Toyota Jidosha Kabushiki Kaisha

Sanyo Special Steel Co., Ltd.

Fine Sinter Co., Ltd

Kimihiko Andou

Toshiyuki Sawada

Nobuyuki Shinohara

Shingo Fukumoto

Yusaku Yoshida

Masaru Sugimoto

Yoshihisa Ueda

Takayuki Yamada

Yuuki Kamo

The present disclosure provides hard particles having improved wear resistance and a sintered sliding member using the hard particles. The present disclosure relates to a hard particle consisting of: 1% to 7% by mass of La, 30% to 50% by mass of Mo, 10% to 30% by mass of Ni, 10% by mass or less of Mn, 1.0% by mass or less of C, with the balance being unavoidable impurities and Co, and to a sintered sliding member using the hard particles.

Hard particles and sintered sliding member using the same

The object of the present invention is to provide a compact for producing a sintered alloy which allows a sintered alloy obtained by sintering the compact to have improved mechanical strength and wear resistance, a wear-resistant iron-based sintered alloy, and a method for producing the same. The wear-resistant iron-based sintered alloy is produced by: forming a compact for producing a sintered alloy from a powder mixture containing a hard powder, a graphite powder, and an iron-based powder by powder compacting; and sintering the compact for producing a sintered alloy while diffusing C in the graphite powder of the compact for producing a sintered alloy in hard particles that constitute the hard powder. The hard particles contain 10% to 50% by mass of Mo, 3% to 20% by mass of Cr, and 2% to 15% by mass of Mn, with the balance made up of incidental impurities and Fe, and the hard powder and the graphite powder contained in the powder mixture account for 5% to 60% by mass and 0.5% to 2.0% by mass of the total amount of the hard powder, the graphite powder, and the iron-based powder, respectively.

Compact for producing a sintered alloy, a wear-resistant iron-based sintered alloy, and a method for producing the same

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Toyota, Japan

Kimihiko Andou