A nucleation rate limited model for grain boundary creep
Source abstract
Abstract
The motion of grain boundary (GB) dislocations, via a combination of glide and climb, mediates GB plasticity during processes such as creep and GB stress relaxation. Creep within the low stress regime, where non-Newtonian GB creep occurs, remains poorly understood. Models for GB dislocation nucleation rate limited creep, however, have not been sufficiently developed previously in the literature. Herein, a model for nucleation rate limited kinetics is developed and demonstrated to describe existing creep data reasonably well, using physically realistic materials properties as inputs to the model.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Microstructure and mechanical properties · High Temperature Alloys and Creep · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (67)
Show source-provided references
1. A model for boundary diffusion controlled creep in polycrystalline materials10.1063/1.1702656 ↗
2. Diffusion-accommodated flow and superplasticity10.1016/0001-6160(73)90057-6 ↗
3. Pressure sintering: mechanisms and microstructures for alumina and magnesia10.1111/j.1151-2916.1963.tb13781.x ↗
4. Competing grain-boundary- and dislocation-mediated mechanisms in plastic strain recovery in nanocrystalline aluminum10.1073/pnas.0901765106 ↗
5. Initial sintering of alumina and hematite10.1111/j.1151-2916.1958.tb13519.x ↗
6. Diffusional viscosity of a polycrystalline solid10.1063/1.1699681 ↗
7. Grain-boundary kinetics: a unified approach10.1016/j.pmatsci.2018.05.004 ↗
8. Interface reaction controlled diffusional creep: a consideration of grain boundary dislocation climb sources10.1016/0025-5416(72)90060-2 ↗
9. Diffusion sintering. I. Initial stage sintering models and their application to shrinkage of powder compacts10.1111/j.1151-2916.1963.tb14606.x ↗
10. Constitutive models for the sintering of ceramic components—I. Material models10.1016/0956-7151(92)90183-F ↗
11. Interface reaction controlled creep10.1016/0167-6636(92)90044-E ↗
12. Interface nucleation rate limited densification during sintering10.1016/j.actamat.2022.118448 ↗
13. Rapid sintering of pure and doped α-alumina
14. Ultra-fast firing: effect of heating rate on sintering of 3YSZ, with and without an electric field10.1016/j.jeurceramsoc.2017.01.033 ↗
15. Evidence for interface-rate limited densification kinetics at Al2O3-GdAlO3 interfaces characterized by in situ ultrahigh temperature transmission electron microscopy10.1016/j.jeurceramsoc.2022.06.001 ↗
16. Creep of ceramics10.1007/BF00543808 ↗
17. Interface-reaction control of Nabarro-Herring creep and sintering10.1016/0036-9748(69)90191-4 ↗
18. The growth of crystals and the equilibrium structure of their surfaces
19. Interface controlled diffusional creep10.1016/0001-6160(83)90015-9 ↗
20. Flow processes in superplastic yttria-stabilized zirconia: a deformation limit diagram10.1016/j.msea.2005.06.071 ↗
21. On the role of grain boundary dislocations in high temperature creep10.1080/01418617808239160 ↗
22. Grain boundary dislocation spirals in high-angle (001) twist boundaries in gold
23. Extraneous grain boundary dislocations in low and high angle (001) twist boundaries in gold
24. Thermally-activated deformation of BCC metals and alloys10.1016/0079-6425(92)90004-Q ↗
25. Ultrahigh temperature in situ transmission electron microscopy based bicrystal coble creep in zirconia I: nanowire growth and interfacial diffusivity10.1016/j.actamat.2020.08.069 ↗
26. Ultrahigh temperature in situ transmission electron microscopy based bicrystal coble creep in Zirconia II: interfacial thermodynamics and transport mechanisms10.1016/j.actamat.2020.08.070 ↗
27. High-temperature creep of Y2O3-stabilized ZrO210.1111/j.1151-2916.1975.tb19574.x ↗
28. Deformation of fine-grained alumina by grain boundary sliding accommodated by slip10.1016/S1359-6454(03)00180-0 ↗
29. Creep of Duplex Microstructures10.1111/j.1151-2916.1994.tb04515.x ↗
30. Overview 14 - creep fracture in ceramic Polycrystals—I. creep cavitation effects in polycrystalline alumina
31. The creep of UO2 fuel doped with Nb2O510.1016/0022-3115(81)90478-5 ↗
