290-abstract-p-普碳鋼熱軋板顯微結(jié)構(gòu)對(duì)酸洗速度的影響

1、普碳鋼熱軋板顯微結(jié)構(gòu)對(duì)酸洗速度的影響寶鋼股份技術(shù)中心肖新星李健摘要：兩種熱軋工藝造成后期處理前的熱軋板酸洗周期有很大差別。對(duì)比酸腐蝕前后熱軋板橫截面氧化皮的金相圖像，可以看到明顯的雙層結(jié)構(gòu)。而且，氧化皮外層的厚度直接影響到酸洗速度。將拋光后試樣運(yùn)用原子力顯微鏡磁力模式對(duì)其進(jìn)行精細(xì)掃描，磁圖中顯示外層氧化鐵皮有磁性，而內(nèi)層氧化皮沒(méi)有表征出明顯的鐵磁性特征；分別將兩種氧化鐵皮粉末進(jìn)行X射線衍射分析，從顯微分析層面上給出了兩種氧化鐵皮的成分分

2、布的差異。普碳鋼熱軋板氧化鐵皮的顯微結(jié)構(gòu)特征是影響熱軋板表面質(zhì)量的重要因素。關(guān)鍵詞：氧化鐵皮關(guān)鍵詞：氧化鐵皮熱軋板熱軋板酸洗酸洗ANALYSISOFSCALEMICROSTRUCTUREOFHOTROLLEDSTRIPSTEELINFLUENCETOPICKINGPROCESSBaoshanIron&SteelCo.LtdR&DCenterXinxingXiaoJianLiTwokindsofhotrollingprocessledto

3、twoapparentdifferentdurationofpicklingprocessinstripsteelpritotheposttreatment.Comparingthemetallographicimagesoftheetchedscalestouchedscalesdoublelayersstructureoftheoxidescalewasobservedthepicklingprocessofscalewasaffe

4、ctedbythethicknessoftheouterlayerscale.MeoverMagicFceMode(MFM)ofAtomicFceMicroscope(AFM)showedmagicdomainstructureontheouterlayernonmagicstructureoninnerlayerofthescale.BymeansoftheXRDanalysisthephasecomponentsoftheoxide

5、scalesfrombothhotrollingprocesswereobtained.Thescalemicrostructureofhotrolledstripsteelsisanimptangtfactaboutthesteelsurfacequality.Keywds:OxidescaleHotrolledStripSteelPickling普碳鋼熱軋板顯微結(jié)構(gòu)對(duì)酸洗速度的影響寶鋼股份技術(shù)中心肖新星李健摘要：兩種熱軋工藝造成后期

6、處理前的熱軋板酸洗周期有很大差別。對(duì)比酸腐蝕前后熱軋板橫截面氧化皮的金相圖像，可以看到明顯的雙層結(jié)構(gòu)。而且，氧化皮外層的厚度直接影響到酸洗速度。將拋光后試樣運(yùn)用原子力顯微鏡磁力模式對(duì)其進(jìn)行精細(xì)掃描，磁圖中顯示外層氧化鐵皮有磁性，而內(nèi)層氧化皮沒(méi)有表征出明顯的鐵磁性特征；分別將兩種氧化鐵皮粉末進(jìn)行X射線衍射分析，從顯微分析層面上給出了兩種氧化鐵皮的成分分布的差異。普碳鋼熱軋板氧化鐵皮的顯微結(jié)構(gòu)特征是影響熱軋板表面質(zhì)量的重要因素。關(guān)鍵詞：氧化

7、鐵皮關(guān)鍵詞：氧化鐵皮熱軋板熱軋板酸洗酸洗ANALYSISOFSCALEMICROSTRUCTUREOFHOTROLLEDSTRIPSTEELINFLUENCETOPICKINGPROCESSBaoshanIron&SteelCo.LtdR&DCenterXinxingXiaoJianLiTwokindsofhotrollingprocessledtotwoapparentdifferentdurationofpicklingproces

8、sinstripsteelpritotheposttreatment.Comparingthemetallographicimagesoftheetchedscalestouchedscalesdoublelayersstructureoftheoxidescalewasobservedthepicklingprocessofscalewasaffectedbythethicknessoftheouterlayerscale.Meove

9、rMagicFceMode(MFM)ofAtomicFceMicroscope(AFM)showedmagicdomainstructureontheouterlayernonmagicstructureoninnerlayerofthescale.BymeansoftheXRDanalysisthephasecomponentsoftheoxidescalesfrombothhotrollingprocesswereobtained.