| 摘要 |
FIELD: powdery metallurgy, alloys. ^ SUBSTANCE: invention relates to compositions of nickel-base powdery heat-resistant alloys. Proposed alloy comprises the following components, wt.-%: carbon, 0.02-0.08; chrome, 8.0-10.0; cobalt, 1.0-6.0; tungsten, 5.2-6.0; molybdenum, 3.4-4.2; titanium, 2.3-2.9; aluminum, 4.6-5.3; niobium, 1.0-1.9; hafnium, 0.5-0.4; boron, 0.005-0.05; zirconium, 0.001-0.05; magnesium, 0.001-0.05; manganese, 0.001-0.05; silicon, 0.001-0.5; iron, 0.001-0.5, and nickel, the balance. The proposed alloy shows high creep and plasticity indices, fatigue crack spreading low spreading value that enhances working resource of articles made of the proposed alloy. ^ EFFECT: improved and valuable technical properties of alloy. ^ 1 tbl, 1 ex |
