Fundamental Studies on Phase Transformations and Mechanical Properties of Fusion Welds in Advanced Naval Steels

Abstract

NUCu-140 and 10 wt% Ni steel were developed as candidate materials for use in naval and structural applications. However, prior to this research project, a fundamental understanding of the phase transformation behavior under the high heating and cooling rates associated with welding thermal cycles was not available for these alloys. For NUCu-140, the potential use of multiple thermal cycles was investigated with HAZ simulations using a Gleeble thermo-mechanical simulator. For 10 wt% Ni steel, the effect of rapid heating and cooling rates associated with welding thermal cycles was established for the first time.

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Document Details

Document Type
Technical Report
Publication Date
Jul 31, 2017
Accession Number
AD1039748

Entities

People

  • John DuPont

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Arc Welding
  • Chemistry
  • Energy
  • Engineering
  • Gas Tungsten Arc Welding
  • Heat Treatment
  • Materials
  • Materials Science
  • Mechanical Properties
  • Military Research
  • Phase Transformations
  • Resistance
  • Steel
  • Welding
  • Welds
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Powder metallurgy of Titanium alloys.
  • Thermal Physics or Thermal Science.