32. Overview 14 Creep fracture in ceramic polycrystals—I. creep cavitation effects in polycrystalline alumina10.1016/0001-6160(81)90027-4 ↗
33. Plastic deformation of fine-grained Alumina (Al2O3): I, interface-controlled diffusional creep10.1111/j.1151-2916.1980.tb10648.x ↗
34. Intergranular fracture at elevated temperature10.1016/0001-6160(75)90047-4 ↗
35. Cavity nucleation under time-dependent stress concentrations10.1080/01418618808214406 ↗
36. Intergranular cavitation in creeping alloys10.1016/0036-9748(83)90061-3 ↗
37. Introduction to the viewpoint set on creep cavitation10.1016/0036-9748(83)90060-1 ↗
38. Suppression of cavity formation in ceramics: prospects for superplasticity10.1111/j.1151-2916.1980.tb10194.x ↗
39. Analysis of cavity nucleation in solids subjected to external and internal stresses10.1016/0001-6160(85)90078-1 ↗
40. Disconnection description of triple-junction motion10.1073/pnas.1820789116 ↗
41. Quantitative insight into dislocation nucleation from high-temperature nanoindentation experiments10.1038/nmat1429 ↗
42. Molecular-dynamics simulation of grain-boundary diffusion creep10.1023/A:1008664218857 ↗
43. Mechanical behavior of aluminum–silicon nanocomposites: a molecular dynamics study10.1016/j.actamat.2006.05.022 ↗
44. Nanostructure and surface effects on yield in Cu nanowires10.1016/j.actamat.2012.11.053 ↗
45. Intergranular stress distributions in polycrystalline aggregates of irradiated stainless steel10.1016/j.jnucmat.2016.04.017 ↗
46. The diffusional creep of uranium dioxide: its limitation by interfacial processes10.1016/0001-6160(73)90023-0 ↗
47. Grain boundary diffusion creep in magnesium10.1179/030634577790432848 ↗
48. The sintering and morphology of interconnected porosity in UO2 powder compacts10.1007/BF02403522 ↗
49. S.J. Dillon, Y. Ma, E. Lang, J.-h. Ouyang, K. Hattar, Interface nucleation rate limited densification kinetics observed during in situ sintering of Al2O3-SmAlO3, Submitted.
50. Influence of single crystal orientation on homogeneous dislocation nucleation under uniaxial loading10.1016/j.jmps.2007.11.012 ↗
51. Entropic effect on the rate of dislocation nucleation10.1073/pnas.1017171108 ↗
52. Temperature and strain-rate dependence of surface dislocation nucleation10.1103/PhysRevLett.100.025502 ↗
53. Activation energy for nucleation of partial dislocation from grain boundaries10.1016/j.commatsci.2012.05.039 ↗
54. Codoping of Alumina to enhance creep resistance10.1111/j.1151-2916.1999.tb01947.x ↗
55. Role of segregating dopants on the improved creep resistance of aluminum oxide10.1016/S1359-6454(99)00278-5 ↗
56. Diffusional creep and kinetic demixing in Yttria-Stabilized Zirconia10.1111/j.1151-2916.1987.tb05700.x ↗
57. High temperature superplastic creep and internal friction of yttria doped zirconia polycrystals10.1016/0956-7151(93)90099-E ↗
58. Experimental evidence for diffusion creep in the superplastic 3 mol% yttria-stabilized tetragonal zirconia10.1016/S1359-6454(01)00131-8 ↗
59. Analysis of concurrent grain growth during creep of polycrystalline alumina10.1111/j.1151-2916.1986.tb04733.x ↗
60. Creep in nanocrystalline materials: role of stress assisted grain growth10.1016/j.msea.2010.05.048 ↗
61. Effects of grain growth on grain-boundary diffusion creep by molecular-dynamics simulation10.1016/j.actamat.2003.12.048 ↗
62. Increased strain rate sensitivity due to stress-coupled grain growth in nanocrystalline Al10.1016/j.scriptamat.2006.06.002 ↗
63. Diffusion controlled creep in nanocrystalline materials under grain growth10.1016/j.scriptamat.2004.01.002 ↗
64. Effects of grain growth on grain-boundary diffusion creep by molecular-dynamics simulation10.1016/j.actamat.2003.12.048 ↗
65. The nature of the activation volume-stress dependence in the high temperature plasticity of UO210.1016/0022-3115(71)90005-5 ↗
66. The influence of a threshold stress for grain boundary sliding on constitutive response of polycrystalline Al during high temperature deformation10.1016/j.msea.2007.10.089 ↗
67. Yielding transitions and grain-size effects in dislocation theory10.1103/PhysRevE.95.033004 ↗