论文部分内容阅读
本文对低碳、低合金钢退火处理的组织进行了金相观察及电子探针微区分析。对Ac_1～Ac_3区间不同温度、不同加热条件下的组织进行了观察。结果表明:原初生奥氏体晶粒的遗传现象,是由加热过程中形成的针状γ相的长大汇聚的结果。其产生是与附近的碳化物具有密切的关系,长大受α相回复所限制。说明通过必要的热处理,该种遗传组织可得到必要的控制。
In this paper, the microstructure of the low carbon and low alloyed steel annealed was observed by metallography and electron microprobe analysis. The microstructure of Ac_1 ~ Ac_3 at different temperatures and different heating conditions was observed. The results show that the genetic phenomenon of the primary austenite grains is the result of the growth and aggregation of the acicular γ phase formed during the heating process. Its production is closely related to the vicinity of the carbide, the growth by α phase recovery limit. Indicating the necessary control of the genetic organization through the necessary heat treatment.