• 中国核心期刊(遴选)数据库收录期刊
  • 中国科技论文统计源期刊
  • 中国学术期刊综合评价数据库来源期刊
Advanced Search
SONG Chengli, WANG Fushan, FENG Quan, FAN Lei, BAI Zhenquan, FANG Yan. Effect of Acid Pickling and Passivation Treatment on Circumferential Weld Corrosion Resistance of 316L/L415 Mechanically Bimetallic Composite Pipe[J]. Corrosion & Protection, 2020, 41(11): 56-60. DOI: 10.11973/fsyfh-202011009
Citation: SONG Chengli, WANG Fushan, FENG Quan, FAN Lei, BAI Zhenquan, FANG Yan. Effect of Acid Pickling and Passivation Treatment on Circumferential Weld Corrosion Resistance of 316L/L415 Mechanically Bimetallic Composite Pipe[J]. Corrosion & Protection, 2020, 41(11): 56-60. DOI: 10.11973/fsyfh-202011009

Effect of Acid Pickling and Passivation Treatment on Circumferential Weld Corrosion Resistance of 316L/L415 Mechanically Bimetallic Composite Pipe

More Information
  • Received Date: March 14, 2019
  • Aiming at the problem of corrosion and leakage in the circumferential weld of 316L/L415 bimetal mechanical composite pipe, a pickling passivation solution (25% HNO3+5% HF+70% H2O) was prepared for pickling passivation (PP) treatment. Corrosion resistance of the welded samples before and after pickling passivation was compared using morphology observation, electrochemical test, and pitting corrosion test. The results showed that the surface of the sample after PP teratment became smooth, bright and clean. After PP teratment, the content of corrosion resistance elements Cr and Ni on the surface of the weld and heat-affected zone specimens increased significantly, but the content of Cr and Ni of the base metal changed little, the self-corrosion potential of base metal, weld and heat-affected zone samples all shifted positively, and the corrosion rate lowered. PP treatment could generate a new and denser passivation film on the surface of the girth weld, which significantly improved the corrosion resistance of the girth weld of the 316L/L415 composite pipe.
  • [1]
    肖雯雯,宋成立,白真权,等. 油田地面集输管道腐蚀穿孔风险分析[J]. 油气田地面工程,2017,36(4):81-85.
    [2]
    叶帆,高秋英. 凝析气田单井集输管道内腐蚀特征及防腐技术[J]. 天然气工业,2010,30(4):96-101.
    [3]
    李雪,朱庆杰,周宁,等. 油气管道腐蚀与防护研究进展[J]. 表面技术,2017,46(12):206-217.
    [4]
    李发根,魏斌,邵晓东,等. 双金属复合管技术经济性分析[J]. 腐蚀科学与防护技术,2011,23(1):86-88.
    [5]
    FU A Q,KUANG X R,HAN Y,et al. Failure analysis of girth weld cracking of mechanically lined pipe used in gasfield gathering system[J]. Engineering Failure Analysis,2016,68:64-75.
    [6]
    张立君,张燕飞,郭崇晓. 2205双相不锈钢双金属复合管焊接工艺研究[J]. 焊管,2009,32(4):30-34.
    [7]
    赵为民. 金属复合管生产技术综述[J]. 焊管,2003,26(3):10-14.
    [8]
    曾德智,杜清松,谷坛,等. 双金属复合管防腐技术研究进展[J]. 油气田地面工程,2008,27(12):64-65.
    [9]
    丁晗,李先明,安超,等. L245/316L双金属复合管的失效分析[J]. 腐蚀与防护,2018,39(2):157-162.
    [10]
    李磊,邝献任,姬蕊,等. 某油田316L/L360NB机械式双金属复合管失效行为及原因分析[J]. 表面技术,2018,47(6):224-231.
    [11]
    王玲玲,丁毅,马立群,等. 316L不锈钢酸洗工艺及耐点蚀性能研究[J]. 压力容器,2006,23(8):21-23.
    [12]
    夏浩,周栋,丁毅,等. 304不锈钢环保型酸洗钝化工艺及其性能研究[J]. 表面技术,2009,38(4):47-49.
    [13]
    GENG S N,SUN J S,GUO L Y. Effect of sandblasting and subsequent acid pickling and passivation on the microstructure and corrosion behavior of 316L stainless steel[J]. Materials & Design,2015,88:1-7.
    [14]
    应红,李岩,刘飞华,等. 不锈钢现场钝化技术[J]. 材料保护,2014,47(12):11-12.
    [15]
    WALLINDER D,PANA J,LEYGRAF& A C,et al. Electrochemical investigation of pickled and polished 304L stainless steel tubes[J]. Corrosion Science,2000,42:1457-1469.

Catalog

    Article views (3) PDF downloads (4) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return