Surface topography of superplastically bulged AA7475 and AA2090 cups
Conference
·
OSTI ID:194186
- Concurrent Technologies Corp., Johnstown, PA (United States)
Post formed surfaces of superplastically stretched domes of different shapes, i.e. hemispherical, cylindrical and conical, were studied. Large surface steps, striated bands and fibers originating from cooperative grain boundary sliding (CGBS), that is, sliding of grain groups, have been observed. These surface features have deleterious effects on surface quality and can deteriorate corrosion resistance of superplastically formed aluminum components.
- OSTI ID:
- 194186
- Report Number(s):
- CONF-950201--; ISBN 0-87339-300-7
- Country of Publication:
- United States
- Language:
- English
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