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过冷Fe—Co合金的包晶凝固
  • ISSN号：1005-023X
  • 期刊名称：《材料导报》
  • 时间：0
  • 分类：TG113.1[金属学及工艺—物理冶金;金属学及工艺—金属学] TG146.1[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]江苏科技大学冶金与材料工程学院,张家港215600, [2]西北工业大学凝固技术国家重点实验室,西安710072
  • 相关基金：国家自然科学基金（50501020;50771084）;江苏省高校自然科学基金（09KJB30004）
作者： 刘宁[1,2], 杨根仓[2], 刘峰[2], 杨长林[2]
关键词： Fe-Co合金, 过冷, 凝固, 包晶反应, 包晶转变, Fe-Co alloy, undercooling, solidification, periteetic reaction, periteetic transformation
中文摘要：

采用熔融玻璃净化法使Fe-Co包晶合金实现了深过冷快速凝固。当熔体过冷度较小时，Fe-Co包晶合金的凝固组织为典型的包晶组织。借助电子探针分析和DTA差热分析，证实了非平衡条件下Fe-Co包晶合金凝固过程中发生了包晶反应和包晶转变。研究表明，深过冷Fe-Co包晶舍金的非平衡凝固过程从理论上可以划分为4个阶段：初生δ相的形核与生长、包晶反应、包晶转变和γ相的外延生长。

英文摘要：

Adopting molten fluxing purification technology, rapid solidification of undercooled Fe-Co peritectic alloy was investigated. At low undercooling range, the microstructure of undercooled Fe-Co peritectic alloy was found to be typical peritectic morphology. In the presence of electron probing analysis and differential thermal analysis, peritectic reaction and peritectic transformation were verified to occur in the undercooled Fe-Co melt. Finally, the peritectic solidification process of undercooled Fe-Co peritectic alloys can be classified as the following four stages： the nucleation and growth of primary δ phase, peritectic reaction between primary δ phase and liquids, peritectic transformation and the extensive growth of γ phase.

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期刊信息
  • 《材料导报：纳米与新材料专辑》
  • 主管单位:重庆西南信息有限公司(原科技部西南信息中心)
  • 主办单位:重庆西南信息有限公司(原科技部西南信息中心)
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  • 地址：重庆市渝北区洪湖西路18号
  • 邮编：401121
  • 邮箱：matreved@163.com
  • 电话：023-67398525
  • 国际标准刊号：ISSN：1005-023X
  • 国内统一刊号：ISSN：50-1078/TB
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:3397