缪筱玲,刘光明,于斐,汪元奎.超超临界锅炉用TP310HCbN 不锈钢的热腐蚀行为研究[J].表面技术,2012,(3):37-39，56.
MIAO Xiao-ling,LIU Guang-ming,YU Fei,WANG Yuan-kui.Hot Corrosion Behavior of TP310HCbN Stainless Steel for USC Boiler[J].Surface Technology,2012,(3):37-39，56 |
| 超超临界锅炉用TP310HCbN 不锈钢的热腐蚀行为研究 |
| Hot Corrosion Behavior of TP310HCbN Stainless Steel for USC Boiler |
| 投稿时间：2012-02-16 修订日期：2012-06-20 |
| DOI： |
| 中文关键词: 超超临界锅炉 TP310HCbN 不锈钢 热腐蚀 Na2SO4-K2SO4-KCl熔盐 |
| 英文关键词:USC boiler TP310HCbN stainless steel hot corrosion Na2SO4-K2SO4-KCl melts |
| 基金项目:国家自然科学基金(51161022)中文基金项目 |
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| Author | Institution |
| MIAO Xiao-ling | Material Research Institute, Dongfang Boiler Group Co., Ltd., Zigong 643001, China |
| LIU Guang-ming | Material Research Institute, Dongfang Boiler Group Co., Ltd., Zigong 643001, China |
| YU Fei | Material Research Institute, Dongfang Boiler Group Co., Ltd., Zigong 643001, China |
| WANG Yuan-kui | Material Research Institute, Dongfang Boiler Group Co., Ltd., Zigong 643001, China |
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| 中文摘要: |
| 以80%Na2SO4+10%K2SO4+10%KCl混合熔融盐为热腐蚀介质,研究了TP310HCbN 奥氏体不锈耐热钢在600℃,650℃和700℃下的热腐蚀行为。结果表明:在600℃和650℃下,腐蚀失重轻微,热腐蚀过程中腐蚀产物从样品表面剥落,样品晶界发现大量硫化物,并有明显的晶间腐蚀倾向;在700℃下,样品失重加速,腐蚀产物剥落严重。利用XRD和SEM 分析样品经热腐蚀后的表面成分和结构,腐蚀产物主要由Fe3O4 和(Fe,Cr) 2O3 组成,并含有少量的NiCr2O4 和Cr2S3。 |
| 英文摘要: |
| The hot corrosion behavior of TP310HCbN austenitic heat resistant stainless steel were studied in 80%Na2SO4 + 10%K2SO4 + 10%KCl molten salts at 600 ℃, 650 ℃ and 700 ℃, respectively. The result showed that when the samples were tested at 600 ℃ and 650 ℃ sulfides was detected at the grain boundaries of substrate, which manifested that intergranular corrosion was occurred. However, when the sample corroded at 700℃ the corrosion products spalled from sample surface on a large scale, which led to serious mass loss during the tests. The surface morphology, microstructures and composition of corroded samples were examined by SEM/EDS and XRD. The corroded products on the samples surface were mainly composed of Fe3O4 and(Fe,Cr)2O3 with small amount of NiCr2O4 and Cr2S3. |
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