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Effects of holding temperature and time on semi-solid isothermal heat-treated microstructure of ZA84 magnesium alloy
  • ISSN号：1003-6326
  • 期刊名称：《中国有色金属学报：英文版》
  • 时间：0
  • 分类：TG13[金属学及工艺—合金;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 作者机构：[1]College of Materials Science and Engineering, Chongqing Institute of Technology, Chongqing 400050, China, [2]College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China
  • 相关基金：Project（50725413） supported by the National Natural Science Funds for Distinguished Young Scholar in China; Project（2007CB613704） supported by the National Basic Research Program of China; Projects（2006AA4012-9-6, 2007BB4400） supported by the Chongqing Science and Technology Commission of China
作者： 杨明波[1,2], 潘复生[2], 程仁菊[2], 沈佳[1]
关键词： ZA84镁合金, 半固态状态, 等温热处理, 温度条件, ZA84 magnesium alloy, semi-solid state, isothermal heat treatment
中文摘要：

由半固体与非树枝状的微观结构制作 ZA84 镁合金的可行性等温的热处理过程和在半固体上保持温度和时间的效果合金的等温的对待热的微观结构被调查。结果显示由合适的半固体与非树枝状的微观结构生产 ZA84 合金是可能的等温的热处理。在在 560-575 被对待以后

英文摘要：

The feasibility of fabricating ZA84 magnesium alloy with non-dendritic microstructure by a semi-solid isothermal heat treatment process and the effects of holding temperature and time on the semi-solid isothermal heat-treated microstructure of the alloy were investigated. The results indicate that it is possible to produce ZA84 alloy with non-dendritic microstructure by suitable semi-solid isothermal heat treatment. After being treated at 560-575 ℃ for 120 min, ZA84 magnesium alloy can obtain a non-dendritic microstructure with 14.2%-25.6% liquid fraction and an average size of 56-65 pm of the unmelted primary solid particles. With the increasing holding time from 30 to 120 min or holding temperature from 560 to 575 ℃, the average size of unmelted primary solid particles decreases and globular tendency becomes more obvious. Under the experimental condition, the microstructural evolution of ZA84 alloy during semi-solid isothermal treatment is mainly composed of three stages of initial coarsening, structural separation and spheroidization. The subsequent coarsening of spheroidal grains is not observed.

同期刊论文项目
材料制备加工科学与工程
期刊论文 176 获奖 6 专利 32
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Mn元素对Mg-Zn系镁合金组织性能影响的研究现状与展望
温度对六方系金属层错能影响的热力学模型
溶质元素及其偏聚对六方系金属层错能的影响
铸态和挤压变形态Mg-Zn-Al-Re镁合金的室温和高温力学性能
挤压温度对Mg-2.0Zn-0.3Zr-0.9Y新型镁合金组织和性能的影响
预变形对挤压态Mg-6%Zn-1%Mn镁合金时效硬化效应和力学性能的影响（英文）
Sn对ZM61合金组织与性能的影响
半连续浇铸AZ61合金中枝晶形貌特性
期刊信息
  • 《中国有色金属学报：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国有色金属学会
  • 主编：黄伯云
  • 地址：中国长沙中南大学
  • 邮编：410083
  • 邮箱：f-xsxb@csu.edu.cn
  • 电话：0731-88830949
  • 国际标准刊号：ISSN：1003-6326
  • 国内统一刊号：ISSN：43-1239/TG
  • 邮发代号:42-317
  • 获奖情况:
  • 国家“双百”期刊,第二届全国优秀科技期刊评比二等奖,中国有色金属工业总公司优秀科技期刊一等奖
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  • 被引量:1159