New procedure of X-ray line profile analysis applied to study the dislocation structure and subgrain size-distributions in fatigued MANET steel

T. Ungár, M. Victoria, P. Marmy, P. Hanák, G. Szenes

Research output: Contribution to journalConference article

28 Citations (Scopus)

Abstract

A new procedure of X-ray line profile analysis based on the dislocation model of strain anisotropy has been applied. The dislocation densities and the subgrain size-distributions in a MANET steel are investigated in the normal condition and after cyclic deformation at room temperature and 250 °C. It has been found that the average dislocation density in the normal condition is rather high and does not change much after fatigue at room temperature. After fatigue at 250 °C, however, the dislocation density was found to increase considerably, probably due to the strong temperature dependence of the mobility of dislocation in a martensitic steel. Even though the subgrain size-distribution was found not to change much on fatigue at room temperature, it widened however after fatigue at 250 °C.

Original languageEnglish
Pages (from-to)278-282
Number of pages5
JournalJournal of Nuclear Materials
Volume276
Issue number1
DOIs
Publication statusPublished - Jan 1 2000
EventProceedings of the 1998 International Workshop on Basic Aspects of Differences in Irradiation Effects Between FCC, BCC, and HCP Metals and Alloys - Austurias, Spain
Duration: Oct 15 1998Oct 20 1998

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

Fingerprint Dive into the research topics of 'New procedure of X-ray line profile analysis applied to study the dislocation structure and subgrain size-distributions in fatigued MANET steel'. Together they form a unique fingerprint.

  • Cite this