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A High Strength Mg-6Zn-1Y-1Ce Alloy Prepared by Hot Extrusion 被引量：5

A High Strength Mg-6Zn-1Y-1Ce Alloy Prepared by Hot Extrusion
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摘要 Microstructures and tensile properties of Mg-6Zn-IY-1Ce alloy extruded in a temperature range between 300 ℃ and 400 ℃ were investigated. The yield strength of the material increased as the extrusion temperature decreased due to grain refinement. The yield strengths and grain sizes of extruded samples met Hall-Petch equation. The microstructure of the alloy extruded at 300 ℃ had a bimodal grain size distribution with an average grain size of 2.7 μm and showed a yield strength of 327 MPa with an elongation of 9%. The fine-grained microstructures were attributed to the dynamic recrystallization and the pinning effect of fine strengthening particles. Microstructures and tensile properties of Mg-6Zn-IY-1Ce alloy extruded in a temperature range between 300 ℃ and 400 ℃ were investigated. The yield strength of the material increased as the extrusion temperature decreased due to grain refinement. The yield strengths and grain sizes of extruded samples met Hall-Petch equation. The microstructure of the alloy extruded at 300 ℃ had a bimodal grain size distribution with an average grain size of 2.7 μm and showed a yield strength of 327 MPa with an elongation of 9%. The fine-grained microstructures were attributed to the dynamic recrystallization and the pinning effect of fine strengthening particles.
作者 杨文朋 GUO Xuefeng
机构地区 School of Materials Science and Engineering School of Materials Science and Engineering
出处 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2013年第2期389-395,共7页 武汉理工大学学报（材料科学英文版）
基金 Funded by the National Natural Science Foundation of China(No.50271054) the Ph D Programs Foundation of Ministry of Education of China(No.20070700003) the Science and Technologies Foundation of Henan of China(No.102102210031) the Natural Science Foundation of Henan Educational Committee of China(No.2010A430008)
关键词 magnesium alloy EXTRUSION dynamic recrystallization tensile properties Hall-Petch equation magnesium alloy extrusion dynamic recrystallization tensile properties Hall-Petch equation
分类号 TG379 [金属学及工艺—金属压力加工]
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参考文献33

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同被引文献61

  • 1赵剑峰,张建华,张剑峰,余承业,黄因慧.镍合金激光直接烧结成形制件显微结构及微观缺陷[J].中国机械工程,2005,16(3):264-267. 被引量：15
  • 2王斌,方西亚,易丹青,周玲伶,罗文海.稀土元素钇和铈对Mg-Zn-Zr系合金组织和性能的影响[J].机械工程材料,2005,29(12):17-20. 被引量：8
  • 3徐春杰,郭学锋,郑水云,张忠明.往复挤压高韧Mg-Zn-Y合金[J].材料工程,2007,35(7):16-20. 被引量：8
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引证文献5

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Journal of Wuhan University of Technology(Materials Science)
2013年 第2期

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