| PROTECTION AND DAMAGE OF PREFORMED OXIDE SCALES OF Fe-25Cr-5Al AND-10Al ALLOYS DURING THEIR SUBSEQUENT SULFIDATION |
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| 引用本文： | Qi,Huibin,Zhu,Rizhang,He,Yedong,Wang,Shujuan (Department of Surface Science and Corrosion Engineering,University of Science and Technology Beijing,Beijing100083). PROTECTION AND DAMAGE OF PREFORMED OXIDE SCALES OF Fe-25Cr-5Al AND-10Al ALLOYS DURING THEIR SUBSEQUENT SULFIDATION[J]. 中国有色金属学会会刊, 1994, 0(4) |
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| 作者姓名： | Qi Huibin Zhu Rizhang He Yedong Wang Shujuan (Department of Surface Science and Corrosion Engineering University of Science and Technology Beijing Beijing100083) |
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| 作者单位： | Department of Surface Science and Corrosion Engineering，University of Science and Technology Beijing，Beijing100083 |
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| 摘 要： | ＰＲＯＴＥＣＴＩＯＮＡＮＤＤＡＭＡＧＥＯＦＰＲＥＦＯＲＭＥＤＯＸＩＤＥＳＣＡＬＥＳＯＦＦｅ－２５Ｃｒ－５ＡｌＡＮＤ－１０ＡｌＡＬＬＯＹＳＤＵＲＩＮＧＴＨＥＩＲＳＵＢＳＥＱＵＥＮＴＳＵＬＦＩＤＡＴＩＯＮ￥Ｑｉ，Ｈｕｉｂｉｎ；Ｚｈｕ，Ｒｉｚｈａｎｇ；Ｈｅ...
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PROTECTION AND DAMAGE OF PREFORMED OXIDE SCALES OF Fe-25Cr-5Al AND-10Al ALLOYS DURING THEIR SUBSEQUENT SULFIDATION |
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| Qi,Huibin,Zhu,Rizhang,He,Yedong,Wang,Shujuan. PROTECTION AND DAMAGE OF PREFORMED OXIDE SCALES OF Fe-25Cr-5Al AND-10Al ALLOYS DURING THEIR SUBSEQUENT SULFIDATION[J]. Transactions of Nonferrous Metals Society of China, 1994, 0(4) |
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| Authors: | Qi Huibin Zhu Rizhang He Yedong Wang Shujuan |
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| Abstract: | The influence of preoxidation of Fe-25Cr-5Al and Fe-25Cr-10Al alloys on their subsequent sulfidation has been studied by a thermogravimetrical method. The oxidation-sulfidation procedure was decided according to the acoustic emission measurement results of the oxidizing-cooling processes. The transformation from oxidation to sulfidation at higk temperatures was achieved.As a result, the outstanding cracking of the oxide scale was avoided. It is found that a complete alumina scale can impede effectively the occurrence and the development of sulfidation. Its protection, however, has a concern with the alloy composition. The microdefects of oxide scale are the places where sulfide nodules appeared and grew. They are also the main factors to decide whether the preformed oxide scale be still protective. |
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| Keywords: | Fe-25Cr-5Al Fe-25Cr-10Al preoxidation sulfidation |
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