EFFECT OF HYDROSTATIC-PRESSURE ON CAVITATION IN SUPERPLASTIC ALUMINUM-ALLOYS

被引：124

作者：

PILLING, J

RIDLEY, N

机构：

[1] Univ of Manchester/UMIST, Joint Dep, of Metallurgy & Materials, Science, Manchester, Engl, Univ of Manchester/UMIST, Joint Dep of Metallurgy & Materials Science, Manchester, Engl

来源：

ACTA METALLURGICA | 1986年 / 34卷 / 04期

关键词：

ALUMINUM COPPER ALLOYS - High Pressure Effects - ALUMINUM LITHIUM COPPER ALLOYS - High Pressure Effects - ALUMINUM METALLOGRAPHY - Microstructures - ALUMINUM ZINC ALLOYS - High Pressure Effects - CAVITATION;

D O I：

10.1016/0001-6160(86)90182-3

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Cavitation during superplastic flow has been examined in Supral 220, Al-7475E and Al-Li-Cu alloys strained in uni-axial and bi-axial tension with varying superimposed hydrostatic pressures. The rate of increase of the volume fraction of cavities with strain can be decreased by increasing the superimposed pressure. The difference between the magnitude of experimentally determined cavity growth rate factors and smaller predicted values arises from the combined effects of non-equilibrium cavity growth, coalescence and the decrease in strain rate sensitivity with strain.

引用

页码：669 / 679

页数：11

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