TY - GEN
T1 - Fatigue strength of sintered and carburized compacts made of molybdenum hybrid-alloyed steel powder
AU - Unami, Shigeru
AU - Ozaki, Yukiko
AU - Uenosono, Satoshi
PY - 2007
Y1 - 2007
N2 - The fatigue strength of the sintered and carburized compact made of the Mo hybrid-alloyed steel powder, which is based on a molybdenum prealloyed steel powder to which Mo powder particles have been diffusion bonded, is higher than that of the Mo prealloyed steel powder. The sintered compact made of the Mo hybrid-alloyed steel powder has a finer pore structure than that of the Mo prealloyed steel powder, because the Mo-rich region near the surface of the Mo hybrid-alloyed steel powder should exist as the α- iron phase with a high diffusion coefficient at high temperature and result in enhanced sintering. Improvement in the fatigue strength of the sintered and carburized compact made of the Mo hybridalloyed steel powder should result from not only the fine pore structure but also the strengthening of the sintering neck by Mo concentration around pores.
AB - The fatigue strength of the sintered and carburized compact made of the Mo hybrid-alloyed steel powder, which is based on a molybdenum prealloyed steel powder to which Mo powder particles have been diffusion bonded, is higher than that of the Mo prealloyed steel powder. The sintered compact made of the Mo hybrid-alloyed steel powder has a finer pore structure than that of the Mo prealloyed steel powder, because the Mo-rich region near the surface of the Mo hybrid-alloyed steel powder should exist as the α- iron phase with a high diffusion coefficient at high temperature and result in enhanced sintering. Improvement in the fatigue strength of the sintered and carburized compact made of the Mo hybridalloyed steel powder should result from not only the fine pore structure but also the strengthening of the sintering neck by Mo concentration around pores.
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M3 - Conference contribution
AN - SCOPUS:84883439434
SN - 0979348854
SN - 9780979348853
T3 - Advances in Powder Metallurgy and Particulate Materials - 2007, Proceedings of the 2007 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2007
SP - 1056
EP - 1065
BT - Advances in Powder Metallurgy and Particulate Materials - 2007, Proceedings of the 2007 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2007
T2 - 2007 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2007
Y2 - 13 May 2007 through 16 May 2007
ER -