CAJ | 학술논문

研究了利用双辊铸轧镁合金铸轧坯直接进行热轧的生产工艺,研究了不同热轧工艺过程对产品品质的影响.研究表明,在400℃热轧时,随着压下量增加,铸轧镁合金显微组织的再结晶程度提高,晶粒细化;随着轧制温度的提高,显微组织中孪晶减少,再结晶程度提高,晶粒变得均匀且细小;在400℃下连续热轧到1.5 mm,得到的板材力学性能最优.
연구료이용쌍곤주알미합금주알배직접진행열알적생산공예,연구료불동열알공예과정대산품품질적영향.연구표명,재400℃열알시,수착압하량증가,주알미합금현미조직적재결정정도제고,정립세화;수착알제온도적제고,현미조직중련정감소,재결정정도제고,정립변득균균차세소;재400℃하련속열알도1.5 mm,득도적판재역학성능최우.
Effects of different hot rolling processing parameters on microstructure and mechanical proper-ties of twin rolling-casting AZ61 magnesium alloy strip were investigated. The results indicate that with hot rolling at 400℃, the grain size in the microstructure of the rolling-casting AZ61 magnesium alloy is refined as a result of the increase of recrystallization with in-creasing in reduction. In addition, with increasing rolling temperature, twin crystal is reduced and re-crystallization is increased in the microstructure, re-sulting in the refinement and uniform distribution of grain. The sheets exhibit desirable mechanical proper-ties with hot rolling at 400℃ to 1.5 mm in thickness.