Electromagnetic shaping and solidification control of Ni-base superalloys under vacuum

被引：21

作者：

Fu, HZ ^{[1
]}

Shen, J ^{[1
]}

Liu, L ^{[1
]}

Hao, QT ^{[1
]}

Li, SM ^{[1
]}

Li, JS ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2004年 / 148卷 / 01期

基金：

中国国家自然科学基金;

关键词：

electromagnetic shaping; directional solidification; superalloys; turbine blade;

D O I：

10.1016/j.jmatprotec.2003.11.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper aims to introduce two novel techniques of electromagnetic confinement to process Ni-base alloys for castings and ingots with shaped cross-section. Based on systematically investigation on the distribution of magnetic and temperature fields and their coupling effect, a containerless electromagnetic shaping of aluminum alloy and superalloys samples was successfully realized by means of a specially designed apparatus with dual induction coils and dual-frequencies and by using a tailor-made crystallizer under vacuum condition. A near-net shaped turbine blade of superalloys with directionally solidified microstructure by electromagnetic soft-contact confinement technology was also obtained. The dynamic stability and profile behavior of melt and temperature gradient during electromagnetic confinement are presented. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：25 / 29

页数：5

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