STRUCTURE AND MECHANICAL PROPERTIES OF ALLOYS AL5, AL7 AND AL9, ALLOYED WITH REM.

被引：0
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作者：
Al'tman, M.B.
Stromskaya, N.P.
Gus'kova, N.V.
Prostova, N.I.
机构：
来源：
Soviet Castings Technology (English Translation of Liteinoe Proizvodstvo) | 1986年 / 06期
关键词：
ALUMINUM COPPER ALLOYS - Mechanical Properties - ALUMINUM METALLOGRAPHY - Microstructures - ALUMINUM SILICON COPPER ALLOYS - Mechanical Properties - HEAT TREATMENT - Quenching;
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摘要：
The authors investigated the influence of yttrium and REM in the cerium subgroup on the mechanical properties in the systems Al-Si (Al9, Al-Si-Cu (AL5) and Al-Cu (AL7). It was established that as the Ce addition to alloys AL9, AL5 and AL7 is raised from 0. 07 to 0. 41% the mechanical properties are lowered in both the cast condition and after quenching and aging. However, up to 0. 5% Nd or Pr can be added to alloys AL5 and AL9 with no significant effect on mechanical properties. On the basis of these findings, adding up to 0. 2% Y in AL9-type and AL7 alloys which contain silicon is recommended.
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页码：15 / 18
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