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首页> 外文期刊>ISIJ international >Internal Reversible Hydrogen Embrittlement of Austenitic Stainless Steels Based on Type 316 at Low Temperatures
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Internal Reversible Hydrogen Embrittlement of Austenitic Stainless Steels Based on Type 316 at Low Temperatures

机译：316型奥氏体不锈钢在低温下的内部可逆氢脆性

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摘要

The internal reversible hydrogen embrittlement (IRHE) of austenitic Fe(10-20)Ni17Cr2Mo alloys based on type 316 stainless steels hydrogen-charged to around 40 mass ppm was investigated by performing tensile tests using the slow strain rate technique at temperatures from 80 to 300 K. The susceptibility to IRHE depended on the Ni content. IRHE occurred below a Ni content of 15% (Ni equivalent of 29%), increased with decreasing temperature, reached a maximum at 200 K and decreased with further decreas ing temperature. Hydrogen-induced fracture due to IRHE occurred in brittle transgranular mode associated with the strain-induced α' martensite structure at temperatures from 200 to 300 K and occurred simulta neously with fracture along the prior annealed-twin boundary at 200 and 250 K, then changed to dimple rupture mode due to hydrogen localization at 150 K. IRHE was controlled by the amount of strain-induced α’ martensite above 200 K, whereas it was controlled by hydrogen diffusion below 200 K.
机译：通过在80至300的温度下使用慢应变速率技术进行拉伸试验，研究了基于316型不锈钢充氢至40质量ppm的奥氏体Fe（10-20）Ni17Cr2Mo合金的内部可逆氢脆（IRHE） K.对IRHE的敏感性取决于Ni含量。镍含量低于15％（镍当量为29％）时，IRHE随温度降低而增加，在200 K时达到最大值，并随着温度的进一步降低而降低。 IRHE引起的氢致断裂以脆性的跨晶模式发生，与应变诱导的α'马氏体结构在200至300 K的温度下发生，并同时沿先前的退火双晶边界在200和250 K处发生断裂，然后发生变化由于氢在150 K处的局部化而进入酒窝破裂模式。IRHE由高于200 K的应变诱导α'马氏体的量控制，而由低于200 K的氢扩散控制。

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  • 来源
    《ISIJ international》 |2012年第2期|p.240-246|共7页
  • 作者

    Lin ZHANG; Masaaki IMADE; Bai AN; Mao WEN; Takashi IIJIMA; Seiji FUKUYAMA; Kiyoshi YOKOGAWA;

  • 作者单位

    Formerly National Institute of Advanced Industrial Science and Technology (AIST). Now at Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014 P. R. China;

    Formerly AIST. Passed away in 2010;

    AIST, 1-1-1 East, Tsukuba, Ibaraki, 305-8561 Japan;

    Formerly AIST. Now at Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai, 200240 P. R. China;

    AIST, 1-1-1 East, Tsukuba, Ibaraki, 305-8561 Japan;

    AIST, 1-1-1 East, Tsukuba, Ibaraki, 305-8561 Japan;

    AIST, 1-1-1 East, Tsukuba, Ibaraki, 305-8561 Japan;

  • 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

    stainless steel; hydrogen embrittlement; nickel; low temperature deformation; slow strain rate technique;

    机译：不锈钢;氢脆镍;低温变形;慢应变速率技术;

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