Study of Sintering Behavior in High Iron Content Sintering Fe-Cr Alloy
Chromium-iron alloy were chosen for interconnector material using in solid oxide fuel cell(SOFC)stack with their high temperature corrosion resistance and a close CTE(Coefficient of Thermal Expansion)match with the electrolyte.Currently,machining parts are replaced by sintering parts because of cost effective through net shape technologies.In this study,the Cr-30Fe,Cr-50Fe and Cr-78Fe porous alloys were prepared by powder metallurgy process.Shrinkage rate,porosity and microstructure of sintering alloys were measured and evaluated.The experimental results indicated the decrease of iron content,the sintering shrinkage rate obviously decrease,while the porosity rate obviously increases.The shape of the pores from irregular became more rounded with iron content and sintering temperature increased.The liquid phase sintering occurred during sintering process in higher iron content alloy; even the sintering temperature was not lower than the eutectic temperature.Therefore,the phase transformation point was verified by differential scanning calorimetry(DSC).
Chromium-Iron alloy Sintering behavior Eutectic temperature
Yao Chih-Kai Huang Wei-Ping Liao Shing-Yin Lee Huei-Long
Porite Taiwan Co.,Ltd.,Zhunan,Miaoli 35059,Chinese Taipei
国际会议
北京
英文
1797-1802
2018-09-16（万方平台首次上网日期，不代表论文的发表时间）