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稀土鈰對鋁鎂鈰合金燃料熱性能的影響
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華中科技大學(xué) 材料成形與模具技術(shù)國家重點實驗室,華中科技大學(xué) 材料成形與模具技術(shù)國家重點實驗室,華中科技大學(xué) 材料成形與模具技術(shù)國家重點實驗室

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TG113

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國家自然科學(xué)NSAF聯(lián)合基金資助(U1530127);國家自然科學(xué)基金項目（面上項目，重點項目，重大項目）


Effect of Rare Erath Ce on Thermal Performance of Al-Mg-Ce Alloy fuels
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State Key Laboratory of Material Processing and Die Mould Technology,Huazhong University of Science and Technology,State Key Laboratory of Material Processing and Die Mould Technology,Huazhong University of Science and Technology,State Key Laboratory of Material Processing and Die Mould Technology,Huazhong University of Science and Technology

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    摘要:

    采用熔煉法制備了Mg的質(zhì)量分?jǐn)?shù)15%、Ce的質(zhì)量分?jǐn)?shù)為0%,1%,3%和5%的Al-Mg和Al-Mg-Ce合金燃料。用XRD、DTA-TG和SEM/EDX分別表征了合金燃料的物相組成、氧化放熱行為和形貌/元素分布,分析添加不同質(zhì)量分?jǐn)?shù)稀土Ce的合金氧化反應(yīng)差異性的原因及Al-Mg-Ce合金的氧化行為。結(jié)果表明,隨著Ce含量的升高,Al-Mg-Ce合金的氧化放熱性能逐漸降低。稀土Ce的添加使Al-Mg-Ce合金第一個放熱峰開始溫度比Al-Mg合金粉低160℃左右。其中,Al-15Mg-1Ce合金粉的氧化放熱焓為6413uV?s/mg,1300℃時的增重為90%,表現(xiàn)出更好的熱性能。

    Abstract:

    Al-Ce and Al-Mg-Ce alloy fuels were prepared by melting method, which the mass fraction of Mg is 15% and the mass fraction of Ce are 0%, 1%, 3%, 5% . The phase composition, oxidation exothermic performance and appearance/element distribution of alloy fuels were characterized by XRD, TG-DTA and SEM/EDX. The reason of differences in oxidation exothermic reaction between alloys with different mass fraction of rare earth Ce and the oxidation behavior of Al-Mg-Ce alloys were analyzed. The results show that the oxidation exothermic performance of Al-Mg-Ce alloys reduces gradually with the increasing of Ce content. The first oxidation reaction temperature of Al-Mg-Ce alloy powders is about 160℃ lower than Al-Mg alloy powders due to the addition of Ce. Al-15Mg-1Ce alloy powders behave better thermal performance with the heat enthalpy of 6413uV?s/mg and weight increasing 90% at 1300℃ among them.

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易幻,蔡水洲,鄒輝.稀土鈰對鋁鎂鈰合金燃料熱性能的影響[J].稀有金屬材料與工程,2018,47(4):1185~1191.[Yi Huan, Cai Shuizhou, Zou Hui. Effect of Rare Erath Ce on Thermal Performance of Al-Mg-Ce Alloy fuels[J]. Rare Metal Materials and Engineering,2018,47(4):1185~1191.]
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  • 收稿日期:2016-04-14
  • 最后修改日期:2016-05-24
  • 錄用日期:2016-06-12
  • 在線發(fā)布日期: 2018-05-31
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