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首页> 外文期刊>International journal of hydrogen energy >Hydrogen trapping and hydrogen induced cracking of welded X100 pipeline steel in H_2S environments
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Hydrogen trapping and hydrogen induced cracking of welded X100 pipeline steel in H_2S environments

机译：H_2S环境下X100管线钢焊接时的氢捕获和氢致裂纹

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摘要

Hydrogen induced cracking (HIC) susceptibility of the welded X100 pipeline steel was evaluated in NACE "A" solution at room temperature according to the NACE TM0284-2011 standard. Both the kinetic parameters of the permeability (J(infinity)L), the apparent diffusivity (D-app) and the concentration of reversible and irreversible hydrogen in the base metal and welded joint of X100 pipeline steel were quantitatively investigated by hydrogen permeation test. The results showed that the welded joint with an inhomogeneous microstructure had a higher trap density and more susceptible to HIC due to two orders of magnitude larger in the concentration of irreversible hydrogen than that of base metal, though all presenting poor HIC resistance for both base metal and the welded joint. The HIC cracks initiated from the inclusions enriching in Al, Ca, Si, Mn. The cracks are primarily trans granular, accompanying with limited intergranular ones. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译：根据NACE TM0284-2011标准，在室温下在NACE“ A”溶液中评估了焊接的X100管线钢的氢致开裂（HIC）敏感性。通过氢渗透试验定量研究了X100管线钢的母材和焊接接头中的渗透率（J（infinity）L），表观扩散率（D-app）以及可逆和不可逆氢浓度的动力学参数。结果表明，具有不均匀显微组织的焊接接头具有较高的陷阱密度，并且由于不可逆氢的浓度比母材高两个数量级，因此对HIC的敏感性更高，尽管这两种母材均表现出较差的HIC耐受性和焊接接头。 HIC裂纹是由富含Al，Ca，Si，Mn的夹杂物引起的。裂纹主要是反晶的，伴有有限的晶间裂纹。 （C）2017氢能出版物有限公司。由Elsevier Ltd.出版。保留所有权利。

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  • 来源
    《International journal of hydrogen energy》 |2018年第4期|2293-2306|共14页
  • 作者

    Gan Lijun; Huang Feng; Zhao Xiaoyu; Liu J.; Cheng Y. Frank;

  • 作者单位

    Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China;

    Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China;

    Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China;

    Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China;

    Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    X100 pipeline steel; The welded joint; Hydrogen induced cracking; Hydrogen trapping; Hydrogen concentration;

    机译：X100管线钢;焊接接头;氢致裂纹;氢俘获;氢浓度;

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