受控凝固及其应用研究进展

doi:10.11900/0412.1961.2017.00541

金属学报

2018, Vol. 54

Issue (5): 669-681 DOI: 10.11900/0412.1961.2017.00541

金属材料的凝固专刊

本期目录 | 过刊浏览

受控凝固及其应用研究进展

陈光¹(

), 郑功¹, 祁志祥¹, 张锦鹏¹, 李沛¹, 成家林², 张中武³

1 南京理工大学先进金属与金属间化合物材料技术工业和信息化部重点实验室、材料评价与设计教育部工程研究中心南京 210094
2 南京工程学院材料工程学院南京 211167
3 哈尔滨工程大学超轻材料与表面技术教育部重点实验室哈尔滨 150001

Research Progress on Controlled Solidificationand Its Applications

Guang CHEN¹(

), Gong ZHENG¹, Zhixiang QI¹, Jinpeng ZHANG¹, Pei LI¹, Jialin CHENG², Zhongwu ZHANG³

1 Engineering Research Center of Materials Behavior and Design, Ministry of Education, MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology,Nanjing University of Science and Technology, Nanjing 210094, China
2 School of Materials Engineering, Nanjing Institute of Technology, Nanjing 211167, China
3 Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China

引用本文:

陈光, 郑功, 祁志祥, 张锦鹏, 李沛, 成家林, 张中武. 受控凝固及其应用研究进展[J]. 金属学报, 2018, 54(5): 669-681.
Guang CHEN, Gong ZHENG, Zhixiang QI, Jinpeng ZHANG, Pei LI, Jialin CHENG, Zhongwu ZHANG. Research Progress on Controlled Solidificationand Its Applications[J]. Acta Metall Sin, 2018, 54(5): 669-681.

全文: PDF(14927 KB) HTML

摘要:

本文对作者所在课题组近20年来开展的受控凝固研究与应用工作进行了综述,主要包括凝固前母相的熔体热处理、液/固两相区的半固态处理、非平衡材料的快冷顺序凝固、半固态快冷顺序凝固等,以及将受控凝固扩展到固态相变阶段的定向热处理、定向凝固与定向固态相变相结合的“双控”材料制备新技术等。同时,展望了受控凝固技术及其应用今后的发展方向。

关键词 ：受控凝固, 熔体热处理, 半固态快冷顺序凝固, 定向凝固, 定向热处理

Abstract：

This paper reviews the study of our group on controlled solidification and its applications in recent 20 years, including melt heat treatment before solidification, semi-solid processing between liquidus and solidus, rapid progressive solidification of nonequilibrium materials, semi-solid progressive solidification, and directional heat treatment in solid phase transformation. Furthermore, a new technique of material preparation is proposed with the combination of directional solidification and directional heat treatment. In addition, an outlook of controlled solidification technology and its applications are provided.

Key words： controlled solidification melt heat treatment semi-solid progressive solidification directional solidification directional heat treatment

收稿日期: 2017-12-20

ZTFLH:

TG244

基金资助:资助项目国家自然科学基金项目Nos.51731006、51771093和51571117,中国博士后科学基金项目No.2017M620212,博士后创新人才支持计划项目No.BX201700120

作者简介:

作者简介陈光,男,1962年生,教授

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https://www.ams.org.cn/CN/10.11900/0412.1961.2017.00541 或 https://www.ams.org.cn/CN/Y2018/V54/I5/669

图1 熔体过热温度对定向凝固镍基高温合金液/固界面影响规律[17]

图2 熔体热处理循环次数对Ti-48Al-2Cr-2Nb合金宏观组织的影响[23]

图3 半固态处理制备金属玻璃复合材料的组织和室温压缩应力-应变曲线[24]

图4 Zr-块体金属玻璃(BMG)复合材料850 ℃保温不同时间的显微组织[30]

图5 等效直径Deq、平均形状因子SF和比表面积的倒数Sv-1随保温时间变化曲线[30]

图6 铜模铸造和快冷顺序凝固制备的Mg-BMG复合材料的显微组织[32]

图7 抽拉速率对快冷顺序凝固Zr-BMG复合材料组织和性能的影响[34]

图8 普通渗流铸造和快冷顺序凝固制备的Wf/Zr-BMG复合材料

图9 半固态快冷顺序凝固(SSPS)技术制备的11 mm直径Zr-BMG复合材料的宏观形貌及表面、心部的显微组织[34,35]

图10 SSPS技术制备的Zr-BMG复合材料室温拉伸工程应力-应变曲线[35]

图11 热区温度为900 ℃时不同抽拉速率下定向热处理后纯Fe的显微组织[77]

图12 不同初生相TiAl合金片层取向和晶体取向之间的关系[87]

图13 平行取向全片层TiAl合金定向组织示意图

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