脱碳时间对Fe-3%Si钢氧化层组成及形貌的影响
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摘要
脱碳退火时间是决定Fe-3%Si钢表面内氧化行为的重要工艺参数之一,继而影响着后续渗氮及二次再结晶工艺。在1 103K的退火温度及N2+H2+H2O的退火气氛下进行了脱碳退火实验,研究了退火时间对Fe-3%Si钢表面氧化行为的影响。通过傅里叶变换红外光谱仪、扫描电镜及辉光放电质谱仪观察了Fe-3%Si钢表面氧化层的演变过程,分析了氧化层内硅、氧含量分布趋势,建立了氧化层结构与氧化物含量之间的关系。实验结果表明,经过脱碳退火后,Fe-3%Si钢表面氧化物由二氧化硅和铁橄榄石组成。随着退火时间的延长,内氧化层增厚,硅元素在内氧化层中的富集程度增加。当硅钢表面氧化深度相同时,氧化物含量随退火时间的增加而增多。
Annealing time is an important process parameter to determine the oxidation behavior of Fe-3%Si steel during decarburization,and then affects the nitriding process and secondary recrystallization process.The oxidation behavior of Fe-3%Si steel with different annealing time was studied in N_2+H_2+H_2O at 1103 K.The evolution of oxidized layer and the relationship between structure of oxidized layer and oxide content were investigated using Vertex type Fourier transform infrared,scanning electron microscopy and Glow Discharge Spectrometer.The results show that the oxides are composed of SiO_2 and Fe_2SiO_4.With the increase of annealing time,the internal oxidation zone thickens and the enrichment of silicon increases in the oxidized layer.When the depth of oxidized layer is same,the oxides content increases with increasing annealing time.
Annealing time is an important process parameter to determine the oxidation behavior of Fe-3%Si steel during decarburization,and then affects the nitriding process and secondary recrystallization process.The oxidation behavior of Fe-3%Si steel with different annealing time was studied in N_2+H_2+H_2O at 1103 K.The evolution of oxidized layer and the relationship between structure of oxidized layer and oxide content were investigated using Vertex type Fourier transform infrared,scanning electron microscopy and Glow Discharge Spectrometer.The results show that the oxides are composed of SiO_2 and Fe_2SiO_4.With the increase of annealing time,the internal oxidation zone thickens and the enrichment of silicon increases in the oxidized layer.When the depth of oxidized layer is same,the oxides content increases with increasing annealing time.
引文
[1]许令峰,毛卫民,张晓辉.晶粒取向对冷轧无取向硅钢磁时效的影响[J].功能材料,2010,41(12):2144.(Xu L F,Mao W M,Zhang X H.Influence of texture on magnetic aging of cold rolling non-oriented silicon steel sheets[J].Journal of Functional Materials,2010,41(12):2144.)
[2]张晨,项利,董廷亮,等.取向硅钢脱碳退火的试验研究[J].钢铁研究学报,2009,21(12):55.(Zhang C,Xiang L,Dong T L,et al.Decarburizing annealing of grain oriented silicon steel[J].Journal of Iron and Steel Research,2009,21(12):55.)
[3]陈友根,樊立峰,张晨,等.普通冷轧取向硅钢中间完全脱碳退火工艺的确定[J].机械工程材料,2013,37(11):73.(Chen Y G,Fan L F,Zhang C,et al.Determination of intermediate complete decarburizing annealing process of common grain-oriented silicon steel[J].Materials for Mechanical Engineering,2013,37(11):73.)
[4]刘良田.超低碳电工钢碳的控制[J].武钢技术,2000,38(3):1.(Liu L T.Carbon control in refining extra low carbon silicon steel[J].WISCO Technology,2000,38(3):1.)
[5]龚彦兵.取向硅钢连续退火的工艺与设计[J].工业炉,2011,33(2):12.(Gong Y B.Technique and design about oriented silicon steel in CAL[J].Industrial Furnace,2011,33(2):12.)
[6]Lobanov M L,Gomzikov A I,Akulov S V,et al.Decarburizing annealing of technical alloy Fe-3%Si[J].Metal Science and Heat Treatment,2005,47(9/10):478.
[7]Yamazaki S,Takahashi F,Kubota T,et al.Internal oxidation of Fe-3%Si alloys annealed under H2O-H2atmosphere[J].Materials and Corrosion,2011,62(6):476.
[8]Jung S,Serk K M,Park J,et al.A TEM study of oxide layers formed during decarburization annealing of electrical steel[J].ISIJ International,2011,51(7):1163.
[9]Sidor Y,Kovac F.Effect of heat treatment conditions on the internal and external oxidation processes in non-oriented electrical steels[J].Materials and Design,2005,26(4):297.
