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首页> 外文期刊>ISIJ international >The Effect of S and Mn on the High-temperature Oxidation and Scale Spallation Behavior of Low-carbon Steels
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The Effect of S and Mn on the High-temperature Oxidation and Scale Spallation Behavior of Low-carbon Steels

机译：硫和锰对低碳钢高温氧化和水垢剥落行为的影响

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摘要

Early-stage oxidation behavior in air of low-carbon steels with and without S and Mn additions was investigated in terms of oxidation kinetics and scale spallation in a temperature range of 900 to 1 150℃. S and Mn did not appear to affect the growth rate of oxide scales within the given oxidation time, ～30 min, however it was found that S significantly enhanced oxide scale spallation. Scale spallation occurred only on the S doped steels oxidized at temperatures more than 1 000℃ when the thickness of oxide scale exceeded about 120 μm. This scale spallation was confirmed to occur during cooling after the given oxidation time. GD-OES analysis revealed that a significant amount of S enrichment occurred at the oxide/steel interface, which was around 1 mass% on 100 ppm S steel after 120 s of oxidation at 1 150℃. Such sulfur enrichment was speculated to be due to accumulation of rejected S from surface recession during the high-temperature oxidation. Observation of the steel surface after complete removal of the oxide scale by quenching the steels into liquid nitrogen clearly indicates the formation of eutectic Fe-FeS structure at scale/steel interface, resulting from a liquid phase formation above 1 000℃. Formation of sulfide, and therefore a liquid phase at higher temperature, greatly affected oxide scale spallation.
机译：根据900℃至1 150℃温度范围内的氧化动力学和鳞片剥落，研究了添加和不添加硫和锰的低碳钢在空气中的早期氧化行为。在给定的氧化时间（约30分钟）内，S和Mn似乎对氧化皮的生长速率没有影响，但是发现S显着增强了氧化皮的剥落。当氧化皮厚度超过120μm时，只有在温度超过1000℃时被氧化的S掺杂钢才会发生氧化皮剥落。在给定的氧化时间后的冷却过程中确认发生了这种鳞片剥落。 GD-OES分析表明，在1150℃氧化120 s后，在氧化物/钢界面上大量硫富集，在100 ppm S钢上约为1质量％。据推测，这种硫的富集是由于高温氧化过程中由于表面凹陷而产生的不合格的S的积累。通过将钢淬冷至液氮中而完全除去氧化物水垢后观察钢表面，清楚地表明在1000℃以上的液相形成是在水垢/钢界面处形成了共晶Fe-FeS结构。硫化物的形成以及因此在较高温度下的液相极大地影响了氧化皮的剥落。

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  • 来源
    《ISIJ international》 |2009年第12期|1938-1944|共7页
  • 作者

    SHIGENARI HAYASHI; TAKESHI SEKIMOTO; KAZUHIKO HONDA; TAKESHI KINOSHITA; KAZUAKI TANAKA; KOHSAKU USHIODA; TOSHIO NARITA; SHIGEHARU UKAI;

  • 作者单位

    Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University, N13, W8, Kitaku,Sapporo 060-8628 Japan;

    Sumitomo Metal Industries, Ltd., Kashima Steel Works, 3, Hikari, Kashima 314-0014 Japan;

    Kimitsu R&D Lab., Technical Development Bureau, Nippon Steel Corp., Kimitsu 299-1141 Japan;

    Kimitsu Works, Nippon Steel Corp., Kimitsu 299-1141 Japan;

    Kimitsu Works, Nippon Steel Corp., Kimitsu 299-1141 Japan;

    Technical Development Bureau, Nippon Steel Corp.,Futtsu 293-8511 Japan;

    Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University, N13, W8, Kitaku,Sapporo 060-8628 Japan;

    Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University, N13, W8, Kitaku,Sapporo 060-8628 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

    S effect; hot-rolled steel; scale spallation; Fe-FeS eutectic reaction;

    机译：S效果;热轧钢;规模剥落;Fe-FeS共晶反应;

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