研究了退火及固溶处理对热轧态Fe-22Mn-0.6C TWIP钢组织和力学性能的影响.结果表明,退火或固溶处理后,试验钢的屈服强度明显降低;退火后塑性升高,固溶处理后塑性降低;但3种状态下的硬化行为相似.SEM-EBSD和OM的结果表明,屈服强度和塑性的变化主要与晶粒尺寸有关,但是,晶粒尺寸对试验钢硬化行为的作用不明显.
Effect of annealing and solid solution heat treatment on microstructure and mechanical behavior of Fe-22Mn-0.6C TWIP steel was investigated.It is found that the yield strength decreases obviously after heat treatments.Ductility increases after annealing whereas decreases after solid solution.Similar work hardening behavior is observed for the steel in all tested conditions.SEM-EBSD and OM results show that the grain size grows obviously after heat treatments,and the variation of yield strength and ductility mainly results from the effect of grain size.But grain size has minor effect on the work hardening behavior of the investigated steel.
参考文献
| [1] | I. KARAMAN;H. SEHITOGLU;H. J. MAIER .COMPETING MECHANISMS AND MODELING OF DEFORMATION IN AUSTENITIC STAINLESS STEEL SINGLE CRYSTALS WITH AND WITHOUT NITROGEN[J].Acta materialia,2001(19):3919-3933. |
| [2] | Kalidindi SR. .Modeling the strain hardening response of low SFE FCC alloys[J].International Journal of Plasticity,1998(12):1265-1277. |
| [3] | Q. X. Dai;X. N. Cheng;X. M. Luo .Structural parameters of the martensite transformation for austenitic steels[J].Materials Characterization,2002(4):367-371. |
| [4] | Allain S;Chateau J P;Bouaziz O .A physical model of the twinning-induced plasticity effect in a high manganese austenitic steel[J].Steel Research International,2002,73(02):299-300. |
| [5] | Frommeyer G;Brüx U .Microstructures and mechanical properties of high strength Fe-Mn-Al-C light weight TRIPLEX steels[J].Steel Research International,2006,77(04):627-633. |
| [6] | D. Cornette;P. Cugy;A. Hildenbrand .Ultra High Strength FeMn TWIP Steels for automotive safety parts[J].Revue de Metallurgie: Cahiers d'Informations Techniques,2005(12):905-918. |
| [7] | Han Y S;Hong S H .The effect of Al on mechanical properties and microstructures of Fe-32Mn-12Cr-xAl-0.4C cryogenic alloys[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1997,222(01):76-83. |
| [8] | B.X. Huang;X.D. Wang;Y.H. Rong .Mechanical behavior and martensitic transformation of an Fe-Mn-Si-Al-Nb alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(0):306-311. |
| [9] | S. Vercammen;B. Blanpain;B. C. De Cooman .Cold rolling behaviour of an austenitic Fe-30Mn-3Al-3Si TWIP-steel: the importance of deformation twinning[J].Acta materialia,2004(7):2005-2012. |
| [10] | O.Bouaziz;S.Allain;C.Scott .Effect of grain and twin boundaries on the hardening mechanisms of twinning-induced plasticity steels[J].Scripta materialia,2008(6):484-487. |
| [11] | Chen F C;Chou C P;Li P et al.Effect of aluminium on TRIP Fe-Mn-Al alloy steels at room temperature[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1993,160(02):261-270. |
| [12] | Allain S;Chateau J P;Bouaziz O .Correlations between the calculated stacking fault energy and the plasticity mechanisms in Fe-Mn-C alloys[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2004,387-389(15):143-147. |
| [13] | Hamada AS;Karjalainen LP;Somani MC .The influence of aluminum on hot deformation behavior and tensile properties of high-Mn TWIP steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2007(1-2):114-124. |
| [14] | C. Scott;S. Allain;M. Faral .The development of a new Fe-Mn-C austenitic steel for automotive applications[J].Revue de Metallurgie: Cahiers d'Informations Techniques,2006(6):293-302. |
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