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本文采用轧制变形方式,研究了16Mn钢,12MnTiNb钢,35CrMo钢和工业纯铝的热变形奥氏体(工业纯铝为α相)静态再结晶行为,并用Y参数(Y=τ·z~m·eR~t)来描述停留时间,停留温度和Z参数对静态再结晶行为的影响。其结果表明:对于没有碳氮化物析出的16Mn钢,35CrMo钢以及工业纯铝,能够用Y参数很好地描述其静态再结晶规律,Y参数愈大,则愈容易发生静态再结晶;而当有碳氮化物析出时(如12MnTiNb钢),因析出物强烈阻碍再结晶,改变其再结晶规律。所以此时Y参数不能正确反映出停留温度,停留时间和Z参数对静态再结晶的影响。当有碳氮化物析出时,Y参数中要考虑析出的影响,要对Y参数加以修正。
In this paper, the static recrystallization behavior of hot-deformed austenite (α-phase of industrial pure aluminum) of 16Mn steel, 12MnTiNb steel, 35CrMo steel and industrial pure aluminum was studied. The Y parameters (Y = τ · z ~ m · eR ~ t) to describe the effect of residence time, residence temperature and Z parameters on static recrystallization behavior. The results show that for 16Mn steel, 35CrMo steel and industrial pure aluminum without carbonitride precipitation, the law of static recrystallization can be well described by the Y parameter. The larger the Y parameter, the more likely static recrystallization occurs. When Carbonitride precipitation (such as 12MnTiNb steel), because precipitates strongly hinder recrystallization, changing its recrystallization rules. Therefore, the Y parameter can not correctly reflect the effect of the residence temperature, residence time and Z parameter on the static recrystallization. When there is carbonitride precipitation, Y parameters to consider the impact of precipitation, Y parameters to be amended.