Development of ultra-fine grained dual phase microalloyed steels through severe cold rolling and intercritical annealing

被引：0
|
作者：
Papa Rao Mondi
V. Subramanya Sarma
S. Sankaran
机构：
[1] Indian Institute of Technology Madras,Department of Metallurgical & Materials Engineering
来源：
Transactions of the Indian Institute of Metals | 2011年 / 64卷
关键词：
microalloyed steel; ultra-fine grains; cold rolling and annealing; dual phase steels;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A Nb-microalloyed structural steel with ferrite-pearlite microstructure was subjected to cold rolling and intercritical annealing to produce ultra-fine grained dual phase microstructure. Optical and transmission electron microscopy techniques were employed to characterise the microstructure. Initial results showed that the intercritical annealing (at 790°C for 90s) of samples rolled to a true strain of 2.4 resulted in a significant grain refinement from the average initial grain size of 20 μm to 1–2 microns. The microstructure primarily consisted of UFG ferrite matrix with homogeneously distributed islands of plate martensite with volume fraction of 27%.
引用
收藏
相关论文
共 50 条
  • [1] Development of ultra-fine grained dual phase microalloyed steels through severe cold rolling and intercritical annealing
    Mondi, Papa Rao
    Sarma, V. Subramanya
    Sankaran, S.
    TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 2011, 64 (1-2) : 89 - 92
  • [2] Evolution of texture in ultra-fine grained ferrite through warm-rolling and intercritical annealing
    Chowdhury, Sandip Ghosh
    Mahato, B.
    da Silva, Hezio Rosa
    Lourenco, Gustavo Goncalves
    Santos, Dagoberto Brandao
    NANOMATERIALS BY SEVERE PLASTIC DEFORMATION IV, PTS 1 AND 2, 2008, 584-586 : 610 - 616
  • [3] Microstructure and Mechanical Properties of V-Nb Microalloyed Ultrafine-Grained Dual-Phase Steels Processed Through Severe Cold Rolling and Intercritical Annealing
    M. Papa Rao
    V. Subramanya Sarma
    S. Sankaran
    Metallurgical and Materials Transactions A, 2017, 48 : 1176 - 1188
  • [4] Microstructure and Mechanical Properties of V-Nb Microalloyed Ultrafine-Grained Dual-Phase Steels Processed Through Severe Cold Rolling and Intercritical Annealing
    Rao, M. Papa
    Sarma, V. Subramanya
    Sankaran, S.
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2017, 48A (03): : 1176 - 1188
  • [5] Structure-properties relationship of ultra-fine grained V-microalloyed dual phase steels
    Scott, C. P.
    Fazeli, F.
    Amirkhiz, B. Shalchi
    Pushkareva, I.
    Allain, S. Y. P.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 703 : 293 - 303
  • [6] Fine-grained dual-phase steels fabricated via cold-rolling ferrite-martensite structure and subsequent intercritical annealing
    Deng, Y. G.
    Yang, Y. P.
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 27 : 3881 - 3886
  • [7] The effect of Nb on texture evolutions of the ultrafine-grained dual-phase steels fabricated by cold rolling and intercritical annealing
    Kalashami, A. Ghatei
    Kermanpur, A.
    Ghassemali, E.
    Najafizadeh, A.
    Mazaheri, Y.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 694 : 1026 - 1035
  • [8] Fine-grained dual phase steel via intercritical annealing of cold-rolled martensite
    Alibeyki, Mohammad
    Mirzadeh, Hamed
    Najafi, Mostafa
    VACUUM, 2018, 155 : 147 - 152
  • [9] Ultra-fine (α+θ) duplex structure formed by cold rolling and annealing of pearlite
    Furuhara, T
    Mizoguchi, T
    Maki, T
    ISIJ INTERNATIONAL, 2005, 45 (03) : 392 - 398
  • [10] Fine tuning the mechanical properties of dual phase steel via thermomechanical processing of cold rolling and intercritical annealing
    Nikkhah, Sheida
    Mirzadeh, Hamed
    Zamani, Mehran
    MATERIALS CHEMISTRY AND PHYSICS, 2019, 230 : 1 - 8
12345