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Microstructure Formation Mechanism During a Novel Semisolid Rheo-rolling Process of AZ91 Magnesium Alloy
  • ISSN号：1006-7191
  • 期刊名称：《金属学报：英文版》
  • 时间：0
  • 分类：TG146.22[金属学及工艺—金属材料;一般工业技术—材料科学与工程;金属学及工艺—金属学] TQ172.717[化学工程—水泥工业;化学工程—硅酸盐工业]
  • 作者机构：[1]College of Materials and Metallurgy, Northeastern University, Shenyang 110189, China
  • 相关基金：financially supported by the National Natural Science Foundation for Outstanding Young Scholars of China(No.51222405);National Natural Science Foundation of China(No.51034002);the Fok Ying Tong Education Foundation(No.132002);the Basic Scientific Research Operation of Center University(Nos.N120602002 and N120502001);Chinese National Program for Fundamental Research and Development(No.2011CB610405)
作者： Zhanyong ZHAO Renguo GUAN Xiang WANG Chunming LIU[1]
关键词： AZ91镁合金, 结构形成机理, 微观结构, 轧制过程, 固态流变, AZ91合金, 温度范围, 异相成核, Semisolid, Rolling, AZ91 alloy, Microstructure
中文摘要：

新奇半固体 AZ91 合金的滚动变阻器的过程被建议。AZ91 镁合金的微观结构形成机制在这个过程期间被学习。结果表明暴发成核和异构的成核存在。在谷物生长过程期间，谷物破裂发生了并且逐渐地在泼出的板上转变了成球形的罚款或插座谷物，另外的谷物生长风格是直接球状的生长。由于在转动差距的残余液体的第二等的结晶化，长带的微观结构从 650 与扔的温度的增长变得更好

英文摘要：

A novel semisolid rheo-rolling process of AZ91 alloy was proposed. The microstructure formation mechanism of AZ91 magnesium alloy during the process was studied. The results reveal that the eruptive nucleation and the heterogeneous nucleation exist. During the grain growth process, the grain breakage took place and transformed into fine spherical or rosette grains on the sloping plate gradually, the other grain growth style is direct globular growth. Due to the secondary crystallization of the remnant liquids in the roll gap, the microstructure of the strip becomes finer with the increment of the casting temperature from 650℃ to 690℃. But when the casting temperature reached 710℃, a part of the liquid alloy transformed into the eutectic phases, and the primary grains ripened to form coarse dendrites. In the casting temperature range from 650℃ to 690℃, AZ91 alloy strip with fine spherical or rosette grains was prepared by the proposed process.

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期刊信息
  • 《金属学报：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科协
  • 主办单位:中国金属学会
  • 主编：
  • 地址：沈阳文华路72号
  • 邮编：110016
  • 邮箱：jsxb@imr.ac.cn
  • 电话：024-23971286
  • 国际标准刊号：ISSN：1006-7191
  • 国内统一刊号：ISSN：21-1361/TG
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:286