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首页> 外文期刊>Journal of Materials Research >Effects of austenitic and duplex electrodes on microstructure, mechanical properties, pitting, and galvanic corrosion resistance of ferritic and dual-phase stainless steel dissimilar joints
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Effects of austenitic and duplex electrodes on microstructure, mechanical properties, pitting, and galvanic corrosion resistance of ferritic and dual-phase stainless steel dissimilar joints

机译：奥氏体和双相电极对铁素体和双相不锈钢异种接头的组织，力学性能，点蚀和电偶腐蚀的影响

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摘要

In this work, examination of joint properties of ferritic and dual-phase stainless steel dissimilar welds was carried out by using E2209 duplex and E309LMo austenitic electrodes. The results of E2209 weld showed dual-phase microstructure of ferrite and austenite in the form of grain boundary austenite, Widmanstatten and intragranular austenite, whereas E309LMo weld showed acicular ferrite in the cores of subgrain of austenite. Electron backscatter diffraction was used to study the evolution of the microstructure and micro-texture. The significant variations in the feature of weldments illustrated the presence of a very strong texture. Ferritoscope measurement revealed higher ferrite content in the E2209 weld. Tensile strength, hardness, and absorbed energy of weld metal were dominated by E2209 weld. The modified Strauss test indicated intergranular corrosion attack in the AISI 430 ferritic side heat affected zone. Higher pitting resistance showed by E2209 weld than E309LMo weld. While higher galvanic corrosion observed in the E309LMo weld and AISI 430 ferritic base metal couple.
机译：在这项工作中，通过使用E2209双相和E309LMo奥氏体焊条对铁素体和双相不锈钢异种焊缝的接头性能进行了检查。 E2209焊缝的结果显示出铁素体和奥氏体的双相组织为晶界奥氏体，Widmanstatten和颗粒内奥氏体，而E309LMo焊缝在奥氏体亚晶核中显示出针状铁素体。电子背散射衍射用于研究组织和微观结构的演变。焊件特征的显着变化说明存在非常强的质感。铁素体镜测量显示E2209焊缝中的铁素体含量较高。焊接金属的拉伸强度，硬度和吸收能主要由E2209焊缝决定。修改后的Strauss试验表明，在AISI 430铁素体侧热影响区中发生了晶间腐蚀。 E2209焊缝比E309LMo焊缝具有更高的抗点蚀性。在E309LMo焊缝和AISI 430铁素体贱金属对中观察到较高的电化腐蚀。

著录项

  • 来源
    《Journal of Materials Research》 |2017年第16期|3066-3077|共12页
  • 作者

    Verma Jagesvar; Taiwade Ravindra Vasantrao; Sonkusare Reshma;

  • 作者单位

    Department of Metallurgical and Materials Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur, Maharashtra, India;

    Department of Metallurgical and Materials Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur, Maharashtra, India;

    Department of Materials Science and Engineering, Indian Institute of Technology (IIT) Kanpur, Kanpur, India;

  • 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

    dual-phase stainless steel; electron backscatter diffraction; ferritic stainless steel;

    机译：双相不锈钢;电子背散射衍射;铁素体不锈钢;

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