Accession Number : ADA317919

Title :   Elevated Temperature Properties of Steels.

Descriptive Note : Final rept.,

Corporate Author : ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS

Personal Author(s) : Vigilante, G. N. ; Fish, A. ; O'Hara, G. P. ; Crayon, D. ; Hickey, T.

PDF Url : ADA317919

Report Date : AUG 1996

Pagination or Media Count : 34

Abstract : ASTM A723 and D6AC gun steels were evaluated for various high-temperature physical and mechanical properties, including specific heat, thermal expansion, stress relaxation, tensile, Young's modulus. and Poisson's 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.

Descriptors :   *GUN BARRELS, *HIGH TEMPERATURE, *STEEL, STRESSES, TEMPERATURE, MECHANICAL PROPERTIES, PHYSICAL PROPERTIES, TENSILE PROPERTIES, MODULUS OF ELASTICITY, STRAIN(MECHANICS), THERMAL EXPANSION, SAFETY, CREEP, SPECIFIC HEAT, POISSON RATIO, AUTOFRETTAGE, STRESS RELAXATION.

Subject Categories : Properties of Metals and Alloys
      Inorganic Chemistry
      Guns
      Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE