PROCESS CONTROL. EFFECTS OF AUSTENITE CONDITION ING 17-7 PH AT 1200 F ON MECHANICAL PROPERTIES.

Abstract

Heat treatment of 0.010-, 0.050-, 0.100-, 0.150-, and 0.250-in. thicknesses of 17-7 PH at the austenite conditioning temperature of 1200 F and using either 900 F or 1050 F precipitation temperatures produced a greater deviation of mechanical properties as compared with the values obtained by the use of 1400 F conditioning tem perature. There was produced a maximum 20-25 KSI difference between the 0.010- and 0.250-in. thicknesses. The 0.050.nn. thickness material used in this test produced consistent low mechan ical properties (yield strength and ultimate tensile strength) in relationship to the other thicknesses, but these properties were well above the minimum requirements. The 0.150- and 0.250 in. thicknesses mechanical properties were lower (except elongation) with relation to the other thicknesses used. The elongation values were much higher than the elongation of the other thicknes,ss, four to five per cent increase. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 05, 1963
Accession Number
AD0416618

Entities

Organizations

  • General Dynamics

Tags

DTIC Thesaurus Topics

  • Austenite
  • Elongation
  • Heat Treatment
  • Materials
  • Mechanical Properties
  • Physical Properties
  • Precipitation
  • Strength (General)
  • Strength (Mechanics)
  • Tensile Strength
  • Thickness
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Metallurgy
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