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首页> 外文期刊>High temperature materials and processes >The Effects of Carbon Content on the Microstructure and 650℃ Tensile Properties of Incoloy 901 Superalloy
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The Effects of Carbon Content on the Microstructure and 650℃ Tensile Properties of Incoloy 901 Superalloy

机译：碳含量对Incoloy 901高温合金组织和650℃拉伸性能的影响

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摘要

The microstructure and tensile properties of Incoloy 901 superalloy with various contents of carbon (0.02-0.09 wt%) were studied and a proper amount of carbon was determined to achieve good tensile properties at 650℃. The alloys were produced by vacuum induction melting and electro-slag refining (VIM + ESR) process and then they were hot rolled. After heat treatment, micro-structures and 650℃ tensile properties of specimens were investigated. Phase analysis with X-ray diffraction (XRD) indicated that Incoloy 901 contained Metallic carbides (MC)-type carbide enriched with Ti and Mo. With increasing carbon content from 0.02 to 0.09 wt%, carbide area fraction increased from 0.73% to 1.2%. Also, increasing of carbon content gave rise to higher amounts of carbide sizes. Using XRD patterns, the lattice parameters of γ and γ′ phases were determined and the results showed that, with increase of carbon content, the lattice parameters of γ and γ′ phases decreased and the mismatch between them increased from 0.119% for alloy containing 0.02 wt% to 0.167% for alloy containing 0.09 wt% C. The maximum strength of the alloy was obtained at 0.05 wt% carbon and ductility decreased slightly with increasing carbon.
机译：研究了不同碳含量（0.02-0.09 wt％）的Incoloy 901高温合金的显微组织和拉伸性能，并确定了适量的碳以在650℃下获得良好的拉伸性能。通过真空感应熔炼和电渣精炼（VIM + ESR）工艺生产合金，然后将其热轧。热处理后，研究了试样的显微组织和650℃拉伸性能。通过X射线衍射（XRD）进行的相分析表明，Incoloy 901含有富含Ti和Mo的金属碳化物（MC）型碳化物。随着碳含量从0.02 wt％增加到0.09 wt％，碳化物面积分数从0.73％增加到1.2％ 。而且，碳含量的增加导致碳化物尺寸的增加。利用X射线衍射图谱确定了γ和γ′相的晶格参数，结果表明，随着碳含量的增加，γ和γ′相的晶格参数减小，且两者之间的失配从0.119％增加到0.02％。含0.09 wt％C的合金的重量百分比为0.167％。合金的最大强度是在碳含量为0.05 wt％时得到的，而延展性随碳含量的增加而略有下降。

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  • 来源
    《High temperature materials and processes》 |2015年第8期|821-826|共6页
  • 作者

    S. Dodangeh; F. Shahri; S. M. Abbasi;

  • 作者单位

    Faculty of Engineering and High-Technology, Iran University of Industries and Mines, Tehran, Iran;

    Department of Advanced Materials and Renewable Energy, Iranian Research Organization for Science and Technology, Tehran, Iran;

    Metallic Materials Center (MMC-MMA), Tehran, Iran;

  • 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);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Incoloy 901; carbon content; microstructure; tensile properties;

    机译：Incoloy 901;碳含量;微观结构拉伸性能;

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