Effect of cold working and subsequent annealing on structural properties of Hafnium

Takeshi Mihara, Hiroaki Abe, Takeo Iwai, Yoshio Katano, Naoto Sekimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Hafnium is the material applied as control rods in BWR. To get insights into its behavior during operations, in this work, we applied optical microscopy and X-ray diffractometry (θ-2θ scanning and pole figure) to investigate microstructural change in hafnium plates upon cold-working and subsequent thermal annealing up to 1273 K. The grain growth associated with recrystallization of cold-worked microstructure was evident at the temperature around 1000 K, and above depending on the amount of working. Besides grain coarsening was observed at 1273 K. The crystallographic orientation change during recrystallization was observed along transverse direction, which is different from that of Mg and is similar to Ti and Zr.

Original languageEnglish
Title of host publicationInternational Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009
PublisherAtomic Energy Society of Japan
Pages2316-2321
Number of pages6
ISBN (Electronic)9781617386084
Publication statusPublished - 2009 Jan 1
EventInternational Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009 - Shinjuku, Tokyo, Japan
Duration: 2009 May 102009 May 14

Publication series

NameInternational Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009
Volume3

Other

OtherInternational Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009
Country/TerritoryJapan
CityShinjuku, Tokyo
Period09/5/1009/5/14

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering

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