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2004  Volume 36 

Development of the next generation Ti-based wear & corrosion-resistant material
Kenji NAKAHARA, Masanori SAITO, Ryuichi SAKAMOTO, Shigeya SAKAGUCHI
Key words Ti-based sintered alloy, corrosion-resistance, wear-resistance, tribology, NaCl, H2SO4

Abstract

The next generation Ti-based corrosion & wear-resistant material "TX1", which combines excellent wear-resistance equivalent to cemented carbides with exceptional corrosion-resistance, has been developed. The hardness (wear-resistance), which is a disadvantage of conventional Ti-based hard material, has been improved dramatically because of change of Ti/C atom ratio in TiCx raw powder. This is because phase content of TiCx in sintered alloy is increased by relatively increasing fine TiCx powder content through making Ti/C atom ratio in TiCx raw powder larger. And another reason is that grain size in sintered alloy can be reduced by sintering at lower temperature due to acceleration of densification. It has been confirmed that TX1 is an alloy combining excellent wear & corrosion-resistance with good tribological property.
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