气体氮化对碳钢耐蚀性的影响及化合物层的价电子理论分析
Effect of Gas Nitriding on the Corrosion Resistance of Carbon Steel and Empirical Electron Theory Analysis of Compound Layer
摘 要
对Q235钢进行低温气体氮化。采用扫描电子显微镜（SEM），X射线衍射（XRD）和电化学试验研究了气体氮化对Q235钢耐蚀性的影响；并利用经验电子理论（EET）计算了表面层的价电子结构及共价键键能。结果表明：气体氮化增加了Q235钢的耐蚀性；经气体氮化处理后的试样表面最强键的键强nA和键能Ea都大大高于α-Fe结构单元的nA和Ea，表明价电子结构与腐蚀性能之间有着密切的相关性。由于N原子溶入到α-Fe中，导致主键络的nA、Ea增加，提高了表层结构的稳定性，这可能是提高氮化处理后试样耐蚀性的根本原因。
Q235钢
耐蚀性
经验电子理论
oxynitrocarburizing
Q235 steel
corrosion resistance
empirical electron theory (EET)
Abstract
Gas oxynitrocarburizing was carried out on Q235 carbon steel at low temperature. scanning electron microscopy (SEM), X-ray diffraction (XRD) and electrochemical methods were used to study the effect of oxynitrocarburizing on corrosion resistance of Q235 steel. And the empirical electron theory (EET) was applied to evaluate the structure of valence electrons and the energy of covalent bonds. The results showed that the corrosion resistance of Q235 carbon steel could be obviously improved by gas oxynitrocarburizing. The calculated results reveal that the largest bond strength nA and the bond energy Ea in the oxynitrocarburized layer were markedly higher than those in α-Fe after gas oxynitrocarburizing, which indicates the close relationship between corrosion and structure of valence electrons. Meanwhile, the nA and Ea of main bonds increased due to the N atom dissolved in α-Fe, which enhanced the phase stability of the oxynitrocarburized layer. This might be the primary mechanism for the excellent corrosion resistance of the oxynitrocarburized Q235 carbon steel.
中图分类号 TG178 DOI 10.11973/fsyfh-201803009
所属栏目 试验研究
基金项目
收稿日期 2016/6/28
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引用该论文: ZHANG Jingbao,YANG Chuan,ZHANG Chengsong,GAO Guoqing. Effect of Gas Nitriding on the Corrosion Resistance of Carbon Steel and Empirical Electron Theory Analysis of Compound Layer[J]. Corrosion & Protection, 2018, 39(3): 207
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参考文献
【1】李毅丰,柴均博,李赛鹏,等. 催渗剂对O-N-C多元共渗Q235钢耐蚀性的影响[J]. 金属热处理,2013,38(1):80-83.
【2】李正宁. 钢铁硫腐蚀的电子理论研究[D]. 东营:中国石油大学(华东),2011.
【3】王兴隆,彭艳. 微合金钢价电子结构与力学性能关联的计算分析[J]. 材料科学与工艺,2015,23(4):30-35.
【4】阎杰,谢军,元敬顺. Mg-Al合金价电子结构及合金元素对力学性能影响的研究[J]. 河北建筑工程学院学报,2015,33(3):7-12.
【5】孙跃军,李思南,尚勇,等. 碳对马氏体价电子结构参数及力学性能的影响[J]. 材料科学与工程学报,2013,31(1):34-39.
【6】李双寿,汤彬,武汉琦,等. 细化变质对亚共晶Al-Si合金熔体结构的影响[J]. 特种铸造及有色合金,2007,27(1)62-63.
【7】张建民,张瑞林,余瑞璜,等. Fe-Al合金有序无序相变的电子理论研究[J]. 金属学报,1994,30(5):204-208.
【8】范润华,尹文宗. 无序化对有序铁铝金属间化合物磁性的影响[J]. 人工晶体学报,2005,30(4):606-609.
【9】蒋淑英,李世春. Y-Al化合物对铝合金性能影响的价电子理论分析[J]. 材料科学与工艺,2014,22(4):124-128.
【10】李春福,童丽华,程定春,等. 不锈钢耐蚀性能的价电子理论研究进展[J]. 钢铁,2015,50(1):1-4.
【11】吴大兴,杨川,高国庆. 中国:气体多元共渗渗剂气体发生装置,200510021888[P]. 2006-10-11.
