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C2Cl6除氣劑-超聲場(chǎng)聯(lián)合處理對(duì)鋁合金氫含量及力學(xué)性能的影響
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國(guó)家自然科學(xué)基金 (51074207，50974037)；國(guó)家“十二五”科技支撐計(jì)劃課題（2011BAE22B03）；國(guó)家“十二五”科技支撐計(jì)劃子課題（2012BAF09B01）；國(guó)家“973”計(jì)劃課題（2013CB632203）；東北大學(xué)博士研究生科研創(chuàng)新項(xiàng)目（N100609002）；中國(guó)博士后科學(xué)基金資助項(xiàng)目 (20100471468)


Effect of Combination of C2Cl6 Degasser and Ultrasonic Field on Hydrogen Content and Mechanical Properties of Aluminum Alloys
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    摘要:

    研究了C2Cl6除氣劑-超聲聯(lián)合處理對(duì)鋁合金（Al-3.06%Si, Al-3.21%Mg 和 2024合金）氫含量及2024合金力學(xué)性能的影響。結(jié)果表明：聯(lián)合處理可大幅度縮短超聲除氣時(shí)間。聯(lián)合除氣后對(duì)2024合金力學(xué)性能影響很大：鑄錠的抗拉強(qiáng)度及延伸率比未除氣時(shí)分別提高了28.3%及92.3%（最大增幅），除氣處理對(duì)2024合金的屈服強(qiáng)度影響很小，僅提高6.7%（最大增幅）。另外，除氣后斷裂方式從脆性斷裂向微孔聚集型斷裂轉(zhuǎn)變，最終提高了力學(xué)性能。

    Abstract:

    The effects of combined C2Cl6 degasser and ultrasonic treatment on the hydrogen content in the Al-3.06%Si, Al-3.21%Mg and 2024 aluminum alloys and the mechanical properties of 2024 aluminum alloy were studied. The results show that the degassing time with a single ultrasonic treatment is greatly shortened by the combined treatment. Furthermore, the mechanical properties of the 2024 alloy are also significantly affected by the combined treatment: the tensile strength and elongation are increased by 28.3% and 92.3% (maximum increase), respectively, compared with those without any treatment. However, the yield strength is slightly affected by the degassing treatment (with an increase of only 6.7%, maximum increase). In addition, with the degassing treatment, the fracture mode is transformed from brittle fracture to microvoid coalescence fracture, improving the mechanical properties of the alloy.

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賈 征,樂(lè)啟熾,張志強(qiáng),王紅玲,崔建忠. C2Cl6除氣劑-超聲場(chǎng)聯(lián)合處理對(duì)鋁合金氫含量及力學(xué)性能的影響[J].稀有金屬材料與工程,2014,43(6):1427~1431.[Jia Zheng, Le Qichi, Zhang Zhiqiang, Wang Hongling, Cui Jianzhong. Effect of Combination of C2Cl6 Degasser and Ultrasonic Field on Hydrogen Content and Mechanical Properties of Aluminum Alloys[J]. Rare Metal Materials and Engineering,2014,43(6):1427~1431.]
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  • 收稿日期:2013-06-27
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  • 在線發(fā)布日期: 2014-11-13
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