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研究了不同退火工艺对SUS410L铁素体不锈钢热轧板组织与力学性能的影响。结果表明:在600~800℃退火保温10~30 min,随着退火温度、时间的增加,再结晶程度增加,强度降低,伸长率升高;在750℃退火保温40~60min,随着退火时间延长,力学性能变化不明显;经850℃退火后,钢中有马氏体生成,由于马氏体相变强化作用,使得试样的强度升高、伸长率下降;马氏体显微硬度为180~190 HV,铁素体显微硬度为130~140 HV。
The effects of different annealing processes on the microstructure and mechanical properties of SUS410L ferritic stainless steel sheet were studied. The results show that annealing at 600 ~ 800 ℃ for 10 ~ 30 min, the recrystallization degree increases with the increase of annealing temperature and time, the strength decreases and the elongation increases; annealing at 750 ℃ for 40 ~ 60min, After annealing at 850 ℃, martensite was formed in the steel, the strength of the sample increased due to the strengthening effect of martensitic transformation, and the elongation decreased. The martensite microstructure Hardness of 180 ~ 190 HV, ferrite microhardness of 130 ~ 140 HV.