| 摘要 |
Co-based alloy for internal combustion engine valves or valve seats contains 0.5-3.5 wt.% C, 0.1-3.0 wt.% Si, 10-37 wt.% Cr, 0.1-17.0 wt.% W, 0.1-10.0 wt.% Mo, 0.01-4.5 wt.% Ti, 0.01-5.50 wt.% Al and balance of Co and unavoidable impurities and optionally 0.01-2.0 wt.% Mn, 8-32 wt.% Ni, 1-16 wt.% Fe, 0.01-1.50 wt.% Nb and/or 0.001-1.50 wt.% B. The alloy has a good heat resistance.
|
