Microstructural evolution in ball-milled iron powder

被引：7

作者：

Goodrich, DM ^{[1
]}

Atzmon, M ^{[1
]}

机构：

[1] UNIV MICHIGAN,DEPT NUCL ENGN & MAT SCI & ENGN,ANN ARBOR,MI 48109

来源：

METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS, PTS 1 AND 2 | 1996年 / 225卷

关键词：

ball milling; nanocrystals; iron;

D O I：

10.4028/www.scientific.net/MSF.225-227.223

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temporal evolution of grain size and strain during low-energy ball milling of Fe powder has been determined for different temperatures and milling intensities. The steady-state grain size has an apparent activation enthalpy of 0.025 eV. Analysis of the rate law for grain-size evolution shows that this low value is a result of competition between grain refinement and growth, both of which are temperature dependent and have similar activation energies.

引用

页码：223 / 227

页数：5

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