To provide a lightweight heat resistant Al-based alloy having excellent heat resistant strength and wear resistance.
The Al-based alloy has a composition consisting of 15 to 35%, in total, of 5 to 15% Zr, 1 to 8% Fe, 1 to 8% Cr, 1 to 8% Mn, 0.5 to 5% Ti, 0.5 to 5% Ni, 0.5 to 5% Si and 0.5 to 5% V and the balance Al with inevitable impurities. The structure of the Al-based alloy consists of, by volume fraction, 35 to 80% intermetallic compound phase and the balance Al matrix. The above intermetallic compound phase contains Al-Zr intermetallic compound phase, and one or more elements among the above Fe, Cr, Mn, Ti, Ni, Si, and V are allowed to enter into solid solution in the Al-Zr intermetallic compound phase and the total of these elements in the state of solid solutions is made to ≥7 mass%. In this way, heat resistant strength and wear resistance can be improved.
COPYRIGHT: (C)2007,JPO&INPIT
Toshiaki Takagi
Hatake Hero
| JP1149936A | ||||
| JP7188823A | ||||
| JP2000225412A | ||||
| JP2034740A |
Yoshiyuki Kaji
Makoto Suhara
Seiji Kameoka
Hironori Takenaka
Toru Sakatani