Controlled precipitation by thermal engineered laser shock peening and its effect on dislocation pinning: Multiscale dislocation dynamics simulation and experiments
Source abstract
Abstract
Abstract This study quantitatively investigates a novel surface processing technique, thermal engineered laser shock peening (LSP), which takes advantage of dynamic precipitation, dynamic strain aging and static aging effects to obtain the optimal microstructures for the extended fatigue life of metallic components. The mechanism of thermal engineered LSP was discussed in terms of the dislocation pinning effect and the precipitation kinetics. Multiscale discrete dislocation dynamic simulation was carried out to study the pinning strength affected by precipitate parameters, such as volume percentages and sizes. The mechanism of mechanical properties enhancement, such as surface hardness and cyclic stability of surface strength, were investigated by experiments and compared with the simulation results.
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Research context
OpenAlex topics: Surface Treatment and Residual Stress · High-Velocity Impact and Material Behavior · Erosion and Abrasive Machining
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Ding · 2009
2. Laser shock processing and its effects on microstructure and properties of metal alloys: a review10.1016/S0142-1123(02)00022-1 ↗
3. High temperature fatigue behavior and residual stress stability of laser-shock peened and deep rolled austenitic steel AISI 30410.1016/j.scriptamat.2004.02.012 ↗
4. Fatigue performance improvement in AISI 4140 steel by dynamic strain aging and dynamic precipitation during warm laser shock peening10.1016/j.actamat.2010.10.032 ↗
5. Liao Y, Ye C, Kim B, Suslov S, Stach EA, Cheng GJ. Nucleation of highly dense nanoscale precipitates based on warm laser shock peening. J Appl Phys 2010.10.1063/1.3481858 ↗
6. Warm laser shock peening: new developments and process optimization10.1016/j.cirp.2011.03.115 ↗
7. The mechanisms of thermal engineered laser shock peening for enhanced fatigue performance10.1016/j.actamat.2012.06.024 ↗
8. Dynamic simulations of the interaction between dislocations and dilute particle concentrations in metal–matrix composites (MMCs)10.1016/j.ijplas.2003.10.003 ↗
9. Dislocation dynamics simulations of the interaction between a short rigid fiber and a glide circular dislocation pile-up10.1016/S0927-0256(01)00253-1 ↗
10. Modelling of irradiation-induced hardening in metals using dislocation dynamics10.1080/09500830110069297 ↗
11. Discrete dislocation simulations of precipitation hardening in inverse superalloys10.1080/09500830600618215 ↗
12. Chen ZZ, Kioussis N, Ghoniem N. Influence of nanoscale Cu precipitates in alpha-Fe on dislocation core structure and strengthening. Phys Rev B 2009;80.10.1103/PhysRevB.80.184104 ↗
13. Kolluri K, Gungor MR, Maroudas D. Molecular-dynamics simulations of stacking-fault-induced dislocation annihilation in prestrained ultrathin single-crystalline copper films. J Appl Phys 2009;105.10.1063/1.3120916 ↗
14. Shim JH, Kim DI, Jung WS, Cho YW, Hong KT, Wirth BD. Atomistic study of temperature dependence of interaction between screw dislocation and nanosized bcc Cu precipitate in bcc Fe. J Appl Phys 2008;104.10.1063/1.3003083 ↗
15. Dislocation–dislocation and dislocation-twin reactions in nanocrystalline Al by molecular dynamics simulation10.1016/S1359-6454(03)00232-5 ↗
16. Length-scale effects in the nucleation of extended dislocations in nanocrystalline Al by molecular-dynamics simulation10.1016/S1359-6454(01)00167-7 ↗
17. Kinetics of heterogeneous dislocation precipitation of NbC in alpha-iron10.1016/j.actamat.2008.07.044 ↗
18. Kinetic Monte Carlo simulation of dislocation dynamics10.1103/PhysRevB.60.3799 ↗
19. A multiscale model of plasticity10.1016/S0749-6419(01)00044-4 ↗
20. A multiscale model of plasticity based on discrete dislocation dynamics10.1115/1.1421351 ↗
21. Discrete dislocation dynamics simulation of cutting of gamma’ precipitate and interfacial dislocation network in Ni-based superalloys10.1016/j.ijplas.2005.05.004 ↗
22. The stress field of a general circular Volterra dislocation loop: analytical and numerical approaches10.1080/095008300176353 ↗
23. Physical study of laser-produced plasma in confined geometry10.1063/1.346783 ↗
24. Peyre P, Scherpereel X, Berthe L, Fabbro R. Current trends in laser shock processing. Surface modification technologies, vol. Xi 1998. p. 591.10.1179/sur.1998.14.5.377 ↗
25. X-ray diffraction peaks due to misfit dislocations in heteroepitaxial structures10.1103/PhysRevB.55.1793 ↗
26. X-ray diffraction analysis of the defect structure in AlxGa1−xN films grown by metalorganic chemical vapor deposition10.1023/B:JMSC.0000016202.96505.51 ↗
27. The kinetics of precipitation from supersaturated solid solutions10.1016/0022-3697(61)90054-3 ↗
28. Theorie Der Alterung Von Niederschlagen Durch Umlosen (Ostwald-Reifung)
29. Modelling the kinetics of strain induced precipitation in Nb microalloyed steels10.1016/S1359-6454(00)00389-X ↗
30. Mechanism and kinetics of strain induced precipitation of Nb(C, N) in austenite10.1016/0956-7151(92)90006-Z ↗
31. Warm laser shock peening driven nanostructures and their effects on fatigue performance in aluminum alloy 616010.1002/adem.200900290 ↗