Effect of minor boron addition on the fatigue strength and high temperature properties of injection molded Ti-6Al-4V compacts

Jungho Choe, Toshiko Osada, Kentaro Kudo, Fujio Tsumori, Hideshi Miura

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

Ti-6Al-4V alloy has attracted a lot of attention from the automotive and aerospace industries because of their outstanding specific strength and corrosion resistance. On the other hand, Ti-6Al-4V alloy has normally poor workability because of the low thermal conductivity and the low elastic modulus. Metal injection molding (MIM) process is expected to manufacture a complex part with near net shape and reduce the manufacturing cost. However, Ti-6Al-4V alloy compacts by MIM process had a problem of low fatigue strength compared to wrought material. In this study, we tried to add a minor amount of boron using TiB2 powder for improving the fatigue strength. Addition of boron resulted refinement of the grain size of lamellar structure, which lead to increase the high cycle fatigue strength and fatigue limit. In addition, tensile properties at high temperature was investigated.

元の言語英語
ページ(範囲)451-456
ページ数6
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
63
発行部数7
DOI
出版物ステータス出版済み - 1 1 2016

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High temperature properties
Boron
Metal molding
Injection molding
Lamellar structures
Aerospace industry
Tensile properties
Automotive industry
Powders
Corrosion resistance
Thermal conductivity
Elastic moduli
Fatigue of materials
titanium alloy (TiAl6V4)
Fatigue strength
Costs
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

これを引用

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AU - Tsumori, Fujio

AU - Miura, Hideshi

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