通过轧后控冷至贝氏体等温区间并采用不同等温工艺研究了贝氏体区等温时间对TRIP钢组织性能的影响.研究表明,随着等温时间的延长,残留奥氏体含量和稳定性逐渐降低.各等温工艺下残留奥氏体晶粒尺寸均主要分布在0.1～1μm区间范围内,平均晶粒尺寸随着等温时间的延长有逐渐增大的趋势.贝氏体区等温30 min和60 min时,TRIP钢的力学性能优异,强塑积超过了22000 MPa·％;模拟卷取过程的等温60 min后随炉缓冷至室温时,由于组织中残留奥氏体含量和稳定性大幅度降低,TRIP效应不理想.钢板的力学性能显著恶化,抗拉强度和伸长率仅为847 MPa和20％.
参考文献
| [1] | 尹云洋,杨王玥,李龙飞,孙祖庆,王西涛.Al部分替代Si对基于动态相变热轧TRIP钢组织控制的影响[J].金属学报,2008(11):1292-1298. |
| [2] | 路洪洲,李斌,吴娥梅,梅华生,王宇慧,孙智富.汽车用高强度TRIP钢组织性能及成形工艺[J].精密成形工程,2012(02):6-9. |
| [3] | E. V. Pereloma;I. B. Timokhina;P. D. Hodgson .Transformation behaviour in thermomechanically processed C-Mn-Si TRIP steels with and without Nb[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1999(0):448-452. |
| [4] | 刘建勋,李壮,吴迪,迟伟凡.新一代热轧TRIP钢的研究[J].东北大学学报（自然科学版）,2006(04):418-421. |
| [5] | Girault E;Mertens A;Jacques P .Comparison of the effects of silicon and aluminium on the tensile behaviour of multiphase TRIP assisted steels[J].Scripta Materialia,2001,44(06):885-892. |
| [6] | 班丽丽,惠卫军,雍岐龙,翁宇庆,董瀚.热处理工艺对中碳TRIP钢微观组织及力学性能的影响[J].材料热处理学报,2008(05):53-58. |
| [7] | 吴迪,刘建勋,李壮,徐佩笔.热轧TRIP钢组织性能的研究[J].材料科学与工艺,2007(04):460-464. |
| [8] | 高绪涛,孙蓟泉,赵爱民,张明明,唐荻.贝氏体区等温时间对TRIP钢残奥及力学性能影响[J].材料科学与工艺,2011(06):123-128. |
| [9] | Emadoddin E;Akbarzadeh A;Daneshi Gh .Effect of intercritical annealing on retained austenite characterization in textured TRIP-assited steel sheet[J].Materials Characterization,2006,57:408-413. |
| [10] | 苏航;杨才福;柴锋.热力学、动力学计算技术在钢铁材料研究中的应用[M].北京:科学出版社,2012:84-87. |
| [11] | 翁宇庆.超细晶钢-钢的组织细化理论与控制技术[M].北京:冶金工业出版社,2003:72-128. |
| [12] | 尹云洋 .基于动态相变的热轧TRIP钢组织控制及性能研究[D].北京科技大学,2009. |
| [13] | I. B. TIMOKHINA;P. D. HODGSON;E. V. PERELOMA .Effect of Deformation Schedule on the Microstructure and Mechanical Properties of a Thermomechanically Processed C-Mn-Si Transformation-Induced Plasticity Steel[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2003(8):1599-1609. |
| [14] | 李壮,吴迪.热机械控制工艺对热轧TRIP钢力学性能的影响[J].钢铁,2007(02):39-43. |
| [15] | Arif Basuki;Etienne Aernoudt .Influence of rolling of TRIP steel in the intercritical region on the stability of retained austenite[J].Journal of Materials Processing Technology,1999(0):37-43. |
| [16] | I.B. Timokhina;P.D. Hodgson;E.V. Pereloma .Effect of Microstructure on the Stability of Retained Austenite in Transformation-Induced-Plasticity Steels[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2004(8):2331-2341. |
| [17] | 高绪涛 .Nb、V、N微合金化热轧TRIP钢组织演变与相变增塑效应[D].北京:北京科技大学,2012. |
| [18] | Atsushi ITAMI;Manabu TAKAHASHI;Kosaku USHIODA .Plastic stability of retained austenite in the cold-rolled 0.14％ C-1.9％ Si-1.7％ Mn sheet steel[J].ISIJ International,1995,35(09):1121-1127. |
| [19] | Seong B S;Shin E J;Han Y S et al.Effect of retained austenite and solute carbon on the mechanical properties in TRIP steels[J].PHYSICA B,2004,350(01):e467-e469. |
| [20] | Zarei Hanzaki A;Hodgson P D;Yue S .Retained austenite characteristics in thermomechanically processed Si-Mn transformation-induced plasticity steels[J].Metallurgical and Meterials Transactions A,1997,28:2405-2414. |
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