[10]Yamazaki T.On the decarburization of silicon steel sheet[J].Transactions of Iron and Steel Institute of Japan,1969,9(1):66.
[11]Poultney D,Snell D.Evaluation of oxide layers formed during the decarburisation of grain-oriented electrical steel using a Fourier transform infrared(FTIR)technique[J].Journal of Magnetism and Magnetic Materials,2008,320(20):645.
[12]Toda H,Sato K,Komatsubara M.Characterization of internal oxide layers in 3%Si grain-oriented steel by electrochemical methods[J].Journal of Materials Engineering and Performance,1997,6(6):722.
[13]Birks N,Meier G H,Pettit F S.Introduction to the HighTemperature Oxidation of Metals[M].[S.l.]:Cambridge University Press,2010.
[14]李铁藩.金属高温氧化和热腐蚀[M].北京:化学工业出版社,2003.(Li T F.High Temperature Oxidation of Metal and Thermal Corrosion[M].Beijing:Chemical Industry Press,2003.)
[15]Takada J,Adachi M.Determination of diffusion coefficient of oxygen inα-iron from measurements of internal oxidation in Fe-Si alloys[J].Journal of Materials Science,1986,21(6):2133.
[16]Geiger A L.Surface oxidation of non-oriented silicon-aluminium electrical steels during annealing[J].Journal of Applied Physics,1978,49(3):2040.
[2]张晨,项利,董廷亮,等.取向硅钢脱碳退火的试验研究[J].钢铁研究学报,2009,21(12):55.(Zhang C,Xiang L,Dong T L,et al.Decarburizing annealing of grain oriented silicon steel[J].Journal of Iron and Steel Research,2009,21(12):55.)
[3]陈友根,樊立峰,张晨,等.普通冷轧取向硅钢中间完全脱碳退火工艺的确定[J].机械工程材料,2013,37(11):73.(Chen Y G,Fan L F,Zhang C,et al.Determination of intermediate complete decarburizing annealing process of common grain-oriented silicon steel[J].Materials for Mechanical Engineering,2013,37(11):73.)
[4]刘良田.超低碳电工钢碳的控制[J].武钢技术,2000,38(3):1.(Liu L T.Carbon control in refining extra low carbon silicon steel[J].WISCO Technology,2000,38(3):1.)
[5]龚彦兵.取向硅钢连续退火的工艺与设计[J].工业炉,2011,33(2):12.(Gong Y B.Technique and design about oriented silicon steel in CAL[J].Industrial Furnace,2011,33(2):12.)
[6]Lobanov M L,Gomzikov A I,Akulov S V,et al.Decarburizing annealing of technical alloy Fe-3%Si[J].Metal Science and Heat Treatment,2005,47(9/10):478.
[7]Yamazaki S,Takahashi F,Kubota T,et al.Internal oxidation of Fe-3%Si alloys annealed under H2O-H2atmosphere[J].Materials and Corrosion,2011,62(6):476.
[8]Jung S,Serk K M,Park J,et al.A TEM study of oxide layers formed during decarburization annealing of electrical steel[J].ISIJ International,2011,51(7):1163.
[9]Sidor Y,Kovac F.Effect of heat treatment conditions on the internal and external oxidation processes in non-oriented electrical steels[J].Materials and Design,2005,26(4):297.
[10]Yamazaki T.On the decarburization of silicon steel sheet[J].Transactions of Iron and Steel Institute of Japan,1969,9(1):66.
[11]Poultney D,Snell D.Evaluation of oxide layers formed during the decarburisation of grain-oriented electrical steel using a Fourier transform infrared(FTIR)technique[J].Journal of Magnetism and Magnetic Materials,2008,320(20):645.
[12]Toda H,Sato K,Komatsubara M.Characterization of internal oxide layers in 3%Si grain-oriented steel by electrochemical methods[J].Journal of Materials Engineering and Performance,1997,6(6):722.
[13]Birks N,Meier G H,Pettit F S.Introduction to the HighTemperature Oxidation of Metals[M].[S.l.]:Cambridge University Press,2010.
[14]李铁藩.金属高温氧化和热腐蚀[M].北京:化学工业出版社,2003.(Li T F.High Temperature Oxidation of Metal and Thermal Corrosion[M].Beijing:Chemical Industry Press,2003.)
[15]Takada J,Adachi M.Determination of diffusion coefficient of oxygen inα-iron from measurements of internal oxidation in Fe-Si alloys[J].Journal of Materials Science,1986,21(6):2133.
[16]Geiger A L.Surface oxidation of non-oriented silicon-aluminium electrical steels during annealing[J].Journal of Applied Physics,1978,49(3):2040.
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