Dynamic abnormal grain growth: A new method to produce single crystals

被引：71

作者：

Ciulik, J. ^{[1
]}

Taleff, E. M. ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA

来源：

SCRIPTA MATERIALIA | 2009年 / 61卷 / 09期

基金：

美国国家科学基金会;

关键词：

Abnormal grain growth; Molybdenum; X-ray diffraction; Electron backscattered diffraction; SECONDARY RECRYSTALLIZATION; DEFORMATION; SHEET;

D O I：

10.1016/j.scriptamat.2009.07.021

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Dynamic abnormal grain growth (DAGG) is a newly discovered phenomenon which can be used to produce large single crystals from polycrystalline material in the solid state at temperatures above approximately half the melting temperature. The unique aspect of DAGG, compared to previously understood abnormal grain growth phenomena, is the requirement of plastic straining for initiation and propagation of abnormal grain growth. Our findings demonstrate that DAGG can be used to produce large single crystals of molybdenum in the solid state. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：895 / 898

页数：4

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