摘要
通过实验,研究了提高40Cr钢强度和韧性的问题,即进行二次淬火:第一次高温淬火增加位错亚结构,减少孪晶,消除未熔碳化物,减少偏析;第二次常规淬火,获得第一次淬火所得位错马氏体的遗传,细化晶粒,从而提高强度和韧性。
Studying the problem on improving the intensty and toughness of 40Cr steel through the experiment, which is the same as quenching two times： the first quenching under high temperature aims at increasing dislocation inferior structure, reducing twin crystal, deleting dissolved carbide and reducing segregation ; the second quenching is routine in order to obtain the dislocation horse＇s heredity of the first quenching and then thin crystalline grain, thus improving its intensity and toughness.
出处
《黑龙江纺织》
2006年第2期30-31,22,共3页
Heilongjiang Textiles
关键词
40CR钢
强度
韧性
40Cr sreel
intensity
toughness
