| 566 | 6 | 144 |
| 下载次数 | 被引频次 | 阅读次数 |
基于内变量法，建立了Ti_2AlNb合金成形-热处理过程组织和力学性能预测模型，通过遗传算法求解出该模型的一系列参数，并进行了实验验证。将该模型应用于有限元模拟，实现了成形-热处理过程的微观组织和力学性能全流程一体化模拟。通过该模型对Ti_2AlNb合金板材高温自由胀形和管材高温压制进行了模拟，模拟结果与实验结果一致性较好。通过成形-热处理过程组织和性能预测模型可以对构件成形-热处理过程中的变形、微观组织和力学性能进行准确的模拟和预测，指导Ti_2AlNb合金薄壁件的成形和热处理工艺的制定。
Abstract：The prediction model of microstructure and mechanical properties for Ti_2AlNb alloy during forming-heat treatment process was established based on internal variable method, and the parameters of model were solved by genetic algorithm and the model was verified by experiments. The model was applied to finite element simulation, and the whole process simulation of microstructure and mechanical properties of forming-heat treatment was realized. The model was used to simulate the free bulging of Ti_2AlNb alloy sheet and the pressing of Ti_2AlNb alloy pipe at high temperature, and the simulation results are in good agreement with the experiment results. Through the prediction model of microstructure and mechanical properties during hot forming-heat treatment, the deformation, the microstructure and the mechanical properties of components in the process can be accurately simulated and predicted, which can guide the formulation of hot forming and heat treatment process for Ti_2AlNb alloy thin-walled components.
[1] BARARPOUR S M,AVAL H J,JAMAATI R.Cellular automaton modeling of dynamic recrystallization in Al-Mg alloy coating fabricated using the friction surfacing process[J].Surface and Coatings Technology,2020,407:126784.
[2] CAI Y,SUN C Y,LI Y L,et al.Phase field modeling of discontinuous dynamic recrystallization in hot deformation of magnesium alloys[J].International Journal of Plasticity,2020,133:102773.
[3] CHUN Y B,SEMIATIN S L,HWANG S K.Monte Carlo modeling of microstructure evolution during the static recrystallization of cold-rolled,commercial-purity titanium[J].Acta Materialia,2006,54(14):3673-3689.
[4] SHERSTNEV P,SOMMITSCH C,MITSCHE S,et al.Physical based microstructure modelling coupled with nucleation theory during and after hot forming of AA5083[J].Advanced Materials Research,2010,89-91:509-514.
[5] LIN J,LIU Y.A set of unified constitutive equations for modelling microstructure evolution in hot deformation[J].Journal of Materials Processing Technology,2003,143-144:281-285.
[6] LIN J,LIU Y,FARRUGIA D C J,et al.Development of dislocation-based unified material model for simulating microstructure evolution in multipass hot rolling[J].Philosophical Magazine,2005,85(18):1967-1987.
[7] FAKIR O E,WANG L,BALINT D,et al.Numerical study of the solution heat treatment,forming,and in-die quenching (HFQ) process on AA5754[J].International Journal of Machine Tools and Manufacture,2014,87:39-48.
[8] YONG L A,LONG Y B,JHZ C,et al.A physical-based unified constitutive model of AA7075 for a novel hot forming condition with pre-cooling[J].Journal of Alloys and Compounds,2021,876:160142.
[9] CHEN F L,QU H T,WU W,et al.A physical-based plane stress constitutive model for high strength AA7075 under hot forming conditions[J].Metals-Open Access Metallurgy Journal,2021,11(2):314.
[10] XIAO W C,WANG B Y,KANG Y.Applying the damage constitutive model for predicting thermal deformation of AA7075 aluminum sheet[J].Procedia Engineering,2017,207:149-154.
[11] ZENG R,HUANG L,LI J,et al.Quantification of multiple softening processes occurring during multi-stage thermoforming of high-strength steel[J].International Journal of Plasticity,2019,120:64-87.
[12] MU Y H,ZHOU J,WANG B Y,et al.Numerical simulation of hot stamping by partition heating based on advanced constitutive modelling of 22MnB5 behaviour[J].Finite Elements in Analysis and Design,2018,147:34-44.
