Effect of precipitation and solution behavior of impurities on mechanical properties of low activation vanadium alloy

A. Nishimura, A. Iwahori, N. J. Heo, T. Nagasaka, T. Muroga, S. I. Tanaka

Research output: Contribution to journalConference articlepeer-review

38 Citations (Scopus)

Abstract

Since vanadium alloys work harden during rolling to produce plate and such processing results in anisotropic mechanical properties, a post rolling heat treatment is required to recover the material properties. The effect of heat treatment temperature on mechanical properties was investigated and it was confirmed that heat treatment at 1073 K would recover the work hardening and provide better mechanical properties. In addition, the precipitation behavior of Ti-C-O was studied using solution heat treated plate to observe changes in the mechanical properties. Fine precipitates formed in high density at 973 K, increasing the yield stress. At 1173 K, larger precipitates formed at low density which decreased the yield stress. The 1373 K heat treatment dissolved all precipitates and resulted in a higher yield stress than that at 1173 K.

Original languageEnglish
Pages (from-to)438-441
Number of pages4
JournalJournal of Nuclear Materials
Volume329-333
Issue number1-3 PART A
DOIs
Publication statusPublished - 2004 Aug 1
Externally publishedYes
EventProceedings of the 11th Conference on Fusion Research - Kyoto, Japan
Duration: 2003 Dec 72003 Dec 12

ASJC Scopus subject areas

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

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