EVALUATION OF HIGH-NICKEL STEEL FOR APPLICATION IN LARGE BOOSTER MOTOR FABRICATION

Abstract

The results of investigations conducted to deter mine the mechanical and metallurgical properties and weldability of the 18%-nickel maraging alloy steels. The information in this report relates specifically to the results of studies conducted to: (1) establish the mechanical and metallurg ical properties, including fracture toughness, of parent-metal 18%-nickel alloy steels processed by different melting techniques; (2) determine the effect of varying weld-wire compositions on the mechanical and metallurgical properties of TIG-welded 1/2-in.-thick material; (3) determine the effect of the MIG and submerged-arc process on the mechanical and metallurgical properties of welded 1/2-in.-thick material; and (4) deter mine the fracture toughness of weld deposits and heat-affected zones. The selection of an optimum material was based on the results of these studies. A supplemental program, which has increased the scope of fracture-toughness testing, was authorized. Progress made on this supplemental program is also presented.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1963
Accession Number
AD0404300

Entities

Organizations

  • Aerojet Rocketdyne Holdings

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Chemical Analysis
  • Chemistry
  • Fabrication
  • Impact Tests
  • Low Alloy Steels
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Nickel Steels
  • Procurement
  • Tensile Properties
  • Tensile Strength
  • Test And Evaluation
  • Test Methods
  • United States
  • Welds

Fields of Study

  • Materials science

Readers

  • Defense Financial Management and Audit.
  • Metallurgy