Thermodynamic prediction of the increment of the formation temperature of proeutectoid ferrite by applied stress is nearly consistent with the experimental data. Kinetics models for ferrite, pearlite and bainite transformations can be shown as modified Johnson-Mehl-Avrami equation in which parameter b(σ) varies with the level of applied stress.The effects of tensile and compressive stresses on enhancement of the ferrite/pearlite and bainite transformations are discussed. The necessity and approach of modification of additivity hypothesis are introduced and the results from modified equation in which some parameters are obtained by regression of two experimental results or taken from TTT and CCT diagrams of a certain steel are superior than that from Scheil's equation. Thermodynamic calculation of Ms and nucleation kinetics equations of martensitic transformation under stress are suggested. Modeling of phase transformations under stress in ferrous alloys is briefly described.
参考文献
| [1] | H I Aaronson;H A Domain;G M Pound .Thermodynamics of the austenite→proeutectoid ferrite transformation[J].Transactions of the Metallurgical Society of AIME,1966,236:753-767. |
| [2] | ZHU Hong-tao;CHANG Hong-bing;XU Zu-yao .Simplified Thermodynamic Model for Pro-Eutectoid Ferrite Formation in Multicomponent Structural Steel[J].Journal of iron and steel research,2003(2):33-37. |
| [3] | G J Shiflet;J R Bradley;H I Aaronson .A re-examination of the thermodynamics of the proeutectoid ferrite transformation on Fe-C alloys[J].Metallurgical and Materials Transactions,1978,9A:999-1008. |
| [4] | A J Dinsdale .SGJE data for pure elements[J].CALPHAD-Computer Coupling of Phase Diagrams and Thermochemistry,1991,15:317-425. |
| [5] | J. S. YE;H. B. CHANG;T. Y. HSU .A kinetics model of isothermal ferrite and pearlite transformations under applied stress[J].ISIJ International,2004(6):1079-1085. |
| [6] | T Y Hsu;Xu Zuyao .Effect of stresses on bainitic transformation in steel[J].Acta Metall Sin,2004,40:113-119. |
| [7] | S Denis;E Gautier;A Simon;G Beck .Influence of stresses on the kinetics of pearlitic transformation during continuous cooling[J].Acta Materialia,1987,35:1621-1632. |
| [8] | W F Lange Ⅲ;M Enomoto;H I Aaronson .The kinetics of ferrite nucleation at austenite grain boundaries in Fe-C alloys[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1988,19A:427-440. |
| [9] | T Y Hsu;Xu Zuyao;Y W Mou .Thermodynamics of the bainitic transformation in Fe-C alloys[J].Acta Metallurgy,1984,32:1469-1481. |
| [10] | T Y Hsu;Xu Zuyao .Chen Weizhong Effect of austenite strengthening on martensitic and bainitic transformations[J].Scripta Metallurgica et Materialia,1987,27:1289-1294. |
| [11] | F M B Fernanoles;S Denis;A Simon .Mathematical model coupling phase transformation and temperature evolution during quenching of steels[J].Materials Science and Technology,1985,1:838-844. |
| [12] | J. S. YE;H. B. CHANG;T. Y HSU(XU ZUYAO) .On the Application of the Additivity Rule in Pearlitic Transformation in Low Alloy Steels[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2003(6):1259-1264. |
| [13] | Y T Zhu;T C Lowe .Application of and precautions for the use of the rule of additivity in phase transformation[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,2000,3lB:675-682. |
| [14] | J. S. YE;T. Y. HSU (XU Zuyao) .Modification of the Additivity Hypothesis with Experiment[J].ISIJ International,2004(4):777-779. |
| [15] | J R Patel;M Cohen .Criterion for the action of applied stress in martensitic transformation[J].Acta Metallurgy,1953,1:531-538. |
| [16] | E Gautier;A Simon;G Collette;G Beck .Effect of strain on martensitic transformation in a Fe-Ni-Mo-C alloy with a high Ms temperature[J].Journal de Physique,1982,43:C4-473-477. |
| [17] | T Y Hsu;Xu Zuyao .An approximate approach for the calculation of Ms in iron-base alloys[J].Journal of Materials Science,1985,20:23-31. |
| [18] | T Y Hsu;Xu Zuyao .Chang Hongbing Luo Shoufu On the thermodynamic calculation of Ms and on driving force for martensitic transformations in Fe-C[J].Journal of Materials Science,1983,18:3206-3212. |
| [19] | T Y Hsu;Xu Zuyao .Chang Hongbing On calculation of Ms and driving force for martensitic transformation in Fe-C[J].Acta Materialia,1984,32:343-348. |
| [20] | H Chang;T Y Hsu;Xu Zuyao .Thermodynamic prediction of Ms and driving force for martensitic transformation in Fe-Mn-C alloys[J].Acta Materialia,1986,34:333-338. |
| [21] | Mou Yiwen;T Y Hsu;Xu Zuyao .C-C interaction energy in Fe-C alloys[J].Acta Materialia,1986,34:325-331. |
| [22] | D Turnbull;J C Fisher .Rate of nucleation in condensed systems[J].Journal of Chemical Physics,1949,17:71-73. |
| [23] | L Kaufman;M Cohen.Thermodynamics and kinetics of martensitic transformation[A].Pergamon Press:Oxford,1959:165-246. |
| [24] | U F Kocks;A S Argon;M F Ashby.Thermodynamics and kinetics of slip[A].Pergamon Press:Oxford,1975 |
| [25] | G Ghosh;G B Olson .Kinectics of FCC→BCC heterogeneous martensitic nucleation- Ⅱ Thermal activation[J].Acta Metallurgica Et Materialia,1994,42:3371-3379. |
| [26] | M X Zhang;P M Kelly;J D Gates .A model of stress induced martensitic transformation in Fe-Ni-C alloy[J].Materials Science and Engineering,1999,A273-275:251-256. |
| [27] | A. Artemev;Y. Wang .THREE-DIMENSIONAL PHASE FIELD MODEL AND SIMULATION OF MARTENSITIC TRANSFORMATION IN MULTILAYER SYSTEMS UNDER APPLIED STRESSES[J].Acta materialia,2000(10):2503-2518. |
| [28] | T Y Hsu;Xu Zuyao .Fundamentals of the unified technology combining plastic forming and heat treatment of materials[J].Engineering Scinece(Chinese Academy of Engineering),2004,6:16-21. |
| [29] | M. Tang;J. H. Zhang;T. Y. Hsu (Xu Zuyao) .One-dimensional model of martensitic transformations[J].Acta materialia,2002(3):467-474. |
| [30] | Yu Zhao;Jihua Zhang;T. Y. Hsu (Xu Zuyao) .Soliton interpretation of relation between driving force and velocity of interface motion in martensitic transformation[J].Journal of Applied Physics,2000(7):4022-4025. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%