| Fe3(Si1-x,Alx)金属间化合物的制备及其力学性能研究 |
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| 引用本文： | 周琦,贾建刚,赵红顺,章新民.Fe3(Si1-x,Alx)金属间化合物的制备及其力学性能研究[J].华中科技大学学报(自然科学版),2011(2):76-79,84. |
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| 作者姓名： | 周琦 贾建刚 赵红顺 章新民 |
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| 作者单位： | 兰州理工大学甘肃省有色金属新材料国家重点实验室;无锡西姆莱斯石油专用管制造有限公司; |
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| 基金项目： | 国家自然科学基金资助项目(51001057); 甘肃省自然科学基金资助项目(1014RJZA006) |
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| 摘 要： | 采用真空电弧熔炼退火制备了Fe3(Si1-x,Alx)(x=0.2,0.4,0.6)Fe3Si基金属间化合物.通过XRD和SEM对制备出的试样进行表征,同时对其显微硬度、压缩强度及弯曲强度等力学性能进行了综合分析.结果表明,Fe3(Si1-x,Alx)金属间化合物仍然保持Fe3Si物相不变.Al的合金化改性降低了Fe3Si金属间化合物的显微硬度,有利于改善Fe3Si的脆性.Fe3(Si0.67,Al0.33)表现出较Fe3Si高的抗压和抗弯强度,这是其适中的有序度值与变形过程中加工硬化作用的综合结果.Fe3(Si1-x,Alx)表现出明显的二次解理特征,这利于断裂过程中裂纹能量的释放,从而提高其强度.
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| 关 键 词： | Fe3(Si1-x Alx) Al的合金化 金属间化合物 真空熔炼 力学性能 强度 |
Preparation and mechanical properties of Fe_3(Si_(1-x),Al_x) intermetallics |
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| Zhou Qi Jia Jiangang Zhao Hongshun Zhang Xinmin.Preparation and mechanical properties of Fe_3(Si_(1-x),Al_x) intermetallics[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2011(2):76-79,84. |
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| Authors: | Zhou Qi Jia Jiangang Zhao Hongshun Zhang Xinmin |
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| Institution: | Zhou Qi1 Jia Jiangang1 Zhao Hongshun2 Zhang Xinmin1(1 State Key Laboratory of Gansu Advanced Nonferrous Metal Materials,Lanzhou University of Technology,Lanzhou 730050,China,2 Wuxi Seamless Oil Pipe Co.Ltd.Wuxi 214028,Jiangsu China) |
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| Abstract: | Three kinds of Fe3(Si1-x,Alx)(x=0.2,0.4,0.6) Fe3Si based intermetallic compounds were prepared by vacuum arc melting and annealing.Phase constitutions of the intermetallics were investigated by the mean XRD and SEM.Mechanical property was comprehensively studied by microhardness test,compress test,and bending strength test etc.The results show that Fe3(Si1-x,Alx)(x=0.2,0.4,0.6) still remains the phase of Fe3Si.Al alloying increases microhardness of Fe3Si,which is suitable for improveing brittleness of Fe3Si... |
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| Keywords: | Fe3(Si1-x Alx) Al alloying intermetalics vacuum melting mechanical properties strength |
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