【12】YANG J X,MIAO X H,WANG X B,et al. Microstructure,magnetic properties and empirical electron theory calculation of laser cladding FeNiCr/60%WC composite coating with Mo addtions[J]. Int Journal of Refractory Metals and Hard Meterials,2016,54:216-222.
【13】FU B Q,LIU W,LI Z L. Calculation of the surface energy of bcc-metals with the empirical electron theory[J]. Applied Surface Science,2009,255:8511-8519.
【14】JI W,LU L T,CUI G D,et al. Effect of process temperature on the microstructure and properties of gas oxynitrocarburized 35CrMo alloy steel[J]. Materials and Design,2010,31:2654-2658.
【15】何爱花. 热轧钢板氧化膜对基体碳钢腐蚀电化学行为的影响[D]. 青岛:中国海洋大学,2007.
【16】JACOBS H,RECHENBARCH D,ZAZHWIEJA U. Structure determination of γ'-Fe4N and ε-Fe3N[J]. Journal of Alloys and Compound,1995,227(1):10-17.
【17】RECHENBARCH D,JACOBS H. Structure determination of ξ-Fe2N by neutron and synchrotron powder diffraction[J]. Journal of Alloys and Compound,1996,235(1):15-22.
【18】朱日彰. 金属腐蚀学[M]. 北京:冶金工业出版社,1988.
【2】李正宁. 钢铁硫腐蚀的电子理论研究[D]. 东营:中国石油大学(华东),2011.
【3】王兴隆,彭艳. 微合金钢价电子结构与力学性能关联的计算分析[J]. 材料科学与工艺,2015,23(4):30-35.
【4】阎杰,谢军,元敬顺. Mg-Al合金价电子结构及合金元素对力学性能影响的研究[J]. 河北建筑工程学院学报,2015,33(3):7-12.
【5】孙跃军,李思南,尚勇,等. 碳对马氏体价电子结构参数及力学性能的影响[J]. 材料科学与工程学报,2013,31(1):34-39.
【6】李双寿,汤彬,武汉琦,等. 细化变质对亚共晶Al-Si合金熔体结构的影响[J]. 特种铸造及有色合金,2007,27(1)62-63.
【7】张建民,张瑞林,余瑞璜,等. Fe-Al合金有序无序相变的电子理论研究[J]. 金属学报,1994,30(5):204-208.
【8】范润华,尹文宗. 无序化对有序铁铝金属间化合物磁性的影响[J]. 人工晶体学报,2005,30(4):606-609.
【9】蒋淑英,李世春. Y-Al化合物对铝合金性能影响的价电子理论分析[J]. 材料科学与工艺,2014,22(4):124-128.
【10】李春福,童丽华,程定春,等. 不锈钢耐蚀性能的价电子理论研究进展[J]. 钢铁,2015,50(1):1-4.
【11】吴大兴,杨川,高国庆. 中国:气体多元共渗渗剂气体发生装置,200510021888[P]. 2006-10-11.
【12】YANG J X,MIAO X H,WANG X B,et al. Microstructure,magnetic properties and empirical electron theory calculation of laser cladding FeNiCr/60%WC composite coating with Mo addtions[J]. Int Journal of Refractory Metals and Hard Meterials,2016,54:216-222.
【13】FU B Q,LIU W,LI Z L. Calculation of the surface energy of bcc-metals with the empirical electron theory[J]. Applied Surface Science,2009,255:8511-8519.
【14】JI W,LU L T,CUI G D,et al. Effect of process temperature on the microstructure and properties of gas oxynitrocarburized 35CrMo alloy steel[J]. Materials and Design,2010,31:2654-2658.
【15】何爱花. 热轧钢板氧化膜对基体碳钢腐蚀电化学行为的影响[D]. 青岛:中国海洋大学,2007.
【16】JACOBS H,RECHENBARCH D,ZAZHWIEJA U. Structure determination of γ'-Fe4N and ε-Fe3N[J]. Journal of Alloys and Compound,1995,227(1):10-17.
【17】RECHENBARCH D,JACOBS H. Structure determination of ξ-Fe2N by neutron and synchrotron powder diffraction[J]. Journal of Alloys and Compound,1996,235(1):15-22.
【18】朱日彰. 金属腐蚀学[M]. 北京:冶金工业出版社,1988.
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