合金成分对铝合金直接氧化生长过程的影响
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摘要
为了控制熔融铝合金直接氧化法制备Al_2O_3/Al复合材料的氧化生长,本文通过热重分析实验,研究了高温下引入Mg、Zn、Cu等合金组分对Al-Si合金直接氧化生长过程的影响.结果表明,Zn、Mg元素同时引入对氧化生长过程产生阻碍,造成生长孕育期延长,生长速率降低,5Zn-5Mg合金的生长速率仅有5Zn合金的三分之一;而Cu的引入有助于改善金属和陶瓷相间的润湿特性,缩短铝合金氧化生长孕育期,促进复合材料的氧化生长,改善材料微观结构.
The effect of Mg,Zn,Cu on Al-Si alloy directed oxidation at high temperature in air was studied by the TG experiments in order to control the oxidation growth of Al_2O_3/Al composite preparation.It is shown that it's an obstacle to introduce Mg and Zn at the same time,the incubation period of oxidation process is delayed and the velocity of growth declined,and the worst when 5 wt%Zn and 5 wt%Mg are introduced,only 1/3 velocity of the only 5 wt%Zn alloy.But Cu could improve the growth by promote interface character of Al_2O_3/Al.It is also able to change microstructures of the composites.
The effect of Mg,Zn,Cu on Al-Si alloy directed oxidation at high temperature in air was studied by the TG experiments in order to control the oxidation growth of Al_2O_3/Al composite preparation.It is shown that it's an obstacle to introduce Mg and Zn at the same time,the incubation period of oxidation process is delayed and the velocity of growth declined,and the worst when 5 wt%Zn and 5 wt%Mg are introduced,only 1/3 velocity of the only 5 wt%Zn alloy.But Cu could improve the growth by promote interface character of Al_2O_3/Al.It is also able to change microstructures of the composites.
引文
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[15] 何树先,袁森,王俊.直接金属氧化法制备Al2O3/Al陶瓷基复合材料的生长方式[J].上海交通大学学报,2001,35(5):676-679.
[16] 李戈杨,戴嘉维.铝液在Al2O3上润湿性的改善[J].材料导报,2000,12(4):11-15.
[17] 王险峰,郑世达,刘凤美.活性Cu-Ti钎料对Al2O3陶瓷润湿性的研究[J].热加工工艺,2014,43(5):13-16.
[18] Zhao J,Chai H,Zhang F.Formation of Al2O3/Al composites by directed melt oxidation of Al-Si-Zn alloy[J].Journal of Materials Engineering & Performance,2010,19(1):46-51.
[19] Qin C,Lai M O,Shi B C S.Microstructure and growth mechanism of Al2O3/Al ceramic matrix composite made by directed oxidation of Al alloys[J].Mrs Proceedings,2011,365(4):133-139.
[20] 周曦亚,高钦.Al2O3/Al Lanxide复合材料中气孔的形成机理及影响因素[J].华南理工大学学报(自然科学版),2004,32(9):46-49.
[2] 金胜利,李亚伟.定向金属氧化法制备Al/Al2O3陶瓷基复合材料研究现状[J].材料导报,2006,20(6):78-82.
[3] 许长庆,姜延飞,徐立宏,等.直接氧化法制备Al2O3/Al陶瓷基复合材料研究[J].河北工业大学学报,2000,29(4):78-80.
[4] Venugopalan H,Tankala K,Debroy T.Kinetics of directed oxidation of Al-Mg alloys in the initial and final stages of synthesis of Al2O3/Al composites[J].Materials Science and Engineering,1996,232:64-75.
[5] Venugopalan H,Debroy T.Growth stage kinetics in the synthesis of Al2O3/Al composites by direct oxidation of Al-Mg and Al-Mg-Si alloys[J].European Ceramic Society,1996,16:1 351-1 363.
[6] 赵敬忠,常金晶,岳建设.Al-Si-Zn合金直接氧化形成复合材料的结构演变[J].硅酸盐学报,2007,35(8):1 007-1 012.
[7] 陈建,潘复生.合金元素影响铝/陶瓷界面润湿性的研究现状[J].兵器材料科学与工程,1999,22(4):53-57.
[8] 赵敬忠,金志浩.Lanxide陶瓷基复合材料的研究进展[J].硅酸盐通报,2002,21(6):46-52.
[9] Gu X ,Hand R J ,Argent B B .Thermodynamic modelling of directed melt oxidation processing for ceramic matrix composites[J].Journal of the European Ceramic Society,1999,19(8):1 641-1 649.
[10] Hanabe M,Jayaram C,Bhashkaranta.Growth of Al2O3/Al composites from Al-Zn alloys[J].Acta Materialia,1996,44(2):819-829.
[11] Chandrashekar A,Ajaykumar B S,Reddappa H N.Mechanical,structural and corrosion behaviour of AlMg4.5/nano Al2O3 metal matrix composites[J].Materials Today Proceedings,2018,5(1):2 811-2 817.
[12] Nagelberg A S,Antolin S,Urquhart A W.Formation ofAl2O3/metal composites by the directed oxidation of molten Al-Mg-Si alloys:Part II,growth kinetics[J].Journal of the American Ceramic Society,2010,75(2):455-462.
[13] 赵敬忠,高积强,金志浩.Al-Si-Zn合金的直接氧化生长[J].中国有色金属学报,2005,15(2):38-44.
[14] Newkirk M S,Urquhart A W,Zwicker H R,et al.Formation of LanxideTM ceramic composite materials[J].Journal of Materials Research,2011,1(1):81-89.
[15] 何树先,袁森,王俊.直接金属氧化法制备Al2O3/Al陶瓷基复合材料的生长方式[J].上海交通大学学报,2001,35(5):676-679.
[16] 李戈杨,戴嘉维.铝液在Al2O3上润湿性的改善[J].材料导报,2000,12(4):11-15.
[17] 王险峰,郑世达,刘凤美.活性Cu-Ti钎料对Al2O3陶瓷润湿性的研究[J].热加工工艺,2014,43(5):13-16.
[18] Zhao J,Chai H,Zhang F.Formation of Al2O3/Al composites by directed melt oxidation of Al-Si-Zn alloy[J].Journal of Materials Engineering & Performance,2010,19(1):46-51.
[19] Qin C,Lai M O,Shi B C S.Microstructure and growth mechanism of Al2O3/Al ceramic matrix composite made by directed oxidation of Al alloys[J].Mrs Proceedings,2011,365(4):133-139.
[20] 周曦亚,高钦.Al2O3/Al Lanxide复合材料中气孔的形成机理及影响因素[J].华南理工大学学报(自然科学版),2004,32(9):46-49.