Effect of Ti addition on density and microstructure development of MoSiBTiC alloy

Joung Wook Kim, Kyosuke Yoshimi, Hirokazu Katsui, Takashi Goto

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

The effect of Ti addition on the density and microstructure development of MoSiBTiC alloy was investigated. Two kinds of MoSiBTiC alloys with the composition of Mo-5Si-10B-10Ti-10C (10Ti alloy) and Mo-5Si-10B-15Ti-10C (15Ti alloy) (at. %) were prepared by conventional arc-melting. The primary phase of as-cast 10Ti and 15Ti alloys was (Ti,Mo)C, and there were two eutectic phases of Moss + (Ti,Mo)C and Moss + T2 + (Ti,Mo)C in the alloys. In addition, 10Ti alloy had a Moss + T2 + (Mo,Ti)2C eutectic. There was no Moss + T2 + (Mo,Ti)2C eutectic in the 15Ti alloy, and thus it is apparent that the (Mo,Ti)2C formation was suppressed by 5 at. % Ti addition. The volume fraction of (Ti,Mo)C increased and thus the density reduced from 8.78 to 8.43 g/cm3 with the Ti addition. In all constituent phases, Ti concentration increased while Mo concentration decreased. In spite of the changes, hardness, Young's modulus and shear modulus were hardly changed. Therefore, Ti addition seems to be effective to further lower the density without deteriorating mechanical properties of the MoSiBTiC alloy.

本文言語English
ホスト出版物のタイトルAdvanced Structural and Functional Intermetallic-Based Alloys
編集者M. Heilmaier, I. Baker, K. Kishida, M. Mills, S. Miura
出版社Materials Research Society
ページ73-78
ページ数6
ISBN(電子版)9781510806344
DOI
出版ステータスPublished - 2015 1 1
イベント2014 MRS Fall Meeting - Boston, United States
継続期間: 2014 11 302014 12 5

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1760
ISSN(印刷版)0272-9172

Other

Other2014 MRS Fall Meeting
国/地域United States
CityBoston
Period14/11/3014/12/5

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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