利用剪切/搅拌与流变轧制制备了Mg-3Sn-1Mn-xSiC(质量分数/％)复合板材,研究了SiC对流变轧制Mg-3Sn-1Mn-xSiC复合材料组织性能的影响.结果表明:经过活化处理的SiC颗粒在Mg-3Sn-l Mn-xSiC复合材料内部分布较均匀;SiC颗粒可促进Mg-3Sn-1Mn-xSiC复合材料在凝固过程中Mg2Sn相异质形核,Mg2Sn相在SiC颗粒表面形核长大;同时,SiC颗粒可促进Mg-3Sn-1Mn-xSiC复合材料在凝固过程中α-Mg晶粒的细化与球化,随着SiC含量增加,α-Mg晶粒平均直径和圆度逐渐减小.制备的Mg-3Sn-1 Mn-10SiC复合板材抗拉强度和伸长率分别达到242±4MPa和7.6±0.3％,比相同条件下制备的Mg-3Sn-1Mn合金板材的抗拉强度和伸长率分别提高了38％和36％.
参考文献
| [1] | 黄晓艳,周宏.镁合金的研究应用及最新进展[J].材料与冶金学报,2003(04):300-306. |
| [2] | 曾荣昌,柯伟,徐永波,韩恩厚,朱自勇.Mg合金的最新发展及应用前景[J].金属学报,2001(07):673-685. |
| [3] | Won-Bae Lee;Chang-Yong Lee;Myoung-Kyun Kim .Microstructures and wear property of friction stir welded AZ91 Mg/SiC particle reinforced composite[J].Composites science and technology,2006(11/12):1513-1520. |
| [4] | Braszczynska KN.;Litynska L.;Zyska A.;Baliga W. .TEM analysis of the interfaces between the components in magnesium matrix composites reinforced with SiC particles[J].Materials Chemistry and Physics,2003(2/3):326-328. |
| [5] | 胡强,揭小平,闫洪,张发云,陈国香.SiCp/AZ61镁基复合材料的力学与阻尼性能[J].锻压技术,2008(02):106-109. |
| [6] | Zheng MY.;Wu K.;Kamado S.;Kojima Y. .Aging behavior of squeeze cast SiCw/AZ91 magnesium matrix composite[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):67-75. |
| [7] | Y. Cai;M. J. Tan;G. J. Shen;H. Q. Su .Microstructure and heterogeneous nucleation phenomena in cast SiC particles reinforced magnesium composite[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):232-239. |
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