Effect of hot stamping parameters on the mechanical properties and microstructure of cold-rolled 22MnB5 steel strips

被引：38
作者：
Zhou, Jing [1 ]
Wang, Bao-yu [1 ]
Huang, Ming-dong [1 ]
Cui, Dong [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS | 2014年 / 21卷 / 06期
关键词：
boron steel; strip metal; stamping; mechanical properties; microstructure; phase transitions; HIGH-STRENGTH STEEL; BORON STEEL; PHASE-TRANSFORMATION; DEFORMATION; MARTENSITE; BEHAVIOR; AUSTENITE; ALLOY;
D O I：
10.1007/s12613-014-0940-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thermomechanical experiments were carried out to reproduce the hot stamping process and to investigate the effects of process parameters on the microstructure and mechanical properties of stamped parts. The process parameters, such as austenitizing temperature, soaking time, initial deformation temperature and cooling rate, are studied. The resulting microstructures of specimens were observed and analyzed. To evaluate the mechanical properties of specimens, tensile and hardness tests were also performed at room temperature. The optimum parameters to achieve the highest tensile strength and the desired microstructure were acquired by comparing and analyzing the results. It is indicated that hot deformation changes the transformation characteristics of 22MnB5 steel. Austenite deformation promotes the austenite-to-ferrite transformation and elevates the critical cooling rate to induce a fully martensitic transformation.
引用
收藏
页码：544 / 555
页数：12
相关论文
共 28 条
  • [1] Experimental and theoretical study of thermal aspects of the hot stamping process
    Abdulhay, B.
    Bourouga, B.
    Dessain, C.
    [J]. APPLIED THERMAL ENGINEERING, 2011, 31 (05) : 674 - 685
  • [2] Akerstrom P, 2006, THERMOMECHANICAL SHE, P1
  • [3] Friction behavior of aluminum-coated 22MnB5 in hot stamping under dry and lubricated conditions
    Azushima, A.
    Uda, K.
    Yanagida, A.
    [J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2012, 212 (05) : 1014 - 1021
  • [4] Testing formability in the hot stamping of HSS
    Bariani, P. F.
    Bruschi, S.
    Ghiotti, A.
    Turetta, A.
    [J]. CIRP ANNALS-MANUFACTURING TECHNOLOGY, 2008, 57 (01) : 265 - 268
  • [5] Experimental investigation of the tribological behavior and wear mechanisms of tool steel grades in hot stamping of a high-strength boron steel
    Boher, C.
    Le Roux, S.
    Penazzi, L.
    Dessain, C.
    [J]. WEAR, 2012, 294 : 286 - 295
  • [6] Predictions of the Mechanical Properties and Microstructure Evolution of High Strength Steel in Hot Stamping
    Cui, Junjia
    Lei, Chengxi
    Xing, Zhongwen
    Li, Chunfeng
    Ma, Shumei
    [J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2012, 21 (11) : 2244 - 2254
  • [7] Fan DW, 2009, STEEL RES INT, V80, P241
  • [8] Güler H, 2012, MATER TEST, V54, P619
  • [9] A review on hot stamping
    Karbasian, H.
    Tekkaya, A. E.
    [J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2010, 210 (15) : 2103 - 2118
  • [10] Prediction of Forming Limit Diagrams for 22MnB5 in Hot Stamping Process
    Li, Hongzhou
    Wu, Xin
    Li, Guangyao
    [J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2013, 22 (08) : 2131 - 2140
123