESCH L, NAPOLITANO A,MACEDO P B. Spectrum of volume relaxation times in B2O3 [J]. Journal of the American Ceramic Society, 1970, 53: 148. 

[10] LAHINI Y, GOTTESMAN O, AMIR A, et al. Nonmonotonic aging and memory retention in disordered mechanical systems [J]. Physical Review Letters, 2017, 118(8): 085501.

 [11] VAN BRUGGEN E, VAN DER LINDEN E, HABIBI M. Tailoring relaxation dynamics and mechanical memory of crumpled materials by friction and ductility [J]. Soft Matter, 2019, 15(7): 1633. 

[12] DILLAVOU S, RUBINSTEIN S M. Nonmonotonic aging and memory in a frictional interface [J]. Physical Review Letters, 2018, 120(22): 224101. 

[13] MURPHY K A, KRUPPE J W, JAEGER H M. Memory in nonmonotonic stress relaxation of a granular system [J]. Physical Review Letters, 2020, 124(16): 168002.

 [14] PRADOS A, TRIZAC E. Kovacs-like memory effect in driven granular gases [J]. Physical Review Letters, 2014, 112(19): 198001.

 [15] YU H B, WANG W H, BAI H Y, et al. The β-relaxation in metallic glasses [J]. National Science Review, 2014, 1(3): 429.

 [16] DEBENEDETTI P G, STILLINGER F H. Supercooled liquids and the glass transition [J]. Nature, 2001, 410: 259. 

[17] YU H B, SHEN X, WANG Z, et al. Tensile plasticity in metallic glasses with pronounced β relaxations [J]. Physical Review Letters, 2012, 108 (1): 015504.

 [18] ZHU F, SONG S X, REDDY K M, et al. Spatial heterogeneity as the structure feature for structure-property relationship of metallic glasses [J]. Nature Communications, 2018, 9 (1): 3965. 

[19] HE N N, SONG L J, XU W, et al. The evolution of relaxation modes during isothermal annealing and its influence on properties of Febased metallic glass [J]. Journal of Non-Crystalline Solids, 2019, 509: 95.

 [20] 汪卫华. 非晶态物质的本质和特性[J]. 物理学进展, 2013, 33: 177.

 [21] SONG L J, XU W, HUO J T, et al. Two-step relaxations in metallic glasses during isothermal annealing [J]. Intermetallics, 2018, 93: 101. 

[22] CHEN H S. On mechanisms of structural relaxation in a Pa48Ni32P20 glass [J]. Journal of Non-Crystalline Solids, 1981, 46: 289. 

[23] LEE J C. Calorimetric study of β-relaxation in an amorphous alloy: An experimental technique for measuring the activation energy for shear transformation [J]. Intermetallics, 2014, 44: 116. 

[24] SCHROERS J, LOHWONGWATANA B, JOHNSON W L, et al. Gold based bulk metallic glass [J]. Applied Physics Letters, 2005, 87(6): 061912. 

[25] LI M X, LUO P, SUN Y T, et al. Significantly enhanced memory effect in metallic glass by multistep training [J]. Physical Review B, 2017, 96(17): 174204. 

[26] WANG L-M, TIAN Y, LIU R, et al. A “universal” criterion for metallic glass formation [J]. Applied Physics Letters, 2012, 100(26): 261913.

[27] LI P F, GAO P, LIU Y D, et al. Melting entropy and its connection to kinetic fragility in glass forming materials [J]. Journal of Alloys and Compounds, 2017, 696: 754-759.

[28] WANG W H. Bulk metallic glasses with functional physical properties [J]. Advanced Materials 2009, 21(45): 4524. 

[29] SONG L J, XU W, HUO J T, et al. Activation entropy as a key factor controlling the memory effect in glasses [J]. Physical Review Letters, 2020, 125(13): 135501. 

[30] CAGLE F W, EYRING H. An application of the absolute reaction rate theory to some problems in annealing [J]. Journal of Applied Physics, 1951, 22(6): 771.

Options
Outlines

/

〈 〉