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高密度脈沖電流對(duì)2024鋁合金凝固組織的影響
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TG146.21 TG111.4

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SupportedbytheNationalFundamentalResearchProgramofChina(G1999064900-05)


Effect of Higher Density Pulsed Current on Solidification Structures of 2024 Al- alloy
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    摘要:

    研究了把高密度脈沖電流以外部瞬間能量和環(huán)境作功的形式注入到凝固過(guò)程中的高熔點(diǎn)2024鋁合金熔體以細(xì)化其凝固組織，結(jié)果表明，高密度脈沖電流可以顯著細(xì)化其凝固組織，討論了高密度脈沖電流細(xì)化凝固組織的機(jī)理，指出了需要進(jìn)一步解決的新問(wèn)題。

    Abstract:

    Higher density pulsed current,whic h is considered as an external transient energy and an environmental appl ying work poured into a melt during solidification,is used to refine solidificati on structures of 2024Al -alloy with t he higher melting tem-perature in the present paper.Experimental results show that the solidi fication structure can be remarkabl y refined by the appli-cation of the higher density pulsed c urrent.A primary refinement mechan ism is discussed in detail and some new questions to be solved are also pointed out.

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訾炳濤 崔建忠 等.高密度脈沖電流對(duì)2024鋁合金凝固組織的影響[J].稀有金屬材料與工程,2003,(1):9~12.[Zi Bingtao, Yao Kefu, Liu Wenjin, Cui Jianzhong, Ba Qixian . Effect of Higher Density Pulsed Current on Solidification Structures of 2024 Al- alloy[J]. Rare Metal Materials and Engineering,2003,(1):9~12.]
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