Effect of Silicon Contents of Aluminium Alloy on Properties of Si3N4/Al Composites Prepared by Pressureless Infiltration
摘 要
对不同硅含量的铝合金无压浸渗Si3N4预制件制备了Si3N4/Al复合材料, 并对其性能进行了研究分析。结果表明: 在无压浸渗过程中, Si3N4与铝合金发生了界面反应; Si3N4/Al复合材料的断裂机制以基体的韧性撕裂和增强体的脆性断裂为主; 当无压浸渗用铝合金中硅质量分数从0增加到12%时, Si3N4/Al复合材料的硬度由69 HRA增加到77 HRA, 抗弯强度由498 MPa降低至333 MPa。
Abstract
Si3N4/Al composites with different silicon contents were prepared by pressureless infiltration, and microstrcuture and properties of the composites were investigated. The results show that interfacial reaction happened between the aluminium alloy and Si3N4. Ductile fracture of the aluminium alloy matrix and cleavage fracture of Si3N4 were the main fracture machanism of the composites. With the silicon mass fraction of the aluminium alloy increased from 0 to 12%, the hardness of the composites increased from 69 HRA to 77 HRA and the bending strength decreased from 498 MPa to 333 MPa.
中图分类号 TB333
所属栏目 试验与研究
基金项目 安徽省教育厅自然科学研究资助项目(2012AJZR0018)
收稿日期 2013/7/10
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备注吴米贵(1986-), 男, 硕士研究生。
引用该论文: WU Mi-gui,LIU Jun-wu,JIANG Hui-bin,HE Gang,YIN Hui. Effect of Silicon Contents of Aluminium Alloy on Properties of Si3N4/Al Composites Prepared by Pressureless Infiltration[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2014, 50(6): 409~412
吴米贵,刘君武,蒋会宾,贺港,尹辉. 铝合金中硅含量对无压浸渗Si3N4/Al复合材料性能的影响[J]. 理化检验-物理分册, 2014, 50(6): 409~412
被引情况:
【1】姚 强,朱宇宏,王 燕,路 通,王 琼, "GB/T 32496-2016《金属基复合材料增强体体积含量试验方法 图像分析法》标准解析",理化检验-物理分册 52, 621-624(2016)
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参考文献
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【3】陈海东, 王扬卫, 王富耻, 等. 无压浸渗制备Si3N4/Al复合材料的工艺与抗弹性能研究[J]. 兵器材料科学与工程, 2005, 28(2):39-43.
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【6】王扬卫, 于晓东, 王富耻, 等. 无压浸渗制备Si3N4/Al复合材料的反应浸渗机理[J]. 稀有金属材料与工程, 2007, 36(A01):777-780.
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