碳对C-1.5Mn-2.5Ni-0.5Cr-0.5Mo高强钢焊缝金属组织和性能的影响

被引:5
|
作者
齐彦昌
彭云
魏金山
田志凌
机构
[1] 钢铁研究总院先进钢铁流程及材料国家重点实验室
关键词
碳; 偏析; 组织; 性能;
D O I
暂无
中图分类号
TG457.11 [钢];
学科分类号
摘要
利用金相显微镜、扫描电子显微镜及附带EDS系统和透射电子显微镜研究了碳对C-1.5Mn-2.5Ni-0.5Cr-0.5Mo高强钢焊缝金属组织和性能的影响.结果表明,随着C元素含量的提高,焊缝金属的主要组织由针状铁素体转变为板条马氏体,同时使马氏体板条更加细小.在焊缝金属溶液凝固过程中Mn,Ni元素发生偏析,导致原δ-铁素体柱状晶晶界附近Mn,Ni元素含量高于柱状晶心部,并且随着C元素含量增加Mn,Ni元素的偏析加重.另外,随着C元素含量的增加焊缝金属的强度和硬度增高,并且原δ-铁素体柱状晶界附近与柱状晶心部硬度差值也越来越大.
引用
收藏
页码:41 / 44+115 +115
页数:5
相关论文
共 8 条
  • [1] 碳对超低碳船体钢熔敷金属冲击韧性的影响
    李振荣
    陈斌
    张俊旭
    王明林
    [J]. 材料开发与应用, 2005, (01) : 23 - 26+46
  • [2] 钢的热处理工艺设计经验公式
    黄春峰
    [J]. 航空制造技术, 2000, (04) : 53 - 55
  • [3] Micromechanisms of cleavage fracture initiation from inclusions in ferritic welds[J] . W.W. Bose Filho,A.L.M. Carvalho,P. Bowen.Materials Science & Engineering A . 2007
  • [4] Influence of carbon, manganese and nickel on microstructure and properties of strong steel weld metals: Part 3 – Increased strength resulting from carbon additions[J] . Keehan,Karlsson,Andrén,Bhadeshia.Science and Technology of Welding and Joining . 2006 (1)
  • [5] Influence of Mo content on microstructure and mechanical properties of high strength pipeline steel
    Kong, JH
    Zhen, L
    Guo, B
    Li, PH
    Wang, AH
    Xie, CS
    [J]. MATERIALS & DESIGN, 2004, 25 (08) : 723 - 728
  • [6] Weldability of X100 linepipe
    Thewlis, G
    [J]. SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2000, 5 (06) : 365 - 377
  • [7] Microstructural changes in HSLA-100 steel thermally cycled to simulate the heat-affected zone during welding
    Spanos, G
    Fonda, RW
    Vandermeer, RA
    Matuszeski, A
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (12): : 3277 - 3293
  • [8] Microstructure and high strength–toughness combination of a new 700 MPa Nb-microalloyed pipeline steel .2 Shanmugam S,Ramisetti N K,Misra R D K,et al. Materials Science and Engineering A . 2008