SYMPOSIA PAPER Published: 01 January 1976
STP29198S

Cyclic Plasticity of Copper at the Surface and in the Interior

Source

The cyclic plastic strain ranges were determined in the surface layers (material containing persistent slip bands) and inside the specimens. In the experiments several stress amplitudes, several average grain sizes, and two environments were used. The cyclic plastic strain range inside a specimen was constant throughout the fatigue life, but in the surface layer it was high early in the life and decreased throughout the life. The largest cyclic plastic strains in the surface layer were about two orders of magnitude larger than those inside the specimen. The mechanical surface effect involved a layer of metal with a thickness of about four average grains.

Author Information

Nakano, Y
Kawasaki Steel Co., Japan
Sandor, BI
The University of Wisconsin, Madison, Wis.
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Details
Developed by Committee: E08
Pages: 193–204
DOI: 10.1520/STP29198S
ISBN-EB: 978-0-8031-4675-4
ISBN-13: 978-0-8031-0360-3