CAJ | 학술논문

研究了Fe‐23M n‐2Al‐V低磁钢在不同氧化温度和不同氧化时间的氧化规律，分别使用金相显微镜、扫描电镜和电子探针对合金的氧化程度、氧化产物、氧化层结构、氧化层元素分布等进行深入分析。实验结果表明，较低氧化温度时，合金表面形成连续致密的氧化层，提高了合金的抗氧化性能。提高氧化温度和增加氧化时间，会加速合金的内氧化及晶间氧化，导致氧化层厚度和晶界氧化程度加重。高温氧化时，氧化层分外氧化层和内氧化层两个区域，内氧化层深度大于50μm ，主要由α‐Fe、ε‐Fe、γ‐Fe、M nAl2 O4和AlN 组成。热轧板表面微裂纹主要起源于表面严重的晶界氧化，并在热轧过程中开裂扩展。
연구료Fe‐23M n‐2Al‐V저자강재불동양화온도화불동양화시간적양화규률，분별사용금상현미경、소묘전경화전자탐침대합금적양화정도、양화산물、양화층결구、양화층원소분포등진행심입분석。실험결과표명，교저양화온도시，합금표면형성련속치밀적양화층，제고료합금적항양화성능。제고양화온도화증가양화시간，회가속합금적내양화급정간양화，도치양화층후도화정계양화정도가중。고온양화시，양화층분외양화층화내양화층량개구역，내양화층심도대우50μm ，주요유α‐Fe、ε‐Fe、γ‐Fe、M nAl2 O4화AlN 조성。열알판표면미렬문주요기원우표면엄중적정계양화，병재열알과정중개렬확전。
In this paper ,high temperature oxidation regulation of Fe‐23M n‐2Al‐V nonmagnetic steel is studied at different heating temperature and different holding time .T he oxidation behaviors of Fe‐23M n‐2Al‐V are simulated in the muffle furnace .The oxides scale ,structural features and redistribution of the alloy elements are investigated by optical microscopy ,scanning electron microscopy ,energy dispersive spec‐troscopy and scan electron probe ,respectively .The results show that the continuous and compact oxide layers inhibit oxidation at relatively low heating temperature .The intra‐oxidation and intergranular oxida‐tion would be obviously accelerated with the increase of oxidation temperature and time ,which results in the increase of oxide thickness and grain‐boundary oxidation .At high oxidation temperature ,the oxidation layer can be classified into two zones of the external‐oxidation and internal‐oxidation layers .The depth of internal‐oxidation is about 20~30μm .The phases of α‐Fe ,ε‐Fe ,γ‐Fe ,MnAl2 O4 and AlN are observed in in‐ternal‐oxidation layer .T he surface crack origin is formed in the seriously grain boundary oxidation ,and then the surface fine cracks are not developed but propagated in the process of hot rolling .