高级检索

960高强度钢激光焊接接头的组织和腐蚀性能

李恒贺, 乔及森, 蒋小霞, 陈剑虹, 吴毅雄

李恒贺, 乔及森, 蒋小霞, 陈剑虹, 吴毅雄. 960高强度钢激光焊接接头的组织和腐蚀性能[J]. 焊接学报, 2015, 36(2): 75-78.
引用本文: 李恒贺, 乔及森, 蒋小霞, 陈剑虹, 吴毅雄. 960高强度钢激光焊接接头的组织和腐蚀性能[J]. 焊接学报, 2015, 36(2): 75-78.
shu
LI Henghe, QIAO Jisen, JIANG Xiaoxia, CHEN Jianhong, WU Yixiong. Microstructures and corrosion properties of laser welded joint of 960 high-strength steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(2): 75-78.
Citation: LI Henghe, QIAO Jisen, JIANG Xiaoxia, CHEN Jianhong, WU Yixiong. Microstructures and corrosion properties of laser welded joint of 960 high-strength steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(2): 75-78.
shu

960高强度钢激光焊接接头的组织和腐蚀性能

  • 1.

    兰州理工大学有色金属先进加工与再利用省部共建国家重点实验室, 兰州 730050

  • 2.

    上海交通大学上海市激光制造与材料改性重点实验室, 上海 201100

基金项目: 国家自然科学基金重点资助项目(51035004);甘肃省国际科技合作专项资助项目(144WCGA164)

Microstructures and corrosion properties of laser welded joint of 960 high-strength steel

  • 1.

    State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China

  • 2.

    Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University, Shanghai 201100, China

摘要

    摘要
  • 摘要: 针对960高强度钢激光焊接接头腐蚀性能开展分析,利用扫描电镜和光学电镜分析接头微观组织;利用动电位极化技术研究接头不同区域在模拟海水中的腐蚀行为;并通过恒载荷加载装置研究接头在模拟海水中的应力腐蚀行为.结果表明,960高强度钢腐蚀规律为均匀腐蚀到点蚀再到均匀腐蚀.电化学测试结果3个区域的腐蚀速率从大到小为焊缝,热影响区,母材,且随着腐蚀的继续进行腐蚀速率减慢.热影响区粗晶区成为接头的薄弱环节,拉伸试样均断裂在热影响区.应力腐蚀使拉伸试样抗拉强度降低12%,断裂形式由韧性断裂变为准解理断裂.
    Abstract: The corrosion property of 960 high-strength steel joint by high power laser welding was studied. The microstructure of the welded joint was analyzed by scanning electron microscope(SEM) and optical electron microscopy. The corrosion behavior of the welded joint was investigated by potentiodynamic polarization. Stress corrosion sensitivity of the welded joint was investigated in simulated seawater at constant load. The results show that the corrosion process of 960 high strength steel starts with uniform corrosion, then the corrosion products drops off and the uniform corrosion forms at last. The electrochemical corrosion results show that the corrosion rate increases from weld, HAZ to base metal, and it decreases gradually with longer corrosion time. The fracture occurs at the heat affected zone due to the coarse grain of this zone in tensile test. Stress corrosion resulted in that the tensile strength of specimens decreased by 12%, and the fracture mode changed from ductile fracture to quasi-cleavage fracture.
    • HTML全文
    • 参考文献(5)
  • [1] Jelovica J, Romanoff J, Ehlers S, et al. Ultimate strength of corroded web-core sandwich beams[J]. Marine Structures, 2013, 31(2):1-14.
    [2] 张俊旺,王文先,黄延平,等.奥氏体不锈钢焊缝金属的电化学腐蚀性能[J].焊接学报, 2007, 28(2):103-107. Zhang Junwang, Wang Wenxian, Huang Yanping, et al. Electrochemical corrosion properties for weld metal of austenitic stainless steel[J]. Transactions of the China Welding Institution, 2007, 28(2):103-107.
    [3] 黄毓晖,杨博,轩福贞,等. 316L不锈钢扩散焊接头在酸性氯化钠溶液中的应力腐蚀行为[J].焊接学报, 2011, 32(7):67-70. Huang Yuhui, Yang Bo, Xuan Fuzhen, et al. Stress corrosion behavior of diffusion bonding joints of 316L stainless steel in environment of acid NaCl solution[J]. Transactions of the China Welding Institution, 2011, 32(7):67-70.
    [4] 周贤良,李晖榕,华小珍,等. X80管线钢埋弧焊焊接接头的组织和腐蚀性能[J].焊接学报, 2011, 32(1):37-40. Zhou Xianliang, Li Huirong, Hua Xiaozhen, et al. Microstructures and corrosion properties of submerged arc welded joint for X80 pipeline steel[J]. Transactions of the China Welding Institution, 2011, 32(1):37-40.
    [5] 黄锦花,李自刚,钱余海,等.低合金耐海水腐蚀钢在模拟腐蚀环境下的耐蚀性能研究[J].上海金属, 2006, 28(4):6-9. Huang Jinhua, Li Zigang, Qian Yuhai, et al. Accelerated corrosion behavior of seawater corrosion resistant Q345C-NHY3 steel in artificial simulated environments[J]. Shanghai Metals, 2006, 28(4):6-9.
    • 相关文章
    • 施引文献(8)

  • 期刊类型引用(6)

    1. 白鼎甲，白秀琴，郭智威. 大型邮轮冷却水系统管道焊缝腐蚀行为研究. 船舶工程. 2023(09): 6-12+25 . 百度学术
    2. 蒋小霞，纪华，徐楠，张树玲，寇琳媛. 激光焊接Ⅰ型钢质三明治板的研究进展. 热加工工艺. 2019(09): 5-8+12 . 百度学术
    3. 黄磊，陈希章，马宏波，林涛. DP780镀锌钢激光焊接性能与工艺. 焊接学报. 2018(08): 55-58+131 . 本站查看
    4. 刘政军，武丹，苏允海. B元素对药芯焊丝焊缝金属针状铁素体形成的影响. 焊接学报. 2018(12): 19-24+130 . 本站查看
    5. 楼晓丹，李相波，程旭东，黄国胜，邢路阔. 10CrNi3MoV高强度结构钢焊接接头海水腐蚀行为研究. 热加工工艺. 2017(13): 99-104 . 百度学术
    6. 张飒，王攀，庄园. Weldox700E高强度钢焊接性探讨. 中国机械工程. 2016(13): 1815-1819 . 百度学术

    其他类型引用(2)

    • 资源附件(0)
计量
  • 文章访问数:  275
  • HTML全文浏览量:  11
  • PDF下载量:  107
  • 被引次数: 8
出版历程
  • 收稿日期:  2013-07-22

目录

摘要
HTML全文
    参考文献(5)
    相关文章
    施引文献(8)
    资源附件(0)

    /

    返回文章
    返回

    网站版权 © 焊接杂志社焊接学报编辑部电话：0451-86323218地址：哈尔滨市松北区创新路2077号

    本系统由 北京仁和汇智信息技术有限公司 开发  百度统计