典型文献
Eutectic precipitates and microstructure of electroslag remelted 15Cr-22Ni austenitic heat-resistant steel with varying Nb contents
文献摘要：
The microstructure,eutectic carbides and intermetallic compounds in as-cast ingots with varying Nb contents produced by electroslag remelting were studied.The solidification behavior,microsegregation of alloying elements and its influence on precipitates were analyzed.The increase in Nb content from 0.64 to 1.40 wt.％has no effect on the dendrite morphology and secondary dendrite arm spacing.The total area fraction of eutectic NbC and Laves phase in as-cast ingots increases with the increase in Nb content.The eutectic precipitates in the ingot with 0.64 wt.％Nb are mainly NbC,and the others are Fe2Nb-type Laves phase.Increasing the Nb content of the steel significantly promotes the precipitation of Laves phases and lowers the precipitation temperature of NbC eutectic carbides.Eutectic carbide M2C is precipitated only in the ingot with 1.4 wt.％Nb.The average concentration of Nb in both interdendritic and intragranular regions increases with the increase in Nb content of the steel,leading to a change in the morphology of Fe2Nb-type Laves phase from honeycomb to blocky.Increasing the Nb content exerts little effect on the microsegregation degrees of Si,Mo,Cr and Ni in the steel.
文献关键词：
中图分类号：
作者姓名：
Hao-chi Xu;Cheng-bin Shi;Xin Zhu;Shi-jun Wang;Jing Li;Shi-zhou Wang
作者机构：
State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing(USTB),Beijing 100083,China
文献出处：
引用格式：
[1]Hao-chi Xu;Cheng-bin Shi;Xin Zhu;Shi-jun Wang;Jing Li;Shi-zhou Wang-.Eutectic precipitates and microstructure of electroslag remelted 15Cr-22Ni austenitic heat-resistant steel with varying Nb contents)[J].钢铁研究学报（英文版）,2022(11):1823-1835
A类：
22Ni
B类：
Eutectic,precipitates,microstructure,electroslag,remelted,15Cr,austenitic,heat,resistant,steel,varying,contents,eutectic,carbides,intermetallic,compounds,cast,ingots,produced,by,remelting,were,studied,solidification,behavior,microsegregation,alloying,elements,its,influence,analyzed,from,wt,no,effect,dendrite,morphology,secondary,arm,spacing,total,area,fraction,NbC,Laves,increases,mainly,others,Fe2Nb,type,Increasing,significantly,promotes,precipitation,phases,lowers,temperature,M2C,precipitated,only,average,concentration,both,interdendritic,intragranular,regions,leading,change,honeycomb,blocky,exerts,little,degrees,Si,Mo
AB值：
0.460249
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