EFFECT OF FLAME AND MECHANICAL STRAIGHTENING ON MATERIAL PROPERTIES OF WELDMENTS

Abstract

An experimental study was conducted to determine the effects of mechanical straightening and flame straightening on the properties of steels used in shipbuilding. The steels investigated during this program included an ordinary carbon steel (ABS-B), two low-alloy, high-strength steels (A441 and A537), and a quenched and tempered steel (A517, Grade A). The removal of distortion in unwelded and welded test plates was accomplished by (1) mechanical straightening at room temperature, 1000F, 1300F, and (2) flame straightening in the temperature ranges of 1100-1200F and 1300-1400F. Controlled amounts of distortion were provided in unwelded plate by mechanical bending; distortion in welded plates was provided by jigging the restraint control. Drop-weight tear tests were conducted to assess the effect of the straightening parameters on the notch-toughness behavior of the respective steels.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1970
Accession Number
AD0710521

Entities

People

  • H. E. Pattee
  • R. E. Monroe
  • R. M. Evans

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Alloys
  • Carbon Steels
  • Coast Guard
  • Construction
  • Contracts
  • Fabrication
  • Ferrium
  • Material Degradation Processes
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Notch Toughness
  • Ship Hulls
  • Shipbuilding
  • Tensile Strength
  • Toughness
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Metallurgy