High strength-high ductility combination in a low-density medium Mn steel prepared by a highly efficient route

被引:2
|
作者
Yu, Cansheng [1 ,2 ]
Sun, Lirong [2 ]
Xi, Han [2 ]
Liu, Yi [2 ]
Li, Yunjie [2 ]
Kang, Jian [2 ]
Wang, Hesong [2 ]
Chang, Zhiyuan [1 ]
机构
[1] State Key Lab Vanadium & Titanium Resources Compre, Panzhihua 617000, Peoples R China
[2] Northeastern Univ, State Key Lab Rolling & Automation, Shenyang 110819, Peoples R China
来源
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 28卷
关键词
Low-density medium Mn steel; Annealing time; Mn partitioning; Austenite reverted transformation; Tensile property; TRIP effect; MECHANICAL-PROPERTIES; MARTENSITE-TRANSFORMATION; RETAINED AUSTENITE; MICROSTRUCTURE; BEHAVIOR; STABILITY;
D O I
10.1016/j.jmrt.2023.12.020
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Medium Mn steels are the primary candidates in the fields of automobile, construction machinery et al. due to the advantages of high strength-ductility combination, and low costs. By now, the balance of good performance and high preparation efficiency is still a critical issue to be unsolved, which restricts their further applications. This work designs a novel Al-contained medium Mn low-density steel and explores the effect of a short intercriticalannealing process. The microstructure evolution of multi-scales, especially the austenite characteristics and Mn partitioning behaviors is analyzed, and the relationship between austenite and tensile properties is discussed. The results indicate Al can broaden the annealing processing window and improve the annealing temperature. When annealed at 780 degrees C, the austenite reverted transformation happens quickly and after annealing for 3 min, the austenite volume fraction maintains stable in the range of 52.4-56.7 vol%, but the morphology and Mn concentration are very different. A large amount of blocky austenite with a coarse size of more than 1 mu m and a low Mn concentration of 8-9 wt% forms at the longer annealing time of 20 min, while the austenite almost presents a lath-like shape with a high Mn concentration exceeding 10 wt% at annealing time of 4 min. The tensile properties are closely related to the volume fraction and mechanical stability of austenite, and the sample annealed for 4 min exhibited the best performance with tensile strength of 1192 MPa and total elongation of 33 %, due to its slow TRIP effect.
引用
收藏
页码:533 / 545
页数:13
相关论文
共 50 条
  • [41] Improvement of strength-ductility combination in ultra-high-strength medium-Mn Q&P steel by tailoring the characteristics of martensite/retained austenite constituents
    Li, Jiayu
    Xu, Yunbo
    Lu, Bing
    Yu, Yongmei
    Jing, Yi
    Sun, Weihua
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2022, 18 : 352 - 369
  • [42] High strength and ductility combination in nano-/ultrafine-grained medium-Mn steel by tuning the stability of reverted austenite involving intercritical annealing
    Jun Hu
    Jia-Mei Zhang
    Guo-Sheng Sun
    Lin-Xiu Du
    Yue Liu
    Ying Dong
    R. D. K. Misra
    Journal of Materials Science, 2019, 54 : 6565 - 6578
  • [43] High strength and ductility combination in nano-/ultrafine-grained medium-Mn steel by tuning the stability of reverted austenite involving intercritical annealing
    Hu, Jun
    Zhang, Jia-Mei
    Sun, Guo-Sheng
    Du, Lin-Xiu
    Liu, Yue
    Dong, Ying
    Misra, R. D. K.
    JOURNAL OF MATERIALS SCIENCE, 2019, 54 (08) : 6565 - 6578
  • [44] Mechanism of Balanced Strength and Ductility in High-Strength Low-Alloy Steel
    Zhu, Yuzhi
    Jia, Yunke
    Chen, Xiaohua
    Wang, Yanlin
    Wang, Zidong
    METALS, 2022, 12 (10)
  • [45] High strength-ductility combination by quenching and partitioning of a low carbon microalloyed dual-phase steel
    Singh, Alok Kumar
    Chouhan, Devesh Kumar
    Bhattacharya, Basudev
    Biswas, Somjeet
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2023, 870
  • [46] Development of High-Strength Low-Density Steel for Emerging Lightweight Electric Vehicle Technologies
    Kisku, Nicky
    Kisku, Twinkle
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2024, 34 (4) : 2917 - 2932
  • [47] Moderating strain hardening rate to produce high ductility and high strength in a medium carbon TRIP steel
    Dong, X. X.
    Shen, Y. F.
    Zhu, Y. T.
    MATERIALS RESEARCH LETTERS, 2023, 11 (01): : 69 - 75
  • [48] Hot Deformation Behaviors and Process Parameters Optimization of Low-Density High-Strength Fe–Mn–Al–C Alloy Steel
    Peng Wan
    Huixiang Yu
    Feng Li
    Pengfei Gao
    Lei Zhang
    Zhengzhi Zhao
    Metals and Materials International, 2022, 28 : 2498 - 2512
  • [49] A low-density polymer/CrMnFeCoNi composite with high strength and high damping capacity
    Jiang, Zhaohan
    Tan, Gongli
    Huang, Xiangyi
    Li, Teng
    Cai, Hanyu
    Li, Xiaojun
    Wang, Qiru
    Lv, Xinxin
    Gong, Shen
    COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2024, 181
  • [50] Development of novel low density ultra-high strength manganese-steel with significant ductility through thermo-mechanical processing route
    Kisku, Nicky
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2024, 901