摘要
研究了半固态过共晶高铬铸铁坯料部分重熔保温过程中初生碳化物的演变规律。结果表明,在1 300℃保温过程中,初生碳化物演变经历了细化和球化、长大、溶解三个阶段。其中第一阶段末,能够得到均匀、细小、圆整的理想初生碳化物组织。
Primary carbide microstructure evolution in the semi-solid hypereutectic high Cr cast iron has been studied at partial remelting temperature. The results showed that the morphology evolution of primary carbide experienced three stages as following: primary carbide spheroidizing and refining, growing, dissolving at the holding temperature of 1 300 ℃. The fine, equiaxed and homogeneous carbides could be obtained at the end of the first holdinq stage.
出处
《铸造》
CAS
CSCD
北大核心
2008年第3期230-233,共4页
Foundry
基金
云南省自然科学基金(2004E0018M
2004E0013Q)
云南省教育厅科学研究基金(5Y0662D)
关键词
半固态
过共晶高铬铸铁
初生碳化物
部分重熔
组织演变
semi-solid
hypereutectic high Or cast iron
primary carbide
partial remelting
microstructure evolution