CELLULAR PRECIPITATION AND DISCONTINUOUS COARSENING OF CELLULAR PRECIPITATE IN AN AL-29 AT-PERCENT-ZN ALLOY

被引：55

作者：

JU, CP ^{[1
]}

FOURNELLE, RA ^{[1
]}

机构：

[1] MARQUETTE UNIV, DEPT MECH ENGN, MILWAUKEE, WI 53233 USA

来源：

ACTA METALLURGICA | 1985年 / 33卷 / 01期

关键词：

ALUMINUM METALLOGRAPHY - Precipitation;

D O I：

10.1016/0001-6160(85)90220-2

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The morphology and growth kinetics have been investigated at temperatures ranging from 323 to 523 K (50 to 250 degree C) by light microscopy, electron microscopy and X-ray diffraction. At all aging temperatures the alloy decomposed by a reaction which resulted in a lamellar structure of aluminum rich and zinc rich solid solutions. The discontinuous coarsening reaction occurred at a slower rate and resulted in a coarser structure. Analysis of growth kinetics suggests control by grain boundary diffusivity.

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页码：71 / 81

页数：11

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