The Effect of Microcracking in Martensite on the Deformation and Fracture Behavior of Fe-C Alloys and Commercial Steels.

Abstract

The effect of tempering on microcrack reduction was examined in an Fe-1.22C alloy. The major reduction occurred before transformation of the retained austenite and was attributed to tempering-induced plastic deformation. Fracture toughness of 52100 steel was measured according to ASTM E-399 and a transition from trans to intergranular fracture was noted with increasing austenitizing temperature. Auger-electron analysis showed high C and P present on intergranular fracture surfaces of carburized 8620 steel.

Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1975
Accession Number
ADA020494

Entities

People

  • George Krauss

Organizations

  • Lehigh University

Tags

DTIC Thesaurus Topics

  • Alloys
  • Auger Electrons
  • Austenite
  • Colorado
  • Cooperation
  • Electrons
  • Martensite
  • Microcracking
  • Plastic Deformation
  • Steel
  • Tempering
  • Toughness
  • Transitions

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Microelectronics