"New Specimen Design for Studying the Growth of Small Fatigue Cracks wi" by Blair London
 

Abstract

The study of small surface fatigue cracks in AISI 4140 quenched and tempered steel by a nondestructive surface acoustic wave technique is summarized. A novel cantilevered bending, plate-type fatigue specimen is described that is compatible with the acoustic method. Small cracks are initiated from a 25-μm deep surface pit produced by an electrospark machine. The importance of studying these

Disciplines

Materials Science and Engineering

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URL: https://digitalcommons.calpoly.edu/mate_fac/108