应伟峰.SiCp在Mg-Zn-Ca-Mn复合材料的力学性能及微观结构的影响[J].稀有金属材料与工程,2016,45(1):32~35.[yingweifeng.Effect of SiCp on the microstructure and mechanical properties of Mg-Zn-Ca-Mn matrix composites[J].Rare Metal Materials and Engineering,2016,45(1):32~35.]
SiCp在Mg-Zn-Ca-Mn复合材料的力学性能及微观结构的影响
投稿时间:2013-12-24  修订日期:2014-01-24
中文关键词:  复合材料  微观结构  拉伸性能
基金项目:
中文摘要:
      在目前的研究中,利用搅拌铸造结合超声处理方法成功的制备出了不同体积分数(5 和10 vol.%)的微米颗粒增强的AZ31B镁基复合材料。利用350℃,12:1的挤压比对铸锭进行了挤压处理。利用金相和扫描电子显微镜两种不同体积分数的SiCp被选做为增强体,利用半固态结合超声处理法制备了Mg-Zn-Ca-Mn复合材料,然后在350℃用15:1的挤压比进行了热挤压。利用OM、SEM和TEM对材料的微观结构进行了检测。热挤压后的微观结构显示SiC颗粒的分布较为均匀且在1vol.% SiCp/Mg-Zn-Ca-Mn 和 3vol.% SiCp/Mg-Zn-Ca-Mn复合材料中晶粒被显著细化。SiCp的引入可以改善0.2%屈服强度和抗拉强度。屈服强度和抗拉强度是随着颗粒含量的增加而增加。
Effect of SiCp on the microstructure and mechanical properties of Mg-Zn-Ca-Mn matrix composites
英文关键词:composite  microstructure  tensile properties
英文摘要:
      Mg-Zn-Ca-Mn matrix composites reinforced with two volume fractions (1 and 3vol.%) of SiC particles (1μm) were fabricated by semisolid stirring assisted ultrasonic vibration method, and then extruded at 350℃ with the extrusion ratio of 15:1. The microstructure of materials was examined by optical microscopy (OM) and scanning electron microscope (SEM) and transmission electron microscopy(TEM). The microstructure analysis showed that the relative uniform SiCp distribution and the refined grain were obtained in the 1vol.% SiCp/Mg-Zn-Ca-Mn and 3vol.% SiCp/Mg-Zn-Ca-Mn composites during the extrusion. The introduction of SiCp could contribute to improve the 0.2% yield strength and ultimate tensile strength. Both of the yield strength and ultimate tensile strength increased with the increase of SiCp content.
作者单位E-mail
应伟峰 辽东学院 yingweifengneu@163.com 
摘要点击次数: 55
全文下载次数: 56
查看全文  查看/发表评论  
关闭