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低合金鋼(10MOWVNb)中γ/α相界面沉淀及位錯碳化物

  • 摘要: 本文選用薄晶體透射電鏡法及x射線衍射定量相分析法研究10MOWVNb抗氫鋼在γ→α轉變過程中碳化物析出規律,觀察到碳化物主要以相間沉淀,纖維狀生長及位錯上析出三種方式形成,通過對碳化物固溶溫度估算及x射線定量相分析,進一步闡明在所給條件下析出的碳化物主要為V4C3
    運用晶界相對入射電子束傾斜能顯示二維晶界面特征方法,驗證了Honeycombe提出的有關相間沉淀碳化物生核、長大的觀點。
    文中對高溫回火過程中,碳化物可能以恒溫相間沉淀方式析出進行了初步探討。

     

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