Effects of welding heat input on microstructure and hardness in heat-affected zone of HQ130 steel

被引:13
|
作者
Sun, JS [1 ]
Wu, CS [1 ]
机构
[1] Shandong Univ Technol, Inst Mat Joining, Jinan 250061, Peoples R China
关键词
D O I
10.1088/0965-0393/9/1/303
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
There are two parts of the heat input in gas-metal are welding (GMAW): one is the are heat flux and the other is the heat content of filler metal droplets. This paper introduces a new mode of are heat flux density distribution on the deformed GMAW weldpool surface. A numerical model of fluid flow and temperature field in GMAW is established according to the new mode of are heat flux distribution. By using a numerical simulation technique, the effects of welding heat input on microstructure and hardness in HAZ of HQ130 steel are studied. The dimensions of Austenitic grains and hardness in different locations in HAZ of HQ130 steel are calculated under different welding heat inputs. Experiments show that the calculated results of welding thermal cycle and microstructure and hardness in HAZ of HQ130 steel are in agreement with measured ones.
引用
收藏
页码:25 / 36
页数:12
相关论文
共 50 条
  • [1] Fine structure in the inter-critical heat-affected zone of HQ130 super-high strength steel
    Li Yajiang
    Wang Juan
    Liu Peng
    [J]. Bulletin of Materials Science, 2003, 26 (2) : 273 - 278
  • [2] Fine structure in the inter-critical heat-affected zone of HQ130 super-high strength steel
    Li, YJ
    Juan, W
    Peng, L
    [J]. BULLETIN OF MATERIALS SCIENCE, 2003, 26 (02) : 273 - 278
  • [3] Effect of Mg Content on the Microstructure and Toughness of Heat-Affected Zone of Steel Plate after High Heat Input Welding
    Long-Yun Xu
    Jian Yang
    Rui-Zhi Wang
    Yu-Nan Wang
    Wan-Lin Wang
    [J]. Metallurgical and Materials Transactions A, 2016, 47 : 3354 - 3364
  • [4] Effect of Mg Content on the Microstructure and Toughness of Heat-Affected Zone of Steel Plate after High Heat Input Welding
    Xu, Long-Yun
    Yang, Jian
    Wang, Rui-Zhi
    Wang, Yu-Nan
    Wang, Wan-Lin
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2016, 47A (07): : 3354 - 3364
  • [5] HEAT-AFFECTED ZONE HARDNESS LIMITS FOR IN-SERVICE WELDING
    Bruce, William A.
    Etheridge, Bradley C.
    Carman, Andrew
    [J]. IPC2008: PROCEEDINGS OF THE ASME INTERNATIONAL PIPELINE CONFERENCE - 2008, VOL 3, 2009, : 1 - 9
  • [6] Influence of inclusions with Mg deoxidation on the microstructure in the heat-affected zone of steel plates after high-heat-input welding
    Xu, Long-Yun
    Yang, Jian
    Wang, Rui-Zhi
    [J]. Gongcheng Kexue Xuebao/Chinese Journal of Engineering, 2020, 42 : 9 - 13
  • [7] The Influence of the Second Phase on the Microstructure Evolution of the Welding Heat-Affected Zone of Q690 Steel with High Heat Input
    Qi, Huan
    Pang, Qihang
    Li, Weijuan
    Bian, Shouyuan
    [J]. MATERIALS, 2024, 17 (03)
  • [8] Microstructure and Fracture Characteristics of Heat-Affected Zone in Shipbuilding Steel Plates with Mg Deoxidation after High Heat Input Welding
    Pan, Xiaoqian
    Yang, Jian
    Zhang, Yinhui
    [J]. STEEL RESEARCH INTERNATIONAL, 2021, 92 (11)
  • [9] CALCULATION OF HARDNESS OF HEAT-AFFECTED ZONE
    LEBEDEV, BD
    DUKELSKAYA, OI
    DASHEVSKAYA, EA
    [J]. AUTOMATIC WELDING USSR, 1975, 28 (03): : 9 - 10
  • [10] A MICROPROCESSOR MODEL FOR THE HEAT-AFFECTED ZONE HARDNESS OF STEEL WELDS
    SHING, GY
    BIBBY, MJ
    GOLDAK, JA
    [J]. SAMPE QUARTERLY-SOCIETY FOR THE ADVANCEMENT OF MATERIAL AND PROCESS ENGINEERING, 1985, 16 (04): : 31 - 39