[13] YANG L,WANG B,LIU G,et al.Behavior and modeling of flow softening and ductile damage evolution in hot forming of TA15 alloy sheets[J].Materials & Design,2015,85:135-148.
[14] YASMEEN T,SHAO Z,ZHAO L,et al.Constitutive modeling for the simulation of the superplastic forming of TA15 titanium alloy[J].International Journal of Mechanical Sciences,2019,164:105178.
[15] WU Y,WANG D,LIU Z,et al.A unified internal state variable material model for Ti2AlNb-alloy and its applications in hot gas forming[J].International Journal of Mechanical Sciences,2019,164:105126.
[16] LIFSHITZ I M,SLYOZOV V.The kinetics of precipitation from supersaturated solid solutions[J].Journal of Physics & Chemistry of Solids,1961,19(1):35-50.
[17] WU Y,LIU G,JIN S,et al.Microstructure and mechanical properties of Ti2AlNb cup-shaped part prepared by hot gas forming:determining forming temperature,strain rate and heat-treatment[J].International Journal of Advanced Manufacturing Technology,2017,92(9):4583-4594.
[18] JIAO X,WANG D,YANG J,et al.Microstructure analysis on enhancing mechanical properties at 750 ℃ and room temperature of Ti-22Al-24Nb-0.5Mo alloy tubes fabricated by hot gas forming[J].Journal of Alloys and Compounds,2019,789:639-646.
[19] XUE C,ZENG W D,WANG W,et al.Coarsening behavior of lamellar orthorhombic phase and its effect on tensile properties for the Ti-22Al-25Nb alloy[J].Materials Science and Engineering:A,2014,611:320-325.
[20] LIN J,HO K C,DEAN T A.An integrated process for modelling of precipitation hardening and springback in creep age-forming[J].International Journal of Machine Tools and Manufacture,2006,46(11):1266-1270.
[21] ZHAN L,LIN J,DEAN T A,et al.Experimental studies and constitutive modelling of the hardening of aluminium alloy 7055 under creep age forming conditions[J].International Journal of Mechanical Sciences,2011,53(8):595-605.
[22] WHELAN M J.On the kinetics of precipitate dissolution[J].Metal Science,1969,3(1):95-97.
[23] WU L,FERGUSON W G.Modelling of precipitation hardening in casting aluminium alloys[J].Materials Science Forum,2009,618-619:203-206.
[24] AVRAMI M P.Granulation,phase change,and microstructure kinetics of phase change.III[J].Journal of Chemical Physics,1941,9(2).doi:10.1063/1.1750872.
[25] MA Z Y,MISHRA R S.Cavitation in superplastic 7075 Al alloys prepared via friction stir processing[J].Acta Materialia,2003,51(12):3551-3569.
[26] FU Y,LV M,ZHAO Q,et al.Investigation on the size and distribution effects of O phase on fracture properties of Ti2AlNb superalloy by using image-based crystal plasticity modeling[J].Materials Science and Engineering A,2021,805(4):140787.
[27] VOYIADJIS G Z,SHOJAEI A,LI G.A thermodynamic consistent damage and healing model for self healing materials[J].International Journal of Plasticity,2011,27(7):1025-1044.
[28] SHERCLIFF H R,ASHBY M F.A process model for age hardening of aluminium alloys-I.The model[J].Acta Metallurgica Et Materialia,1990,38(10):1789-1802.
[29] KOCKS A S A M.Models for macroscopic slip[J].Progress in Materials Science,1975,19:171-229.
[30] LABUSCH R.A statistical theory of solid solution hardening[J].Physica Status Solidi,1970,41(2):659-669.
[31] WU Y,LIU G,LIU Z,et al.Formability and microstructure of Ti22Al24.5Nb0.5Mo rolled sheet within hot gas bulging tests at constant equivalent strain rate[J].Materials & Design,2016,108:298-307.
基本信息:
中图分类号:TG166.5
引用信息:
[1]刘钢,刘志强,王东君,等.Ti_2AlNb合金薄壁件成形-热处理过程组织和力学性能预测模型[J].塑性工程学报,2022,29(02):150-160.
基金信息:
国家自然科学基金资助项目(51605084); 中央高校基本科研业务专项资金资助资助(N2103021)
2022-03-01
2022-03-01
2022-03-01