Bending deformation and fracture characterisation in quenching and partitioning steel

被引：2
作者：
Yang, Yong-Gang [1 ]
Mi, Zhen-Li [1 ]
Xu, Mei [1 ]
Jiang, Hai-Tao [1 ]
Xiu, Qi [1 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Engn Technol, Beijing, Peoples R China
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2018年 / 34卷 / 11期
关键词：
Quenching and partitioning steel; bending; fracture characterisation; phase transformation; finite element analysis; MECHANICAL-PROPERTIES; RETAINED AUSTENITE; LATH MARTENSITE; P STEEL; VARIANT SELECTION; CARBON-STEEL; TRANSFORMATION; MICROSTRUCTURE; MODEL; CRYSTALLOGRAPHY;
D O I：
10.1080/02670836.2018.1457289
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The bending deformation recorded and fracture characterisation seen during the process of quenching and partitioning (Q&P) steel are investigated as a function of bending angle. According to experimental results, the mechanically induced martensitic transformation of the retained austenite occurred heterogeneously in the direction of thickness. Results from electron backscattered diffraction and finite element analysis confirmed that the heterogeneous phase transformation was caused by the stress difference in the direction of thickness. The results prove fracture behaviour is dominated by martensite cracking. The results provide a new insight into deformation characterisation of the Q&P steel under bending, which allows the design and optimisation of mechanical properties.
引用
收藏
页码：1379 / 1387
页数：9
相关论文
共 38 条
[1]   A new model of metal plasticity and fracture with pressure and Lode dependence [J].
Bai, Yuanli ;
Wierzbicki, Tomasz .
INTERNATIONAL JOURNAL OF PLASTICITY, 2008, 24 (06) :1071-1096
[2]   Determining individual phase properties in a multi-phase Q&P steel using multi-scale indentation tests [J].
Cheng, G. ;
Choi, K. S. ;
Hu, X. ;
Sun, X. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 652 :384-395
[3]   Near-Ac3 austenitized ultra-fine-grained quenching and partitioning (Q&P) steel [J].
Cho, Lawrence ;
Seo, Eun Jung ;
De Cooman, Bruno C. .
SCRIPTA MATERIALIA, 2016, 123 :69-72
[4]   Influence of carbon partitioning kinetics on final austenite fraction during quenching and partitioning [J].
Clarke, A. J. ;
Speer, J. G. ;
Matlock, D. K. ;
Rizzo, F. C. ;
Edmonds, D. V. ;
Santofimia, M. J. .
SCRIPTA MATERIALIA, 2009, 61 (02) :149-152
[5]   Quench and partitioning steel: a new AHSS concept for automotive anti-intrusion applications [J].
De Cooman, Bruno C. ;
Speer, John G. .
STEEL RESEARCH INTERNATIONAL, 2006, 77 (9-10) :634-640
[6]   Combined Intercritical Annealing and Q&P Processing of Medium Mn Steel [J].
De Cooman, Bruno C. ;
Lee, Seon Jong ;
Shin, Sunmi ;
Seo, Eun Jung ;
Speer, John G. .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2017, 48A (01) :39-45
[7]   A model for deformation behavior and mechanically induced martensitic transformation of metastable austenitic steel [J].
Han, HN ;
Lee, CG ;
Oh, CS ;
Lee, TH ;
Kim, SJ .
ACTA MATERIALIA, 2004, 52 (17) :5203-5214
[8]   Investigation on micromechanism and stress state effects on cleavage fracture of ferritic-pearlitic steel at-196 °C [J].
He, Jinshan ;
Lian, Junhe ;
Golisch, Georg ;
He, An ;
Di, Yidu ;
Muensterman, Sebastian .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 686 :134-141
[9]   In situ monitoring the properties of 20 carbon steel and ductile iron under combined tension and three-point bending loadings [J].
Hou, Pengliang ;
Zhou, Hai ;
Wang, Fuyuan ;
Xu, Tongtong ;
Li, Cong ;
Zhu, Bo ;
Sun, Xingdong ;
Zhao, Hongwei .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 713 :204-211
[10]   Novel method for refinement of retained austenite in micro/nano-structured bainitic steels [J].
Hu, F. ;
Wu, K. M. ;
Wan, X. L. ;
Rodionova, I. ;
Shirzadi, A. A. ;
Zhang, F. C. .
MATERIALS SCIENCE AND TECHNOLOGY, 2017, 33 (11) :1360-1365
1234