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Microstructural analysis of friction stir welded ferritic stainless steel

机译：搅拌摩擦焊接铁素体不锈钢的显微组织分析

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摘要

High-quality, defect-free welds were successfully produced in 409 ferritic stainless steel by friction stir welding. A remarkably fine-grained microstructure was observed in the stir zone, and the fraction of low angle grain boundary in the stir zone significantly increased as compared to that in the base material. An increase in plunging depth led to an increase of the fraction of low angle grain boundary, a decrease in grain size, and an increase in hardness in the stir zone.
机译：通过搅拌摩擦焊接成功地在409铁素体不锈钢中生产了高质量，无缺陷的焊缝。在搅拌区观察到明显的细微组织，与基材相比，搅拌区的低角度晶界分数显着增加。切入深度的增加导致低角度晶界分数的增加，晶粒尺寸的减小以及搅拌区硬度的增加。

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  • 来源
    《Materials Science and Engineering》 |2011年第6期|p.2889-2894|共6页
  • 作者

    Hoon-Hwe Cho; Heung Nam Han; Sung-Tae Hong; Jong-Hwan Park; Yong-Jai Kwon; Seok-Hyun Kim; Russell J. Steel;

  • 作者单位

    Department of Materials Science & Engineering and Center for Iron &Steel Research. RIAM, Seoul National University. Seoul 151-744, South Korea;

    Department of Materials Science & Engineering and Center for Iron &Steel Research. RIAM, Seoul National University. Seoul 151-744, South Korea;

    School of Mechanical and Automotive Engineering, University ofUlsan. Ulsan 680-749, South Korea;

    School of Mechanical and Automotive Engineering, University ofUlsan. Ulsan 680-749, South Korea;

    School of Materials Science & Engineering. University of Ulsan. Ulsan 680-749. South Korea;

    Sejong Industry. Ulsan 683-360. South Korea;

    MegaStir Technologies. Provo. UT 84604. USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    ferritic stainless steel; friction stir welding; microstructure; plunging depth;

    机译：铁素体不锈钢搅拌摩擦焊;微观结构下降深度;

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