SYMPOSIA PAPER Published: 01 January 1976
STP29189S

Comparison of Inclusion Distributions on Fracture Surfaces and in the Bulk of Carbon-Manganese Weldments

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Techniques are developed for determining the spatial and size distributions of spherical inclusions in mild steel. The relations between these distributions as found on electropolished surfaces and as found on fracture surfaces are determined. It is shown that the first neighbor spatial distributions on electropolished surfaces can be described analytically. The average dimple size on a fracture surface is always greater than the most probable first neighbor spacing. The inclusion size distributions both on electropolished and fracture surfaces are shown to be log-normal. The mean inclusion size on a fracture surface is always smaller than that on an electropolished surface. These variations are believed to arise from the nature of the fracture process.

Author Information

Passoja, DE
University Carbide Corporation, Tarrytown, N. Y.
Hill, DC
University Carbide Corporation, Tarrytown, N. Y.
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Details
Developed by Committee: E08
Pages: 30–46
DOI: 10.1520/STP29189S
ISBN-EB: 978-0-8031-4675-4
ISBN-13: 978-0-8031-0360-3