任艳茹, 刘周利, 杨维宇, et al. Effect of Solution Temperature on Impact Property of New Co-free Maraging Steel 00Nil4Cr3Mo3Ti[J]. Special Steel, 2020, 41(1): 64-67.
任艳茹, 刘周利, 杨维宇, et al. Effect of Solution Temperature on Impact Property of New Co-free Maraging Steel 00Nil4Cr3Mo3Ti[J]. Special Steel, 2020, 41(1): 64-67.DOI:
The effect of solid-solution temperature 750 - 1050 ℃ on impact property and hardness of 00Nil4Cr3Mo3Ti new maraging steel has been studied
the morphology of impact fracture and microstructure of unaging tested steel are observed by SEM. The results show that as solution temperature of steel is below 900 ℃
with increasing solution temperature the undissolved Laves phase in matrix gradually dissolves and impact properties increase with the increase of solution temperature of imaging and 510℃ 5h aging. As solution temperature is higher than 900 °C
the impact property of solid solution increase with the increase of solution temperature
the impact energy of steel solid-solution treated increases from 215J at 900 ℃. to 226J at 1050℃ . solution treated
but the aging impact property decrease with the increase of solution temperature
the impact energy of steel solution +510℃ 5 h aged decreases from max 62J solution treated at 900℃. to 25J solution treated at 1050℃