STUDY OF THE TRANSFORMATIONAL CHARACTERISTICS AND THE WELDABILITY OF HY-80 STEEL.

Abstract

Work was directed toward: (1) Completion of the continuous cooling transformation diagram for the HY-80 rich analysis. (2) Investigation of cold-cracking behavior of HY-80 rich analysis by electrolytic charging of hydrogen into notched tensile specimens previously treated using the R.P.I. synthetic specimen technique to produce a grain coarsened structure similar to that observed in a weld heat affected zone. (3) Determination of the hot ductility behavior of HY-80 rich analysis (crack sensitive history), HY-80 lean analysis (crack sensitive history). (4) Examination of the short time stress-rupture behavior of the four steels mentioned above in the grain-coarsened condition, both at elevated temperature (1900F) and at commonly used tempering temperatures. (5) Studies of the impact properties of specimens synthetically treated to produce a grain-coarsened heat-affected zone structure and then furnace stress-relieved for 1 hour at various temperatures. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1962
Accession Number
AD0636683

Entities

Organizations

  • Rensselaer Polytechnic Institute

Tags

DTIC Thesaurus Topics

  • Ductility
  • Elements
  • Group 1 Elements
  • Heat Treatment
  • Hydrogen
  • Joining
  • Mechanical Properties
  • Nonmetals
  • Tempering
  • Weldability
  • Welds

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Metallurgy
  • Powder metallurgy of Titanium alloys.