Cavity coalescence in superplastic deformation

Journal Article · Sun Jan 01 00:00:00 EST 1984 · Acta Metall.; (United States)

DOI:https://doi.org/10.1016/0001-6160(84)90199-8· OSTI ID:6270294

Stowell, M J; Livesey, D W; Ridley, N

An analysis of the probability distribution function of particles randomly dispersed in a solid has been applied to cavitation during superplastic deformation and a method of predicting cavity coalescence developed. Cavity size distribution data were obtained from two microduplex nickel-silver alloys deformed superplastically to various extents at elevated temperature, and compared to theoretical predictions. Excellent agreement occurred for small void sizes but the model underestimated the number of voids in the largest size groups. It is argued that the discrepancy results from a combination of effects due to non-random cavity distributions and to enhanced growth rates and incomplete spheroidization of the largest cavities.

• Research Organization: T.I. Research Laboratories, Hinxton Hall, Hinxton, Saffron Walden, Essex
• OSTI ID: 6270294
• Journal Information: Acta Metall.; (United States), Vol. 32:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CAVITIES
COALESCENCE
NICKEL ALLOYS
DEFORMATION
SILVER ALLOYS
BINARY ALLOY SYSTEMS
DISTRIBUTION FUNCTIONS
GRAIN GROWTH
METALLOGRAPHY
PLASTICITY
SIZE
ALLOY SYSTEMS
ALLOYS
FUNCTIONS
MECHANICAL PROPERTIES
360103* - Metals & Alloys- Mechanical Properties
360102 - Metals & Alloys- Structure & Phase Studies