引言在金属热轧中,各道次之间的静态回复,对下一道次的行为有重大影响。多道次轧制时,金属温度是逐渐降低的。这样,当间隔时间接近时,温降和前一个道次一样。这种情况完全不同于冷加工达到某一变形程度后并于不同温度下退火的情况。热加工时,高温保证了象退火时一样高的热激活,导致低的应变能。与常规变形后的纯金属相比,添加溶质,一般能降 Introduction In metal hot rolling, the static recovery between passes has a significant impact on the behavior of the next pass. Multi-pass rolling, the metal temperature is gradually reduced. In this way, when the interval time approaches, the temperature drop is the same as the previous one. This situation is completely different from cold working to reach a certain degree of deformation and annealing at different temperatures. In hot working, high temperatures ensure as high thermal activation as in annealing, resulting in low strain energy. Compared with the conventional deformation of pure metal, add solute, generally can be reduced