近几年来,对过热钢材进行中温矫正处理的研究,已取得令人满意的结果。通过上述处理,可以抑制过热现象、提高钢的韧性而并不降低其强度。 五十年代中期,人们开始对临界区热处理工艺发生兴趣;六十年代,在这方面的研 In recent years, overheating steel temperature correction treatment research has yielded satisfactory results. By the above treatment, overheating can be suppressed, the toughness of the steel can be improved, and the strength thereof can be reduced. In the mid-1950s, people began to have an interest in the heat treatment process in the critical zone. In the 1960s, research in this area