正火对ZG230-450H铸钢再热过程相变的影响  

Influence of Normalizing on Phase Transformation of ZG 230-450H during Reheating Process

作　　者：张毅斌[1] 

机构地区：[1]中国人民解放军海军驻鞍山钢铁集团公司军事代表室,辽宁鞍山114000

出　　处：《材料开发与应用》2017年第1期42-47,共6页Development and Application of Materials

摘　　要：采用热模拟试验技术并结合组织分析,研究了正火热处理对ZG 230-450H铸钢再热过程相变的影响。结果表明,由于正火后组织细化及均匀化,使ZG 230-450H铸钢再热奥氏体化转变开始温度及终止温度降低,奥氏体冷却过程中铁素体转变开始温度降低,最终相变温度终止温度提高。The effect of normalizing on phase transformation of ZG 230- 450 H during reheating process was investigated by using thermal / mechanical simulator and microstructure analysis. Results shown that due to refinement and homogenization of microstructures by normalizing,the starting and ending temperatures of austenite transformation were reduced. In the austenite cooling process,the starting temperature of ferrite transformation was reduced and the final finishing temperature of the phase transformation was increased.

关 键 词：ZG 230-450H铸钢 正火 再热相变 

分 类 号：TG151[金属学及工艺—热处理]