HIGH-TEMPERATURE VACUUM FATIGUE TESTING OF TYPE 316 STAINLESS STEEL AND INCONEL X WITH A RESONANCE-TYPE MACHINE,
Abstract
A new resonance-type flexural fatigue machine has been used to test Inconel X, a low damping capacity material, and Type-316 stainless steel, a high damping material, at 500 degrees and 800 degrees C. A comparison was made of the reproducibility of the data obtained by various test procedures with smooth and notched specimens. Observations were made of the type of cracking in these materials. The progression of cracking appeared to be reflected in resonant frequency changes during the test. The reproducibility of the fatigue data, in particular of the Inconel X, which has a sharp resonance, is sufficiently good to permit distinguishing environmental effects, the main purpose for which the equipment was designed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 27, 1967
- Accession Number
- AD0650934
Entities
People
- H. H. Smith
- M. R. Achter
- P. Shahinian
Organizations
- United States Naval Research Laboratory