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The growth behavior of austenite grain in the heating process of 300M steel

机译：300M钢加热过程中奥氏体晶粒的生长行为

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摘要

The 300M steel was heated in an electric furnace at the temperatures of 850, 900, 950, 1000, 1050℃, and holding time of 5, 10, 30, 60, 90, 120min. The grain size of austenite was measured by using the linear intercept method on Olympus PMG3 metallographic microscope. The experimental results show that grain size of austenite increases with the increasing of heating temperature and holding time, and the grain growth model of austenite in 300M steel is in the following: d = 4.04 × 10~6t~(0.17)exp(-(1.32 × 10~5/RT)).
机译：将300M钢在电炉中加热到850、900、950、1000、1050℃，保温时间为5、10、30、60、90、120分钟。在奥林巴斯PMG3金相显微镜上通过线性截距法测量奥氏体的晶粒尺寸。实验结果表明，奥氏体晶粒尺寸随加热温度和保温时间的增加而增大，在300M钢中奥氏体晶粒长大模型为：d = 4.04×10〜6t〜（0.17）exp（-（ 1.32×10〜5 / RT）。

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  • 来源
    《Materials Science and Engineering》 |2011年第15期|p.4967-4972|共6页
  • 作者

    S.S.Zhang; M.Q Li; Y.G. Liu; J. Luo; T.Q. Liu;

  • 作者单位

    School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China;

    School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China;

    School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China;

    School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China;

    Beijing Institute of Aeronautical Materials, AVIC, Beijing 10095, PR China;

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  • 正文语种 eng
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  • 关键词

    300M steel; heating temperature; holding time; austenite grain growth;

    机译：300M钢;加热温度保持时间;奥氏体晶粒长大;

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