Effects of addition of V and NB on Ω in high CR ferritic steels

Masatoshi Mitsuhara, Yu Yoshida, Ken Ichi Ikeda, Hideharu Nakashima, Takashi Wakai

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

Abstract

Creep tests and microstructural observations in several high Cr ferritic steels bearing V and Nb were carried out in order to investigate effects of addition of V and Nb on Ω, which is a coefficient of Ω method. Creep strength was improved with increasing the V content and was slightly lowered by increasing the Nb content. Ω in all the steels bearing V or Nb was lager than that in fundamental steel. The dependence of Ω on the amount of additions was different between V and Nb. In steels bearing V, Ω became larger with increasing V content. In steels bearing Nb, Ω became smaller. These results revealed that Ω corresponds to the creep strength, indicating that the value of Ω can be estimated using the strengthening effects of the additive element.

Original languageEnglish
Title of host publicationSelected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
PublisherTrans Tech Publications Ltd
Pages95-98
Number of pages4
EditionPART 1
ISBN (Print)0878494626, 9780878494620
DOIs
Publication statusPublished - 2007
Event6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 - Jeju, Korea, Republic of
Duration: Nov 5 2007Nov 9 2007

Publication series

NameMaterials Science Forum
NumberPART 1
Volume561-565
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
CountryKorea, Republic of
CityJeju
Period11/5/0711/9/07

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Mitsuhara, M., Yoshida, Y., Ikeda, K. I., Nakashima, H., & Wakai, T. (2007). Effects of addition of V and NB on Ω in high CR ferritic steels. In Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 (PART 1 ed., pp. 95-98). (Materials Science Forum; Vol. 561-565, No. PART 1). Trans Tech Publications Ltd. https://doi.org/10.4028/0-87849-462-6.95