Microstructure evolution of CP titanium during deformation in KoBo process followed by cold rolling

被引:17
|
作者
Kawalko, J. [1 ]
Bobrowski, P. [1 ]
Koprowski, P. [1 ]
Jarzebska, A.
Bieda, M. [1 ]
Lagoda, M. [2 ]
Sztwiertnia, K. [1 ]
机构
[1] Polish Acad Sci, Inst Met & Mat Sci, Reymonta 25, PL-30059 Krakow, Poland
[2] AGH Univ Sci & Technol, Fac Nonferrous Met, A Mickiewicza 30, PL-30059 Krakow, Poland
关键词
Titanium; KoBo extrusion; Cold rolling; Deformation mechanisms; HIGH-PRESSURE TORSION; HEXAGONAL MATERIALS; AL-ZN; ALLOYS; METAL;
D O I
10.1016/j.jallcom.2016.11.202
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Evolution of microstructure and texture of commercial purity (CP) titanium grade 2 during two-step deformation process was investigated in this work. Deformation technique utilized in first step of samples preparation was the KoBo type extrusion. In the second step, further deformation was performed by the cold rolling process in order to facilitate high level of grain refinement. After the first step of deformation microstructure of titanium sample consists of equiaxed grains with no internal structure, but with distinct distribution of grain sizes. Texture of KoBo extruded Ti sample is typical with 0001 basal planes oriented parallel to the extrusion direction. During the cold rolling microstructure is significantly refined. Some grains are elongated in the rolling direction, however most of the microstructure is occupied by fine grains with close to equiaxed shape. Almost 50% of the microstructure consists of highly refined fraction of grains with diameter below one micrometer. Analysis of microstructure suggest that refined grains are produced due to dynamic recrystallization that occurs both during KoBo and during subsequent cold rolling in the fine grained areas of KoBo extruded sample. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:298 / 303
页数:6
相关论文
共 50 条
  • [1] Microstructure evolution of CP titanium during deformation in KoBo process followed by cold rolling
    Kawałko, J. (kuba.kawalko@gmail.com), 1600, Elsevier Ltd (707):
  • [2] Effect of deformation twinning on microstructure and texture evolution during cold rolling of CP-titanium
    Chun, YB
    Yu, SH
    Semiatin, SL
    Hwang, SK
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 398 (1-2): : 209 - 219
  • [3] Microstructure evolution in pure titanium during warm deformation by combined rolling processes
    Lopatin, N. V.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 556 : 704 - 715
  • [4] Evolution of Microstructure and Mechanical Properties of a Biomedical β Titanium Alloy during Cold Rolling
    Cui Wenfang
    Jin Lei
    Ma Yan
    Liu Chunming
    RARE METAL MATERIALS AND ENGINEERING, 2013, 42 (10) : 2034 - 2038
  • [5] Multiscales modeling of microstructure evolution during asymmetric cold rolling process
    M. Ould Ouali
    M. Aberkane
    International Journal of Material Forming, 2008, 1 : 89 - 92
  • [6] Multiscales modeling of microstructure evolution during asymmetric cold rolling process
    Ouali, M. Ould
    Aberkane, M.
    INTERNATIONAL JOURNAL OF MATERIAL FORMING, 2008, 1 (Suppl 1) : 89 - 92
  • [7] Microstructure and textural evolution during cold rolling and annealing of commercially pure titanium sheet
    Liu, Na
    Wang, Ying
    He, Wei-jun
    Li, Jun
    Chapuis, Adrien
    Luan, Bai-feng
    Liu, Qing
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2018, 28 (06) : 1123 - 1131
  • [8] Deformation Mechanism and Microstructure Evolution of TLM Titanium Alloy during Cold and Hot Compression
    Bai Xinfang
    Zhao Yongqing
    Zeng Weidong
    Zhang Yusheng
    Li Bo
    RARE METAL MATERIALS AND ENGINEERING, 2015, 44 (08) : 1827 - 1831
  • [9] Deformation mechanism and microstructure evolution of TLM titanium alloy during cold and hot compression
    Bai, Xinfang
    Zhao, Yongqing
    Zeng, Weidong
    Zhang, Yusheng
    Li, Bo
    Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 2015, 44 (08): : 1827 - 1831
  • [10] Deformation Texture Evolution in ARMCO Iron Sheets During Constrained Groove Pressing Followed by Cold Rolling
    Vindala Poojitha
    T. Raghu
    V. Pandurangadu
    Transactions of the Indian Institute of Metals, 2022, 75 : 47 - 56