EFFECT OF PRELIMINARY DEFORMATION ON STATIC CRACK AND FATIGUE STRENGTH OF STEEL EI-726,

Abstract

The effect of extensive (up to 40 percent) plastic deformation by pulling, compression, or torsion at room temperature on the static crack and fatigue strengths of chromium-nickel-tungsten-niobium steel 1Kh14N18V2BR1 was boron additive (steel EI-726) was investigated at elevated temperatures. The steel 1Kh14N18V2BR1 was subjected to standard heat treatment: hardened at 1170 degrees, air-cooled, and tempered at 1750 degrees for 25 hours. Samples were then subjected to plastic deformation at 20 degrees or at 700 degrees. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 11, 1969
Accession Number
AD0694838

Entities

People

  • L. V. Balashov
  • V. S. Zoteev

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Air Cooled
  • Chromium
  • Compression
  • Elements
  • Group 6 Elements
  • Heat Treatment
  • Metals
  • Plastic Deformation
  • Refractory Metals
  • Standards
  • Tungsten

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy