Grain refinement of Fe75M25 alloys at low undercooling

被引：22

作者：

Chen, Y. Z. ^{[1
]}

Liu, F. ^{[1
]}

Yang, G. C. ^{[1
]}

Liu, N. ^{[1
]}

Yang, C. L. ^{[1
]}

Xie, H. ^{[1
]}

Zhou, Y. H. ^{[1
]}

机构：

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

来源：

MATERIALS CHARACTERIZATION | 2008年 / 59卷 / 04期

基金：

中国国家自然科学基金;

关键词：

microstructure; undercooling; grain refinement; solidification; Fe-Ni alloy;

D O I：

10.1016/j.matchar.2007.02.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The grain refinement of Fe75Ni25 alloys at low undercooling was investigated by fluxing and cyclic superheating methods. Grain refinement was observed if the initial undercooling exceeds 56 K. Based on theoretical calculations and experimental observations, the grain refinement mechanism was achieved, and can be attributed to the breakup of dendrite-skeletons by remelting. (c) 2007 Elsevier Inc. All rights reserved.

引用

页码：412 / 416

页数：5

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