TRIP steel retained austenite transformation under cyclic V-bending deformation

详细信息    查看全文

• 作者：Hongyang Li (1) (2)
  Yanjing Zhang (1)
  Wenjun Zhao (3)
  Zhifei Gu (3)
  Xianchao Li (1)
  Jinlong Ma (1)
  
• 关键词：TRIP steel ; martensitic transformation ; retained austenite ; cyclic load
• 刊名：Journal of Wuhan University of Technology--Materials Science Edition
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：29
• 期：3
• 页码：594-600
• 全文大小：
• 参考文献：1. Takahashi M. Development of High Strength Steels for Automobiles[C]. / Nippon Steel Tech. Rep., 2003, 88:2-
  2. WANG Sigen, WANG Xu, HUA Lixian. Relationship between Retained Austenite Strain For Si-Mn TRIP Steel [J]. / J. Univ. Sci. Technol. B, 1995, 2(1):7-0
  3. Sugimoto K, Kobayashi M, Yasuki S, / et al. Influence of Deformation Temperature on the Bauschinger Effect of a TRIP-Aided Dual-Phase Steel[J]. / J. Jpn. Inst. Met., 1994, 58(5): 501-06
  4. J B Leblond. Mathematical Modelling of Transformation Plasticity in Steels II: Coupling with Strain Hardening Phenomena[J]. / Int. J. Plast., 1989, 5(6): 573-91 CrossRef
  5. L Taleb and F Sidoroff. A Micromechanical Modeling of the Greenwood-Johnson Mechanism in Transformation induced Plasticity[J]. / Int. J. Plast., 2003, 19(10): 1 821- 842 CrossRef
  6. F D Fischer, M Berveiller, K Tanaka, / et al. Continuum Mechanical Aspects of Phase Transformations in Solids[J]. / Arch. Appl. Mech., 1994, 64(2): 54-5
  7. L Mazzoni-Leduca, T Pardoenb, T J Massart. Strain Gradient Plasticity Analysis of Transformation Induced Plasticity in Multiphase Steels[J]. / Int. J. Solids Struct., 2008, 45(20): 5 397- 418 CrossRef
  8. T Iwamoto and T Tsuta. Computational Simulation on Deformation Behavior of CT Specimens of TRIP Steel under Mode I Loading for Evaluation of Fracture Toughness[J]. / Int. J. Plast., 2002, 18(11): 1 583- 606 CrossRef
  9. S H Li, W J Dan, W G Zhang, / et al. Influences of Cyclic Loading on Martensite Transformation of TRIP Steels[J]. / Met. Mater. Int., 2013, 19(2): 251-57 CrossRef
  10. Y H Yan, G Y Kai, M D Jian. Transformation Behavior of Retained Austenite under Different Deformation Modes for Low Alloyed TRIPassisted Steels[J]. / Mater. Sci. Eng., A, 2006, 441(1): 331-35
  11. T B Hilditch, I B Timokhina, L T Robertson, / et al. Cyclic Deformation of Advanced High-Strength Steels: Mechanical Behavior and Microstructural Analysis[J]. / Metall. Mater. Trans. A, 2009, 40(2): 342-53 CrossRef
  12. K I Sugimoto, M Kobayashi, S I Yasuki. Cyclic Deformation Behavior of a Transformation-Induced Plasticity-Aided Dual-Phase Steel[J]. / Metall. Mater. Trans. A, 1997, 28(12): 2 637- 644 CrossRef
  13. J Stolarz, N Baffie, T Magnin. Effect of Grain Size on Austenite Stability and Room Temperature Low Cycle Fatigue Behaviour of Solution Annealed AISI 316LN Austenitic Stainless Steel[J]. / Mater. Sci. Technol., 2007, 23(11): 1 278- 284 CrossRef
  14. Müller-Bollenhagen C, Zimmermann M, Christ H J. Very High Cycle Fatigue Behavior of Austenitic Stainless Steel and the Effect of Straininduced Martensite[J]. / Int. J. Fatigue, 2010, 32(6): 936-42 CrossRef
  
• 作者单位：Hongyang Li (1) (2)
  Yanjing Zhang (1)
  Wenjun Zhao (3)
  Zhifei Gu (3)
  Xianchao Li (1)
  Jinlong Ma (1)
  
  1. School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100080, China
  2. National Key Laboratory of Science and Technology on Materials under Shock and Impact, Beijing, 100081, China
  3. Inner Mongolia First Machinery Group Co., Ltd, Baotou, 014032, China
  
• ISSN：1993-0437

文摘

To investigate the transformation behavior of TRIP steel retained austenite under cyclic load, cyclic V-bending deformation of low carbon Si-Mn TRIP600 was studied by experiment and finite element in this paper. The results showed that, under cyclic V-bending deformation, retained austenite in TRIP steel transformed into martensite gradually with the increasing of bending times, and for the symmetrical characteristic, upper surface and lower surface presented the same transformation tendency. From the first to the fourth V-bending deformation, retained austenite volume fraction decreased nearly linearly and then attained saturation step by step. Compressive stress state was helpful for martensite transformation than tension stress state with V-bending deformation, and strain magnitude was the determining factor for retaining austenite martensitic transformation. With the increasing of bending times effective stress increased and the relationship between maximum effective stress and bending times was nearly linear. Effective stress and effective strain distribution were non-uniform, the maximum effective stress and effective strain were present in the center of the samples. The relationships between retained austenite and V-bending times, and retained austenite with effective strain were set up as Eqs.(1)-5). The relationship was typical quadric function, decreased linearly for the initial deformation and attained saturation finally.