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脈沖電流影響合金熔體特征及其凝固組織的研究進展
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黑龍江省自然科學(xué)基金資助項目（E200504）；哈爾濱工業(yè)大學(xué)交叉學(xué)科基金資助項目(HIT.MD2002.14)


Study Progresses on the Effects of Pulsed Current on Alloy Melts and the Solidification Microstructures of Alloys
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    摘要:

    綜述了國內(nèi)外在脈沖電流液態(tài)金屬處理方面的應(yīng)用，對比總結(jié)了脈沖電流作用對不同合金的熔體處理及其凝固過程的影響，評述了脈沖電流的作用機理。針對當(dāng)前研究中的問題及發(fā)展趨勢，指出脈沖電流作為一種重要的外場輔助手段，在航空航天等輕型耐熱材料的凝固制備和鑄造上具有廣闊的應(yīng)用前景。

    Abstract:

    So far there are a lot of works domestic and abroad about how the pulsed current affects the melts and solidification of alloys, although the results appear uncertain and not systematic due to their different experimental ways, process parameters and conditions. Hereby this paper reviews the world-wide application of the pulsed current on liquid metals, summarizes the effects of pulsed current on the alloys melts and the course of solidification, and analyses their mechanisms. According to our own experimental results, we dig out the existing problems, and point out that the pulsed current is an important external field controlling method with a great potential for manufacturing and casting light-weight and temperature resistant materials used in air and aerospace field.

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丁宏升,張 永,姜三勇,陳瑞潤,郭景杰,徐達鳴,傅恒志.脈沖電流影響合金熔體特征及其凝固組織的研究進展[J].稀有金屬材料與工程,2009,38(1):180~184.[Ding Hongsheng, Zhang Yong, Jiang Sanyong, Chen Ruirun, Guo Jingjie, Xu Daming, Fu Hengzhi. Study Progresses on the Effects of Pulsed Current on Alloy Melts and the Solidification Microstructures of Alloys[J]. Rare Metal Materials and Engineering,2009,38(1):180~184.]
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  • 收稿日期:2008-03-31
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