Effect of Elevated Temperature Tensile Testing of AF1410 Steel
Abstract
The effect of thermal and mechanical transients on the material properties of AF1410 steel for applications in large caliber ballistic weapons was investigated. The Gleeble Model 1500 thermomechanical simulation device was used for the evaluation of elevated-temperature mechanical properties and simulated firing cycles. The tensile properties and the age-hardening response were measured, as a function of temperature, for one heat of AF1410 steel. The results of the investigation showed that the ultimate tensile strength, yield strength, and true fracture stress decreased linearly with increasing temperature, up to 800 F. Young's modulus decreased with increasing temperature, while Poisson's ratio remained unchanged. The material exhibited stress relaxation at elevated temperatures, but not at room temperature, when loaded to 80% of its yield strength. It was found that the yield strength increased when the material had been previously aged at the same temperature.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1991
- Accession Number
- ADA242107
Entities
People
- D. Peek
- E. Nippes
- E. Troiano
Organizations
- United States Army Armament Research, Development and Engineering Center