Fe-16.5Crフェライト及びFe-25Cr-20Niオーステナイト焼結合金の減衰能及び機械的性質におよぼす再結晶の影響
1983 年 69 巻 7 号 p. 845-852
詳細
1983 年 69 巻 7 号 p. 845-852
The effect of the fine recrystallized grains by annealing on the damping capacity was investigated by using of powder alloys. After sintering ferritic Fe-16.5%Cr powder and austenitic Fe-25%Cr-20%Ni powder were rolled 40%, 60% and 80% and annealed at various temperature heated for 1 h, the damping capacity, the hardness and the tensile properties for these specimens were measured at room temperature. Only sintering austenitic Fe-25%Cr-20%Ni powder rolled 80% and annealed at 820°C indicated good results that the internal friction Q-1 was 1.0 × 10-2, the ultimate tensile strength σB was as high as high tensile steel, 69 kgf/mm2 and the total elongation δ was 18.7% in spite of powder alloy.
