MATERIAL - 4340 (260-292 KSI) PHOSPHATIZED - HYDROGEN EMBRITTLEMENT - STUDIES OF

Abstract

The object of this study was to determine whether a newly proposed phosphating treatment would cause H2 embrittlement of 4340 steel heat treated to 260-292 ksi ultimate tensile strength. Loads for the static loading tests were calculated on a percentage basis from the average notched tensile strength val es. Microscopic examination revealed a heavier coating on the specimens treated with the 60 point solution for 5 minutes than on those treated with the 12.5 point solution for 20 minutes. 9author)

Document Details

Document Type
Technical Report
Publication Date
Jul 06, 1962
Accession Number
AD0286236

Entities

People

  • W.m. Pratt

Organizations

  • General Dynamics

Tags

DTIC Thesaurus Topics

  • Embrittlement
  • Hydrogen
  • Hydrogen Embrittlement
  • Material Degradation Processes
  • Materials
  • Mechanical Properties
  • Physical Properties
  • Strength (General)
  • Strength (Mechanics)
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Analytical Mechanics
  • Materials Science and Engineering.
  • Metallurgy