辽宁石油化工大学学报 ›› 2009, Vol. 29 ›› Issue (3): 48-51.

• 化工机械 • 上一篇    下一篇

00MPa级超细晶粒钢焊接接头的低温韧性

郭魁文1,朱 健1,王秉新2*   

  1. 1.抚顺市特种设备监督检验所,辽宁抚顺113006;2.辽宁石油化工大学机械工程学院,辽宁抚顺113001
  • 收稿日期:2009-03-16 出版日期:2009-09-25 发布日期:2017-07-05
  • 作者简介:郭魁文(1954-),男,辽宁抚顺市,高级工程师

Low-Temperature Toughness for Weld Joint of 400 MPa Ultrafine Grained Steel Strip

GUO Kui-wen1, ZHU Jian1, WANG Bing-xin 2*   

  1. 1.Fushun Fspecial Equipment Supervision Test Institute, Fushun Liaoning113006,P.R. China;  2. School of Mechanical Engineering, Liaoning University of Petroleum & Chemical Technology, Fushun Liaoning 113001,P.R.China
  • Received:2009-03-16 Published:2009-09-25 Online:2017-07-05

摘要: 利用CO2+Ar气体保护焊,分别采用单道焊接和双道焊接工艺对厚度为8mm 的400MPa级超细晶
粒钢钢板进行了焊接,采用系列冲击试验方法对焊接接头的低温韧性进行了研究。试验结果表明,在焊接接头中,
焊逢位置低温韧性较差。由于双道焊较小的热输入,减小了焊缝及热影响区组织粗化,其焊接接头的低温韧性好于
单道焊,并使热影响区面积变小。

关键词: 超细晶粒钢 , 焊接 , 晶粒长大 , 韧脆转变温度

Abstract: The 400 MPa ultrafine grained steel strip with thickness of 8 mm was connected by CO2+Ar arc welding under single-pass welding and double-pass welding, and the low-temperature toughness for weld joints was investigated by series impact test. The experimental results show that the low-temperature toughness for weld is worse among the weld joint. The low-temperature toughness for weld joint by double-pass welding is better than that of single-pass welding, and its heat affected zone(HAZ) is decreased because smaller heat input reduces grain growth coarsening.

Key words: Ultrafine grained steel , Welding , Grain growth , Ductile-brittle transition temperature

引用本文

郭魁文,朱 健,王秉新. 00MPa级超细晶粒钢焊接接头的低温韧性[J]. 辽宁石油化工大学学报, 2009, 29(3): 48-51.

GUO Kui-wen, ZHU Jian, WANG Bing-xin. Low-Temperature Toughness for Weld Joint of 400 MPa Ultrafine Grained Steel Strip[J]. Journal of Liaoning Petrochemical University, 2009, 29(3): 48-51.

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