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极端非平衡条件下过冷熔体枝晶生长模型
  • ISSN号：0258-7076
  • 期刊名称：稀有金属
  • 时间：0
  • 页码：41-43
  • 语言：中文
  • 分类：TG146[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]西北工业大学凝固技术国家重点实验室,陕西,西安,710072 西北工业大学凝固技术国家重点实验室,陕西,西安,710072 西北工业大学凝固技术国家重点实验室,陕西,西安,710072 西北工业大学凝固技术国家重点实验室,陕西,西安,710072
  • 相关基金：新世纪优秀人才支持计划(NCET-05-870); 国家自然科学基金(50501020和50395103); 西北工业大学青年科技创新基金资助项目
  • 相关项目：单相固溶体合金非平衡液/固相变与固态转变的统一理论
作者： 曹杨|刘峰|王海丰|陈正|
关键词： 枝晶生长, 弛豫效应, 过冷, 模型
中文摘要：

考虑界面非平衡、弯曲界面对驱动力的影响,并且摒弃液固相线线性假设,得到了界面移动热力学驱动力;从液固相线非线性条件下的动力学边界条件出发,对稳定性判据进行了修正;在溶质截留模型中,综合考虑弛豫效应和非线性液固相线的影响,对Aziz模型进行了修正;基于相图分析,得到过冷度分配.综合以上分析,在非线性液固相线基础上,得到了新的二元过冷熔体自由枝晶生长模型.将该模型应用到Ni-0.7%B合金中,结果表明无论从定性上还是定量上都与实验结果吻合得很好.

同期刊论文项目
极端非平衡凝固条件下亚稳相形成规律
期刊论文 80
单相固溶体合金非平衡液/固相变与固态转变的统一理论
期刊论文 65 获奖 2
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期刊信息
  • 《稀有金属》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:北京有色金属研究总院
  • 主编：屠海令
  • 地址：北京新街口外大街2号
  • 邮编：100088
  • 邮箱：xxsf@grinm.com
  • 电话：010-82241917 62014832
  • 国际标准刊号：ISSN：0258-7076
  • 国内统一刊号：ISSN：11-2111/TF
  • 邮发代号:82-167
  • 获奖情况:
  • 中文核心期刊,冶金工业类核心期刊,中国科技论文统计源期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:13688