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CREM法抑制7075鋁合金半連鑄坯中溶質(zhì)元素宏觀偏析的機(jī)制
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TG249.7 TG111.4

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國(guó)家重大基礎(chǔ)發(fā)展規(guī)劃項(xiàng)目(“973”)(G199906490501)


Mechanism of CREM Process on Restraining Macro-Segregation of Solute Elements in 7075 Aluminum Alloy Ingot by DC Cast
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    摘要:

    實(shí)驗(yàn)研究了CREM法半連鑄7075鋁合金過(guò)程中，低頻交變電磁場(chǎng)對(duì)凝固前沿形態(tài)、微觀組織結(jié)構(gòu)、非平衡凝固液固相線位置、結(jié)晶區(qū)間間隔以及溫度場(chǎng)和流動(dòng)場(chǎng)的影響規(guī)律。并據(jù)此對(duì)CREM法抑制7075鋁合金半連鑄坯中溶質(zhì)元素宏觀偏析的機(jī)理進(jìn)行了分析和說(shuō)明。

    Abstract:

    In the producing process of 7075 aluminum alloy by CREM method, the effects of electromagnetic field with low frequency on the evolution of solidifying front shape, non-dendritic structure, liquidus and solidus temperature of non-equilibrium freezing, solidification interval, flow pattern and temperature field have been experimentally investigated. An explanation is also given to the mechanism of CREM process on restraining macro-segregation of solute elements in 7075 aluminum alloy ingot by DC cast.

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張勤 崔建忠. CREM法抑制7075鋁合金半連鑄坯中溶質(zhì)元素宏觀偏析的機(jī)制[J].稀有金屬材料與工程,2005,34(4):627~631.[Zhang Qin, Cui Jianzhong. Mechanism of CREM Process on Restraining Macro-Segregation of Solute Elements in 7075 Aluminum Alloy Ingot by DC Cast[J]. Rare Metal Materials and Engineering,2005,34(4):627~631.]
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  • 最后修改日期:2003-09-22
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