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首页> 外文期刊>JCT >The effect of hydrogen shielding gas on microstructure and abrasive wear behavior in the surface modification process using the tungsten inert gas method
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The effect of hydrogen shielding gas on microstructure and abrasive wear behavior in the surface modification process using the tungsten inert gas method

机译：氢保护气体对钨极惰性气体法表面改性过程中显微组织和磨料磨损行为的影响

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摘要

In this study, SAE 1020 steel surfaces were separately alloyed with preplaced high-carbon ferro-chromium (FeCr), ferro-molybdenum (FeMo), and ferro-titanium (FeTi) powders by using a tungsten inert gas (TIG) heat source. By using two different types of shielding gas compositions during the alloying process, the study investigated the effects of modified shielding gas composition on the microstructure, hardness, and abrasive wear resistance of specimens. It was observed that with modifications in shielding gas composition, the microstructure and volume hardness of the specimens changed and no cracks and voids were formed in the interface area. The X-ray examinations of the specimens identified Fe, FeTi, and FeMo phases in their microstructure as the first phase, and Cr_7C_3, Fe_3C, Fe_7C_3, and TiC phases as the second phase. As a result, it was concluded that changes in shielding gas composition in surface alloying process significantly affect specimens' microstructure and mechanical properties.
机译：在这项研究中，通过使用钨极惰性气体（TIG）热源，将SAE 1020钢表面分别与预先放置的高碳铬铁（FeCr），钼铁（FeMo）和钛铁（FeTi）粉末合金化。通过在合金化过程中使用两种不同类型的保护气体成分，该研究研究了改性保护气体成分对试样的显微组织，硬度和耐磨性的影响。观察到，随着保护气体组成的改变，样品的微观结构和体积硬度发生了变化，并且在界面区域中没有形成裂纹和空隙。样品的X射线检查将微观结构中的Fe，FeTi和FeMo相识别为第一相，将Cr_7C_3，Fe_3C，Fe_7C_3和TiC相识别为第二相。结果表明，表面合金化过程中保护气体成分的变化会显着影响试样的微观结构和力学性能。

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  • 来源
    《JCT》 |2011年第1期|p.97-105|共9页
  • 作者

    V. V. Cay; S. Ozan; M. S. Goek;

  • 作者单位

    Vocational School of Higher Education, Dicle University,Diyarbakir, Turkey;

    Department of Metallurgy, Faculty of Technical Education,University of Firat, Elazig, Turkey;

    Department of Metallurgical Engineering, Faculty of Engineering, Bartin University, Bartin, Turkey;

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

    coating; shielding gas; TIG; alloying; microstructure;

    机译：涂层;保护气体TIG;合金化微观结构;

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