DETERMINATION OF GRAIN DENSITY IN SPACE-FILLING GEOMETRIES FROM MEASURABLE 2-DIMENSIONAL PARAMETERS

被引：17

作者：

HANSON, KL

机构：

[1] Materials and Molecular Research Division, Lawrence Berkeley Laboratory, University of California, Berkeley

来源：

ACTA METALLURGICA | 1979年 / 27卷 / 04期

关键词：

D O I：

10.1016/0001-6160(79)90003-8

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A procedure for determining grain density, Nv, in space-filling geometries from measurable two-dimensional parameters is presented. A variety of microstructure morphologies are considered and all tend to obey Nv = (2.4150√a - 1.4552l)-3 where ā = average grain area on a random two-dimensional section and l̄ = the average intercept length of a random test line with grain surfaces. This relationship is verified by comparison with many computer-simulated microstructures and various regular space-filling geometries. Theoretical considerations are presented suggesting why this basic relationship is expected. A practical method for applying this relationship is described. An extension of this procedure to non-space-filling geometries is discussed. © 1979.

引用

页码：515 / 521

页数：7