| TP347 H在生物质锅炉过热器气相条件下的腐蚀特性(Ⅰ) |
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| 引用本文： | 印佳敏,吴占松. TP347 H在生物质锅炉过热器气相条件下的腐蚀特性(Ⅰ)[J]. 热力发电, 2009, 38(7). DOI: 10.3969/j.issn.1002-3364.2009.07.027 |
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| 作者姓名： | 印佳敏 吴占松 |
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| 作者单位： | 清华大学热科学与动力工程教育部重点实验室,北京,100084 |
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| 摘 要： | 模拟生物质锅炉过热器区的气相条件,在500～600℃范围内对奥氏体不锈钢TP347H进行了腐蚀试验.通过试样的增重量,得出了腐蚀动力学曲线.利用配有能谱分析仪的扫描电镜和X射线衍射仪对试样腐蚀后的形貌结构、元素含量和腐蚀产物的组成成分进行了分析.试验表明,TP347H的耐腐蚀性很好,但是对反应温度和气相中HCI的浓度非常敏感,并且随着反应温度和HCl浓度的增加,TP347H的抗腐蚀性能逐渐降低.
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| 关 键 词： | 生物质锅炉 过热器 高温腐蚀 |
CORROSIVE CHARACTORS OF TP347H STEEL IN SUPERHEATER 'S ATMOSPHERE OF BIOMASS-BURNED BOILER |
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| YIN Jia-min,WU Zhan-song. CORROSIVE CHARACTORS OF TP347H STEEL IN SUPERHEATER 'S ATMOSPHERE OF BIOMASS-BURNED BOILER[J]. Thermal Power Generation, 2009, 38(7). DOI: 10.3969/j.issn.1002-3364.2009.07.027 |
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| Authors: | YIN Jia-min WU Zhan-song |
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| Abstract: | A corrosion test of austenitic stainless steel TP347H has been carried out in the temperature range of 500～600 ℃, simulating the atmospheric condition in superheater's zone of biomass-burned boiler. Through mass gain of the specimans,the corrosive dynamic curves have been obtained. The ap-pearance and structure,the element's content,and the composition of corrosion products of specimans after corrosion have been analysed by using scanning electron microscope (SEM) coordinated with en-ergy dispersive spectrometer (EDS) and X-ray diffraction (XRD) meter. Results of test show that the corrosion-resistant behavior of TP347H steel is very good, hut it is extremly sensitive to the reaction temperature and concentration of HCI in the gas-phase. The anti-corrosion performance of said steel decreases with increasing of the reaction temperature and concentration of HCl. |
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| Keywords: | HCl TP347H biomass-burned boiler superheater high-temperature corrosion HCl TP347 H steel |
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