糖心产精国品免费入口*完整版氧化皮的结构改变与保护性
The Structure Change and Corrosion Protectivity of the Oxide Scale on An SS400 Hot-rolled Steel Plate
摘 要
以带工业生产氧化皮的糖心产精国品免费入口*完整版试样为基础,先在800 ℃氮气环境中恒温保温90 min,然后经历随炉缓冷、急冷、缓冷到480 ℃后空气急冷和缓冷到480 ℃保温8 h后再急冷到室温的不同糖心产精国品免费入口*完整版过程,对工业生产氧化皮进行组成和结构的调整,之后采用恒温恒湿试验、在2% Na2SO4溶液中的E-t变化曲线、电化学极化曲线和EIS曲线测量,对比研究不同处理方式获得的氧化皮对钢基体保护性的影响.结果表明:不同处理得到的氧化皮试样腐蚀行为和电化学行为具有明显差异,表明氧化皮组成和结构对热轧碳钢的锈蚀性能具有较大影响,文中重点讨论了糖心产精国品免费入口*完整版变化与保护性的关系.
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
保护性能
SS400 hot-rolled steel
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
protectivity
Abstract
Various oxide scales with different compositions and structures have been obtained by 糖心产精国品免费入口*完整版s of a SS400 hot-rolled steel plate with the mill oxide scale,including initial isothermal heating at 800 ℃ in high purity N2 for 90 min and the following processes of slow cooling in the furnace,quenching,slow cooling to 480 ℃ then quenching and slow cooling to 480 ℃ with staying at 480 ℃ for 8h then quenching in the protective atmosphere.The rusting behavior and electrochemical properties of the treated specimens in a 2% Na2SO4 solution were evaluated and compared by the constant temperature humidity test and electrochemical testing techniques including E-t curves,potentiodynamic polarization curves and EIS.The results show that the rusting behavior and electrochemical properties are significantly different for specimens with various oxide scales,indicating that the scale composition and structure affect the rusting behavior of hot-rolled steel plates greatly.The relationship between 糖心产精国品免费入口*完整版 and its 糖心产精国品免费入口*完整版is also discussed in the present paper.
中图分类号 TG174
所属栏目 试验研究
基金项目
收稿日期 2008/11/4
修改稿日期 2008/11/20
网络出版日期
作者单位
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引用该论文: SONG Lu-lu,QI Hui-bin,WU Yi-xiong,WANG Wei,QIAN Yu-hai. The Structure Change and Corrosion Protectivity of the Oxide Scale on An SS400 Hot-rolled Steel Plate[J]. Corrosion & Protection, 2009, 30(12): 903～908
被引情况:
【1】 张健平,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,宓小川,李明, "GL-A32和B610E板坯再热温度下的氧化行为",腐蚀与防护 32, 99-102(2011)
【2】 谷荣坤,王鸿,宋义全, "氧化皮对Q235碳钢腐蚀行为的影响",腐蚀与防护 35, 52-55(2014)
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参考文献
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【4】 Vladimir V Basabe,Jerzy A Szpunar.Growth rate and phase composition of oxide scales during hot rolling of low carbon steel[J].ISIJ International,2004,44(9):1554-1559.
【5】 Chen R Y,Yuen W Y D.Oxidation of low-carbon,low-silicon mild steel at 450 ℃~900 ℃ under conditions relevant to hot-strip processing[J].Oxidation of Metals,2002,57(1/2):53-79.
【6】 Chen R Y,Yuen W Y D.Effects of finishing and coiling temperatures on the scales structure and picklability of hot rolled strip[C]//ISS41st Mechanical Working and Steel Processing Conference,1999.
【7】 Chen R Y,Yuen W Y D,Hull R.Effects of hot rolling conditions and scale breaking on the pickling performance of Hot-rolled steel strip[J].SEAISI Quarterly,2000,7:68-82.
【8】 Chen R Y,Yuen W Y D.Improvement of pickling characteristics of hot-rolled strip through 糖心产精国品免费入口*完整版 of the oxide scale[J].Iron and Steelmaker,2003,30(3):17-22.
【9】 糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,等.SS400碳钢氧化层在N2气中糖心产精国品免费入口*完整版的相变规律[C]//台湾花莲:第六届海峡两岸材料腐蚀与防护研讨会,2008.
【10】 张鉴清,曹楚南.电化学阻抗谱导论[C]//北京:科学出版社,2002:45-75.
【2】 Qi Huibin,Qian Yuhai,Wang Wei,et al.“Quartus Scale” of hot-rolled strip steels and its formation mechanism[J].Baosteel Technical Research,2007,1(1):42-54.
【3】 Chen R Y,Yuen W Y D.Oxide-scale structures formed on commercial hot-rolled steel strip and their formation mechanisms[J].Oxidation of Metals,2001,56(1/2):89-118.
【4】 Vladimir V Basabe,Jerzy A Szpunar.Growth rate and phase composition of oxide scales during hot rolling of low carbon steel[J].ISIJ International,2004,44(9):1554-1559.
【5】 Chen R Y,Yuen W Y D.Oxidation of low-carbon,low-silicon mild steel at 450 ℃~900 ℃ under conditions relevant to hot-strip processing[J].Oxidation of Metals,2002,57(1/2):53-79.
【6】 Chen R Y,Yuen W Y D.Effects of finishing and coiling temperatures on the scales structure and picklability of hot rolled strip[C]//ISS41st Mechanical Working and Steel Processing Conference,1999.
【7】 Chen R Y,Yuen W Y D,Hull R.Effects of hot rolling conditions and scale breaking on the pickling performance of Hot-rolled steel strip[J].SEAISI Quarterly,2000,7:68-82.
【8】 Chen R Y,Yuen W Y D.Improvement of pickling characteristics of hot-rolled strip through 糖心产精国品免费入口*完整版 of the oxide scale[J].Iron and Steelmaker,2003,30(3):17-22.
【9】 糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,等.SS400碳钢氧化层在N2气中糖心产精国品免费入口*完整版的相变规律[C]//台湾花莲:第六届海峡两岸材料腐蚀与防护研讨会,2008.
【10】 张鉴清,曹楚南.电化学阻抗谱导论[C]//北京:科学出版社,2002:45-75.
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