Evaluation of Steel Alloys Subjected to High-Frequency Flexural Motion.
NAVY ELECTRONICS LAB SAN DIEGO CALIF
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The performance of the vibrating diaphragms which serve as the sound source in long-range active sonar systems and must be driven at large amplitudes is limited by the strength of the materials of which they are constructed. In an experimental sound source constructed for use at the Navy Electronics Laboratory the better known steels of the corrosion-resistant types proved disappointing, and considerable research and testing has been done to determine the best material for this application. An alloy steel of extreme strength and unusual fatigue characteristics was needed to overcome the relatively short life expectancy of the original materials used in the diaphragms. The alloy to be described here is available as 5 percent chromium steel in the moderate price range, as compared with the super alloys normally suggested for applications of severe mechanical abuse. Author
- Metallurgy and Metallography
- Machinery and Tools
- Acoustic Detection and Detectors