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来流对Al-Cu合金三维树枝晶生长的影响
  • ISSN号：0412-1961
  • 期刊名称：Jinshu Xuebao/acta Metallurgica Sinica
  • 时间：2012.5.5
  • 页码：615-620
  • 分类：TG111.4[金属学及工艺—物理冶金;金属学及工艺—金属学] TG146.21[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]
  • 作者机构：[1]沈阳理工大学材料科学与工程学院, [2]中国科学院金属研究所
  • 相关基金：国家自然科学基金资助项目（51071159,u0837601）
  • 相关项目：激光表面处理条件下偏晶合金熔化与凝固行为研究
作者： 张显飞|赵九洲|
关键词： 树枝晶, 三维元胞自动机, 流动
中文摘要：

应用三维元胞自动机模型,耦合求解三维流场控制方程,模拟了来流对Al-Cu合金三维树枝晶生长的影响。结果表明,在来流作用下,背流侧二次枝晶受到抑制,迎流侧二次枝晶发达,枝晶尖端生长速度随来流速度增大而增大,枝晶尖端半径随来流速度增大而减小;与来流方向垂直的枝晶向迎流方向偏转,枝晶尖端来流与背流两侧呈不对称性,随着来流速度增大枝晶尖端不对称性增强。迎流侧枝晶尖端Péclet数随着来流速度的增大而增大。

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激光表面处理条件下偏晶合金熔化与凝固行为研究
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期刊信息
  • 《金属学报》
  • 中国科技核心期刊
  • 主管单位:中国科学协术协会
  • 主办单位:中国金属学会
  • 主编：柯俊
  • 地址：沈阳文化路72号
  • 邮编：110016
  • 邮箱：shxiao@imr.ac.cn
  • 电话：024-23971286
  • 国际标准刊号：ISSN：0412-1961
  • 国内统一刊号：ISSN：21-1139/TG
  • 邮发代号:2-361
  • 获奖情况:
  • 第一、二届全国优秀科技期刊评比一等奖,第一、二、三届国家期刊奖,国家期刊方阵"双高"期刊,第一、二、三届中国科学院科技期刊评比一等奖,中国科学院优秀期刊特别奖,第一、二、三、五届中国科协优秀科技期刊评比一等奖,中国科协精品期刊工程A类、B类,第一、二、三、四、五届中国百种杰出学术期刊,首届出版政府奖
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  • 被引量:26785