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首页> 外文期刊>Materials Science and Engineering >Hot shortness behavior of a copper-alloyed high strength interstitial free steel
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Hot shortness behavior of a copper-alloyed high strength interstitial free steel

机译：铜合金高强度间隙游离钢的热脆性

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摘要

Hot shortness studies have been carried out on a copper-alloyed high strength interstitial free steel concentrating on the factors such as strain rate, temperature of deformation and, time and temperature of high temperature exposure. Thermomechanical schedules have been simulated for industrial conventional and direct hot rolling deformation processes. In comparison with traditional interstitial free steel, the mechanical properties of copper-alloyed high strength interstitial free steel at high temperature deteriorate significantly due to hot shortness. The best mechanical properties were obtained when the steel was reheated in Ar atmosphere to avoid oxidation and concomitant hot shortness. Enhanced oxidation of the material before hot deformation resulting from high temperature exposure in air for longer durations increases the susceptibility of the material to hot shortness. It has been shown that 1373 K is the most detrimental temperature with regard to the susceptibility of the material to hot shortness irrespective of the deformation schedule. Temperatures higher and lower than 1373 K reduce the susceptibility.
机译：已经对铜合金高强度无间隙钢进行了热脆性研究，重点研究了诸如应变速率，变形温度以及高温暴露的时间和温度等因素。已经模拟了用于工业常规和直接热轧变形过程的热机械时间表。与传统的间隙自由钢相比，铜合金高强度间隙自由钢在高温下的机械性能由于热脆性而大大降低。当在Ar气氛中对钢进行重新加热时，可获得最佳的机械性能，以避免氧化和随之而来的热脆性。由于长时间暴露在空气中高温导致的热变形之前，材料的增强氧化作用增加了材料对热脆性的敏感性。已经表明，就材料对热脆性的敏感性而言，无论变形时间表如何，1373 K是最有害的温度。高于和低于1373 K的温度会降低磁化率。

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  • 来源
    《Materials Science and Engineering》 |2013年第20期|288-298|共11页
  • 作者

    R. Rana; W. Bleck; S.B. Singh; O.N. Mohanty;

  • 作者单位

    Department of Ferrous Metallurgy (IEHK), RWTH Aachen University, D 52072 Aachen, Germany,Department of Metallurgical and Materials Engineering Indian Institute of Technology Kharagpur, Kharagpur 721302, India,Advanced Steel Processing & Products Research Center, Metallurgical & Materials Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, CO 80401, USA;

    Department of Ferrous Metallurgy (IEHK), RWTH Aachen University, D 52072 Aachen, Germany;

    Department of Metallurgical and Materials Engineering Indian Institute of Technology Kharagpur, Kharagpur 721302, India;

    Department of Metallurgical and Materials Engineering Indian Institute of Technology Kharagpur, Kharagpur 721302, India,RSB Metaltech, RSB Group, Bhubaneswar, India;

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  • 正文语种 eng
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  • 关键词

    Interstitial free steel; Copper alloying; Hot shortness; High temperature deformation; Oxidation;

    机译：无间隙钢;铜合金化;热脆;高温变形;氧化作用;

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