Mechanical Property Characterization of VascoMax T-250.

Abstract

This report addresses a mechanical property characterization of VascoMax T-250 in the form of a 3-inch-diameter forged bar. Data were generated for aging temperatures of 850, 900, and 950 F and for aging times of 3, 4, 8 hours. Parameters addressed were hardness, tensile properties, Charpy V-notch impact energy and fracture toughness. Microstructural aspects were also addressed. Results indicate that for the heat treatments investigated the tensile strength increases with increasing aging temperature and time. Fracture toughness (k sub IQ) increases with aging temperature, and Charpy energy is the highest in the 950 F aged condition. Based on these findings the 950 F aging temperature results in the maximum tensile strength and toughness properties for the material in 3-inch-diameter bar form. Discrepancies in some of the tensile strength data and tensile fracture appearances are attributed to exogenous inclusions peculiar to this heat.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1986
Accession Number
ADA172891

Entities

People

  • Charles F. Hickey Jr.
  • Timothy S. Thomas

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aircrafts
  • Diameters
  • Elastic Properties
  • Hardness
  • Heat Treatment
  • Information Processing
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Military Research
  • Modulus Of Elasticity
  • Tensile Properties
  • Tensile Strength
  • Test And Evaluation

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Theoretical Analysis.