STRUCTURE OF AL-CU ALLOY INGOTS SOLIDIFIED UNIDIRECTIONALLY FROM THE BOTTOM

被引：3

作者：

SATO, T ^{[1
]}

SATO, Y ^{[1
]}

机构：

[1] TOHOKU UNIV,GRAD SCH,SENDAI,MIYAGI 980,JAPAN

来源：

TRANSACTIONS OF THE JAPAN INSTITUTE OF METALS | 1982年 / 23卷 / 07期

关键词：

541 Aluminum and Alloys - 544 Copper and Alloys;

D O I：

10.2320/matertrans1960.23.388

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

INGOTS WERE MADE FROM PURE OR COMMERCIALLY PURE ALUMINUM (99. 99 MASPAL AND 99. 8 MASSPAL) SOLIDIFICATION PROCEEDED NOTONLY WITH GROWTH OF COLUMNAR CRYSTALS BUT ALSO WITH PRODUCTION OF FREE CRYSTALS WHICH BECAME COLUMNAR FREE CRYSTALS OR ENCLOSED FREE CRYSTALS. THE COLUMNAR TO EQUIAXED TRANSITION HAD A TRANSITIONAL ZONE WHICH BEGAN WITH THE PRODUCTION OF FREE CRYSTALS AND FINISHED WITH A SUFFICIENT SUPPLY TO STOP COMPETITIVE GROWTH BETWEEN FREE CRYSTALS AND COLUMNAR CRYSTALS FROM BELOW. THE MOST PROBABLE MECHANISM HETEROGENEOUS NUCLEATION IN CONSTITUTIONALLY SUPERCOOLED LIQUID.

引用

页码：388 / 397

页数：10

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