TY - GEN
T1 - Improvement of fatigue strength for titanium alloy compacts by MIM
AU - Jungho, Choe
AU - Osada, Toshiko
AU - Kudo, Kentaro
AU - Tsumori, Fujio
AU - Miura, Hideshi
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Ti-6Al-4V alloy is paid the attention from the automotive and aerospace industries because of its outstanding specific strength and corrosion resistance. On the other hand, Ti-6Al-4V alloy has normally poor workability. Therefore, Metal Injection Molding (MIM) process is hoped to be one of the technique to reduce the manufacturing cost. Recently many researches for Ti-6Al-4V compacts by MIM process were reported, however, there are a few reports about fatigue fracture properties. According to our previous study, they presented a problem of low fatigue strength compared to wrought material. In this study, to improve the fatigue strength of Ti-6Al-4V compacts by MIM process, a little amount of boron was added by using TiB2 powder. Boron showed the effect of refining the grain size of lamellar structure of Ti-6Al-4V compacts, which lead to increase the fatigue strength.
AB - Ti-6Al-4V alloy is paid the attention from the automotive and aerospace industries because of its outstanding specific strength and corrosion resistance. On the other hand, Ti-6Al-4V alloy has normally poor workability. Therefore, Metal Injection Molding (MIM) process is hoped to be one of the technique to reduce the manufacturing cost. Recently many researches for Ti-6Al-4V compacts by MIM process were reported, however, there are a few reports about fatigue fracture properties. According to our previous study, they presented a problem of low fatigue strength compared to wrought material. In this study, to improve the fatigue strength of Ti-6Al-4V compacts by MIM process, a little amount of boron was added by using TiB2 powder. Boron showed the effect of refining the grain size of lamellar structure of Ti-6Al-4V compacts, which lead to increase the fatigue strength.
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M3 - Conference contribution
AN - SCOPUS:84978532218
T3 - Advances in Powder Metallurgy and Particulate Materials - Proceedings of the 2015 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2015
BT - Advances in Powder Metallurgy and Particulate Materials - Proceedings of the 2015 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2015
PB - Metal Powder Industries Federation
T2 - 2015 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2015
Y2 - 17 May 2015 through 20 May 2015
ER -