| 热挤压与退火处理后SiO2/Mg复合材料的织构研究 |
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| 引用本文： | 严峰,陈磊,滕颖丽.热挤压与退火处理后SiO2/Mg复合材料的织构研究[J].大连铁道学院学报,2013(6):83-85. |
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| 作者姓名： | 严峰 陈磊 滕颖丽 |
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| 作者单位： | 大连交通大学材料科学与工程学院,辽宁大连116028 |
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| 摘 要： | 采用金相显微镜和XRD衍射技术对Si02/Mg复合材料微观组织和Mg基体的织构在热挤压和退火处理中的演化规律进行了分析.结果表明,SiO2/Mg复合材料在400℃挤压过程中发生再结晶,基体形成〈 1010 〉//ED纤维织构.经450℃×30 min退火后,{0002}极密度最大值由退火前的60提高到72,而{1010}和{ 1120}极密度最大值较退火前略有下降.
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| 关 键 词： | 镁基复合材料 织构 热挤压 退火 |
Texture Study of Hot Extrusion and Annealing Processed SiO2/Mg Composite |
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| YAN FengSchool of Materials Science and Engineering,Dalian Jiaotong University,Dalian,China CHEN LeiSchool of Materials Science and Engineering,Dalian Jiaotong University,Dalian,China TENG Ying-li.Texture Study of Hot Extrusion and Annealing Processed SiO2/Mg Composite[J].Journal of Dalian Railway Institute,2013(6):83-85. |
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| Authors: | YAN FengSchool of Materials Science and Engineering Dalian Jiaotong University Dalian China CHEN LeiSchool of Materials Science and Engineering Dalian Jiaotong University Dalian China TENG Ying-li |
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| Institution: | YAN Feng(School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China) CHEN Lei(School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China) TENG Ying-li(School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China) |
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| Abstract: | The microstructure and the texture evolution of SiO2/Mg composite during hot extrusion and annealing treatments were investigated by optical microscopy and X-ray diffraction respectively.The results show that the recrystallization occurrs during hot extrusion at 400 ℃ and the 〈 10（1）0 〉//ED fiber texture in Mg matrix is formed.The annealing treatment carried out at 450℃ for 30 minutes leads to a increment of the maximum intensity of {0002} from 60 to 72,while those of { 1010 } and { 11（2）0} decrease at the same time. |
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| Keywords: | magnesium matrix composite texture hot extrusion annealing |
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