EFFECT OF DECARBURIZATION ON NOTCH SENSITIVITY AND FATIGUE-CRACK- PROPAGATION RATES IN 12 MOV STAINLESS-STEEL SHEET

Abstract

Surface decarburization reduced the room-temperature notch sensitivity of the material and also reduced the ultimate tensile strength from 251 ksi to 210 ksi. The residual static strength of decarburized specimens containing fatigue cracks was considerably greater than that of normal specimens tested under the same conditions. Decarburization had no significant influence on the rate of fatigue-crack propagation at the stress levels considered.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1961
Accession Number
AD0265886

Entities

People

  • Arthur J. Mcevily Jr.
  • William H. Herrnstein Iii

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alloys
  • Aluminum Alloys
  • Crack Propagation
  • Cracks
  • Government Procurement
  • Materials
  • Mechanical Properties
  • Modulus Of Elasticity
  • Notch Sensitivity
  • Physical Properties
  • Sensitivity
  • Stainless Steel
  • Standards
  • Stress Concentration
  • Stress Strain Relations
  • Stresses
  • Tensile Strength

Readers

  • Materials Science and Engineering.
  • Metallurgy
  • Structural Health Monitoring of Composite Structures.