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鈦-鋼爆炸復(fù)合板熱處理過程中的擴(kuò)散行為及數(shù)學(xué)模型
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Diffusion Behavior and Mathematical Model of Ti-Steel Explosive Clad Plate
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    摘要:

    利用光學(xué)顯微鏡、掃描電子顯微鏡、X射線衍射儀、俄歇電子能譜分析儀和拉剪實(shí)驗(yàn)，研究了不同的熱處理加熱溫度和保溫時(shí)間對(duì)鈦-鋼爆炸復(fù)合板界面組織特征和性能的影響。熱處理溫度為750、850、950 ℃，保溫時(shí)間為30、60、120 min。結(jié)果表明：熱處理過程加速了組織轉(zhuǎn)變和界面元素?cái)U(kuò)散。界面元素?cái)U(kuò)散主要形成的化合物為TiC和Ti-Fe金屬間化合物（Fe2Ti/FeTi）。隨著溫度的升高，界面擴(kuò)散層厚度增加，復(fù)合板剪切強(qiáng)度下降。根據(jù)實(shí)驗(yàn)數(shù)據(jù)，提出了界面擴(kuò)散層厚度和剪切強(qiáng)度與加熱溫度和保溫時(shí)間的函數(shù)關(guān)系

    Abstract:

    Effects of heat treatments on microstructure and mechanical properties of Ti-steel explosive clad plates were investigated by optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), auger electronic spectrum (AES) and shear test. The Ti-steel explosive clad plates were subjected to a heat treatment process in the temperature range of 650~950 oC for 30~120 min. The results show that the heat treatment process leads to a great enhancement of diffusion and microstructural transformation. During the heat treatment process, a large amount of Ti-Fe intermetallics (Fe2Ti/FeTi) along with some TiC distributing continuously are formed at diffusion reaction layer. With the treatment temperature increasing, the thickness of diffusion layer increases and the shear strength decreases, whose functional relationship was proposed with the heat temperature as well as the holding time according to the experimental data

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江海濤,閻曉倩,劉繼雄,曾尚武,段曉鴿.鈦-鋼爆炸復(fù)合板熱處理過程中的擴(kuò)散行為及數(shù)學(xué)模型[J].稀有金屬材料與工程,2015,44(4):972~976.[Jiang Haitao, Yan Xiaoqian, Liu Jixiong, Zeng Shangwu, Duan Xiaoge. Diffusion Behavior and Mathematical Model of Ti-Steel Explosive Clad Plate[J]. Rare Metal Materials and Engineering,2015,44(4):972~976.]
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  • 收稿日期:2014-04-12
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  • 在線發(fā)布日期: 2015-06-08
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