铸造技术2012，Vol.33Issue(2)：139-143,5.
Fe-Ni-P-B共晶合金的深过冷凝固组织演化
Microstructure Evolution of High Undercooled Fe-Ni-P-B Eutectic Alloy
摘要
Abstract
The high undercooled Fe-Ni-P-B eutectic alloy was obtained by glass fluxing technique. The evolution of microstructures at different undercoolings was researched. The results show that the solidification structure gradually transforms from regular rod eutectic to granular anomalous eutectic with the increase of undercooling. When the undercooling is lower than 35 K, the rod regular eutectic refines gradually. When the undercooling ranges between 35 K and 150 K, the structure is composed of regular eutectic and anomalous eutectic. When the undercooling exceeds 150 K, complete anomalous eutectic is obtained. The formation of different structures can be explained by J-H model and dendrite remelting.关键词
Fe-Ni-P-B共晶合金/玻璃熔覆/过冷度/棒状共晶/非规则共晶Key words
Fe-Ni-P-B eutectic alloy/glass fluxing/undercooling/rod eutectic/anomalous eutectic分类
矿业与冶金引用本文复制引用
董晓晴,张柯,刘峰..Fe-Ni-P-B共晶合金的深过冷凝固组织演化[J].铸造技术,2012,33(2):139-143,5.基金项目
国家自然科学基金资助项目(51071127) （51071127）
