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首页> 外文会议>XV international conference on electron microscopy >The microstructure of weld overlay Ni-base alloy deposited on carbon steel by CMT method
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The microstructure of weld overlay Ni-base alloy deposited on carbon steel by CMT method

机译：CMT法沉积在碳钢上的堆焊Ni基合金的组织

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摘要

Ni-base alloys, like Inconel 625, exhibit a high temperature corrosion and oxidation resistance. For this reason, these alloys are typically used as a one of the most important coating material and can be applied in a different environments and elements of devices having various applications. In this work, Inconel 625 was deposited onto a carbon steel P235GH by Cold Metal Transfer method. Due to the segregation of Ni, Cr, Nb and Mo elements the Inconel 625 weld overlays cladded on boiler pipes P235GH obtained the dendritic structure, with the formation of a second phases at the end of solidification. The presence of γ (with high dislocation density), the Laves and (Nb,Ti)C phases was revealed by means of TEM examinations. The multipoint EDS analysis confirmed the presence of low Fe concentration in the Inconel 625 alloy coatings. The concentration profiles of Ni, Cr, Mo and Nb performed across the dendritic structure showed segregation of these elements.
机译：镍基合金（如Inconel 625）具有高温腐蚀和抗氧化性能。由于这个原因，这些合金通常用作最重要的涂层材料之一，并且可以在不同的环境和具有各种应用的设备元件中使用。在这项工作中，通过冷金属转移方法将Inconel 625沉积到碳钢P235GH上。由于Ni，Cr，Nb和Mo元素的偏析，覆盖在锅炉管道P235GH上的Inconel 625焊接堆焊层获得了树枝状结构，并在凝固结束时形成了第二相。通过TEM检查揭示了γ（高位错密度），Laves和（Nb，Ti）C相的存在。多点EDS分析证实了Inconel 625合金涂层中的铁含量较低。贯穿树枝状结构的Ni，Cr，Mo和Nb的浓度曲线显示这些元素的偏析。

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  • 来源
  • 会议地点 Krakow(PL)
  • 作者

    Monika Solecka; Paweł Petrzak; Agnieszka Radziszewska;

  • 作者单位

    AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Department of Surface Engineering Materials Characterization,Al. Mickiewicza 30, 30-059 Krakow, Poland;

    AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Department of Surface Engineering Materials Characterization,Al. Mickiewicza 30, 30-059 Krakow, Poland;

    AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Department of Surface Engineering Materials Characterization,Al. Mickiewicza 30, 30-059 Krakow, Poland;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    TEM; SEM; EDS; Inconel 625; cladding;

    机译：TEM;扫描电镜EDS；因科镍合金625;覆层;

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