DEVELOPMENT OF HIGH PERFORMANCE ROCKET MOTOR CASE

Abstract

The evaluation of materials for rocket motor cases was continued. Data are presented for 25 and 20% Ni steels and JLS 300 alloy. The 20% Ni steel had a better response to heat treatment than the 25% Ni steel. A limited stress corrosion study was made on resistance spot welded JLS 300 to develop comparison data. Two concentrations, 5 and 20%, boiling MgCl2 solution were used. Only one specimen showed evidence of cracking. Results of a qualitative evaluation of designs of cylindrical sections based on materials data furnished by suppliers indicated that the base material must have a strength weight ratio in excess of 1 x 10 to the 6th power, and that a cylindrical section with a preferentially oriented helical butt weld offered the best possibility of attaining an over-all chamber strength to density ratio of 1 x 10 to the 6th power or better.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1961
Accession Number
AD0258305

Entities

People

  • R. C. Dethloff

Tags

Communities of Interest

  • Engineered Resilient Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alloys
  • Heat Treatment
  • Joints
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Modulus Of Elasticity
  • Munitions
  • Nickel Steels
  • Rocket Engines
  • Stress Corrosion
  • Tensile Properties
  • Tensile Strength
  • Tensile Testing
  • Test And Evaluation
  • Welding
  • Welds

Fields of Study

  • Materials science

Readers

  • Combustion and Flow Dynamics.
  • Materials Science and Engineering.
  • Structural Dynamics.