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首页> 外文期刊>Materials Science and Engineering >The effects of Silicon and Copper on microstructures, tensile and Charpy properties of weld metals by refined X120 wire
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The effects of Silicon and Copper on microstructures, tensile and Charpy properties of weld metals by refined X120 wire

机译:硅和铜对精制X120焊丝对焊接金属的组织,拉伸和夏比性能的影响

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摘要

This paper analyzes the micro-mechanism of decrease of impact toughness with increasing Silicon and increasing Copper in weld metal of a low-alloy high-strength X120 steel. By comparing the microstructures, measuring the extending length of the fibrous crack, and calculating the local cleavage fracture stress σf, and then using the basic principles of the micro-mechanism of cleavage fracture, the essential causes of change of toughness in the weld metal of high-strength steel welded joints are revealed in this work.
机译:本文分析了低合金高强度X120钢焊接金属中冲击韧性随硅含量增加和铜含量增加而降低的微观机制。通过比较微观结构,测量纤维裂纹的延伸长度,并计算局部解理断裂应力σf,然后使用解理断裂的微观机理的基本原理,即焊缝金属韧性变化的根本原因这项工作揭示了高强度钢焊接接头。

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  • 来源
    《Materials Science and Engineering》 |2018年第7期|350-362|共13页
  • 作者单位

    State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology;

    State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology;

    State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology;

    State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology;

    Hobart Brothers Company, An ITW Welding Company;

    State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology;

    State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology;

    State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Materials Science and Engineering, Lanzhou University of Technology;

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

    Low-alloy high-strength X120 steel; Ductile-brittle transition temperature; Toughness; Microstructure; Cleavage fracture;

    机译:低合金高强度X120钢;脆性转变温度;韧性;显微组织;解理断裂;

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