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空氣對流對HFC125/N2氣氛下鎂熔體表面膜的影響
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重慶市自然科學(xué)基金項(xiàng)目（CSTC2008BB4175）；廣東省重大科技專項(xiàng)（2008A090300004）


Effect of Air Convection on Surface Film of Magnesium Alloy Melt under HFC125/N2 Atmosphere
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    摘要:

    HFC125氣體可以對高溫鎂合金提供有效的阻燃保護(hù)。研究了空氣對流對HFC125/N2混合氣體與鎂合金熔體反應(yīng)形成的表面膜的影響。結(jié)果表明：在弱空氣對流條件下所得表面膜幾乎沒有氧原子，而在強(qiáng)空氣對流條件下所得表面膜含有少量氧原子；兩種工作環(huán)境下保護(hù)效果沒有明顯差別。

    Abstract:

    HFC125 gas is an effective ignition-proof protection to high temperature magnesium alloy melt. The surface films from the reaction between HFC125/N2 gas mixture and Mg alloy melt was studied under the weak or strong air convection condition. The results show that under the condition of weak air convection, almost no oxygen ion exists in the obtained surface film, while under the condition of strong air convection, the surface film contains a small amount of oxygen ion. The protection effect does not change obviously for the both working conditions.

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張心靈,游國強(qiáng),査吉利,龍思遠(yuǎn).空氣對流對HFC125/N2氣氛下鎂熔體表面膜的影響[J].稀有金屬材料與工程,2011,40(8):1496~1499.[Zhang Xinling, You Guoqiang, Zha Jili, Long Siyuan. Effect of Air Convection on Surface Film of Magnesium Alloy Melt under HFC125/N2 Atmosphere[J]. Rare Metal Materials and Engineering,2011,40(8):1496~1499.]
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  • 收稿日期:2010-08-23
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