MICROSTRUCTURES OF AIR ATOMIZED AL-CR POWDERS AND THE MECHANICAL-PROPERTIES OF THE HOT EXTRUDED POWDERS

被引：0
|
作者：
KOBAYASHI, KF [1 ]
FUJII, K [1 ]
KUSUI, J [1 ]
KUBO, K [1 ]
机构：
[1] TOYO ALUMINUM CO LTD,HINO,SHIGA 34114,JAPAN
来源：
ZEITSCHRIFT FUR METALLKUNDE | 1995年 / 86卷 / 04期
关键词：
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Rapidly solidified Al-Cr alloys have been prepared by a gas atomization process. Microstructures were examined as a function of cooling rate and chromium content. At a cooling rate of about 10(4) K/s, solute chromium dissolved in the aluminum matrix up to about 3 at.%. The formation of icosahedral quasi-crystals during solidification prevented the further extension of the solid solubility. Hot extruded Al-2, 3 and 4 at.% Cr specimens from these powders showed 260 to 360 MPa in ultimate tensile strength at room temperature. It increased with increasing chromium content.
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页码：289 / 292
页数：4
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