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高强韧轨道交通用钢药芯焊丝的力学性能及组织分析

洪波, 张明华, 尹付成

洪波, 张明华, 尹付成. 高强韧轨道交通用钢药芯焊丝的力学性能及组织分析[J]. 焊接学报, 2017, 38(4): 67-71. DOI: 10.12073/j.hjxb.20170416
引用本文: 洪波, 张明华, 尹付成. 高强韧轨道交通用钢药芯焊丝的力学性能及组织分析[J]. 焊接学报, 2017, 38(4): 67-71. DOI: 10.12073/j.hjxb.20170416
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HONG Bo, ZHANG Minghua, YIN Fucheng. Analysis of mechanical properties and microstructure of flux-cored wire for railway transportation equipment steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 67-71. DOI: 10.12073/j.hjxb.20170416
Citation: HONG Bo, ZHANG Minghua, YIN Fucheng. Analysis of mechanical properties and microstructure of flux-cored wire for railway transportation equipment steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 67-71. DOI: 10.12073/j.hjxb.20170416
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高强韧轨道交通用钢药芯焊丝的力学性能及组织分析

  • 1.

    湘潭大学 机械工程学院, 湘潭 411105;焊接机器人及应用技术湖南省重点实验室, 湘潭 411105

  • 2.

    湘潭大学 材料科学与工程学院, 湘潭 411105

基金项目: 国家自然科学基金资助项目（51575468）

Analysis of mechanical properties and microstructure of flux-cored wire for railway transportation equipment steel

  • 1.

    School of Mechnical Engineering, Xiangtan University, Xiangtan 411105, China;Key Laboratory of Welding Robot and Application Technology of Hunan Province, Xiangtan 411105, China

  • 2.

    School of Material Science and Engineering, Xiangtan University, Xiangtan, 411105, China

摘要

    摘要
  • 摘要: 针对轨道交通装备用屈服强度为450 MPa级低合金高强钢研制了一种焊接工艺性能优良、具有高强韧性、良好抗疲劳性能的药芯焊丝，并对研制的药芯焊丝熔敷金属拉伸、低温冲击韧性和疲劳强度等力学性能及组织进行了分析.结果表明，研制的药芯焊丝成分设计合理，焊缝组织以针状铁素体和粒状贝氏体为主，晶粒细小，有效提高了焊缝的强韧性，使焊缝具有优良的低温韧性和疲劳性能.药芯焊丝熔敷金属的抗拉强度达到620 MPa，-40℃低温韧性夏比冲击吸收功为96 J，指定寿命为2×106次循环下的疲劳极限为354 MPa，分别是设计目标值的1.1倍、1.6倍和2.2倍，能够满足轨道交通装备用屈服强度为450 MPa级低合金高强钢的焊接需求.
    Abstract: Aiming at 450 MPa level low-alloy high-strength steel for railway transportation equipment, a flux-cored wire with excellent welding performance, high strength toughness and good fatigue resistance was developed. The tensile property, low-temperature impact toughness, fatigue strength and microstructure of flux-cored wire deposited metal were analyzed. The results indicate that the composition of flux-cored wire is designed reasonaby. The microstructures are mainly acicular ferrite and granular bainite.The grain size is fine. Therefore the strength toughness is effectively improved and the excellent low-temperature toughness and fatigue strength are obtained. The tensile strength, low-temperature impact toughness at-40 ℃ and fatigue strength of flux-cored wire deposited metal achieve 620 MPa,96 J and 354 MPa, which are 1.1,1.6 and 2.2 times of the target value of design respectively. The developed flux-cored wire can meet the welding requirement of 450 MPa level low-alloy high-strength steel for railway transportation equipment.
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    • 参考文献(11)
  • [1] 温东辉, 宋凤明, 钱余海, 等. 高韧性耐候钢厚板的开发[J]. 世界钢铁, 2009, 9(5): 7-10. Wen Donghui, Song Fengming, Qian Yuhai, et al. Development of weathering steel plates with high toughness[J]. World Iron & Steel, 2009, 9(5): 7-10.
    [2] 郭慧英, 张 宇, 王银柏, 等. 屈服强度450 MPa级新型耐候钢研制[J]. 钢铁, 2014, 49(11): 68-73. Guo Huiying, Zhang Yu, Wang Yinbai, et al. Development of a new weathering steel with yield strength of 450 MPa[J]. Iron & Steel, 2014, 49(11): 68-73.
    [3] 尹旭方, 许鸿吉, 赵雯雯. 铁路货车用高强度耐候钢Q450NQR1焊接工艺[J]. 大连交通大学学报, 2009, 30(5): 45-47. Yin Xufang, Xu Hongji, Zhao Wenwen. Welding process of high-strength weathering steel Q450NQR1 for railway vehicle[J]. Journal of Dalian Jiaotong University, 2009, 30(5): 45-47.
    [4] 路 浩, 邢立伟, 陈大军. 高速列车用耐候钢活性MAG焊接技术[J]. 焊接学报, 2013, 34(11): 105-108. Lu Hao, Xing Liwei, Chen Dajun.Research on A-MAG welding of weathering resistant steel[J]. Transactions of the China Welding Institution, 2013, 34(11): 105-108.
    [5] Liao M T, Chen W J. A comparison of gas metal arc welding with flux-cored wires and solid wires using shielding gas[J]. International Journal of Advanced Manufacturing Technology, 1999, 15(1): 49-53.
    [6] 何 实, 储继君, 齐万利. 中国焊接材料的发展现状与未来趋势[J]. 焊接, 2015(12): 1-5. He Shi, Chu Jijun, Qi Wanli. Development present situation and future trend of welding material in China[J]. Welding Joining, 2015(12): 1-5.
    [7] Qian Y H, Niu D, Xu J J. The influence of chromium content on the electrochemical behavior of weathering steels[J]. Corrosion Science, 2013, 71(6): 72-77.
    [8] Bhole S D, Nemade J B, Collins B L, et al. Effect of nickel and molybdenum additions on weld metal toughness in a submerged arc welded HSLA line-pipe steel[J]. Journal of Materials Processing Technology, 2006, 173(1): 92-100.
    [9] Beidokhti B, Koukabia H, Dolati A. Effect of titanium addition on the microstructure and inclusion formation in submerged arc welded HSLA pipeline steel[J]. Journal of Materials Processing Technology, 2009, 209(8): 4027-4035.
    [10] 徐祖泽. 新型微合金钢的焊接及其应用[M]. 北京: 清华大学出版社, 2013.
    [11] Díaz-Fuentes M, Iza-Mendia A, Gutiérrez I. Analysis of different acicular ferrite microstructures in low-carbon steels by electron backscattered diffraction.study of their toughness behavior l[J]. Metallurgical and Materials Transactions A, 2003, 34(11): 2505-2516.
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  • 收稿日期:  2016-12-18

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