Elevated Temperature Properties of Steels.
ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS
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ASTM A723 and D6AC gun steels were evaluated for various high-temperature physical and mechanical properties, including specific heat, thermal expansion, stress relaxation, tensile, Youngs modulus. and Poissons ratio. Most tests were conducted at ambient temperature, 200 deg C, 300 deg C. and 400 deg C. A creep law was generated from the stress relaxation data that predicted the amount of creep strain at a given temperature as a function of stress and time. These data can be used, for example,to predict the amount of autofrettage stress lost at elevated temperatures and to establish safe gun tube service lives for various firing scenarios.
- Properties of Metals and Alloys
- Inorganic Chemistry