High Temperature Chloride Corrosion Behavior of 904L:AlFeNiMoNb High-Entropy Alloy
In order to obtain high cost-effective coating materials working in chlorine-containing environment at high temperature, a 904L super austenitic alloy modified by an AlFeNiMoNb alloy (904L:AlFeNiMoNb) was obtained by vacuum arc melting process. The 904L:AlFeNiMoNb high-entropy alloy has a similar ph...
Guardado en:
| Autores principales: | , , , , , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Frontiers Media S.A.
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/b8556780c9b840d78e22d763ad5abc3c |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:b8556780c9b840d78e22d763ad5abc3c |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:b8556780c9b840d78e22d763ad5abc3c2021-11-11T09:43:58ZHigh Temperature Chloride Corrosion Behavior of 904L:AlFeNiMoNb High-Entropy Alloy2296-801610.3389/fmats.2021.764928https://doaj.org/article/b8556780c9b840d78e22d763ad5abc3c2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmats.2021.764928/fullhttps://doaj.org/toc/2296-8016In order to obtain high cost-effective coating materials working in chlorine-containing environment at high temperature, a 904L super austenitic alloy modified by an AlFeNiMoNb alloy (904L:AlFeNiMoNb) was obtained by vacuum arc melting process. The 904L:AlFeNiMoNb high-entropy alloy has a similar phase component with the AlFeNiMoNb alloy, but a more homogenous microstructure than that of the AlFeNiMoNb alloy. High-temperature chloride corrosion tests for 904L, AlFeNiMoNb, and 904L:AlFeNiMoNb high-entropy alloy were carried out under N2–2.6 vol.% CO2–1.3 vol.% O2–2,700 vppm HCl gaseous environment at 700°C and 800°C for 55 h, respectively. Due to the volatilization of FeCl2, weight change curves of the 904L alloy at 700°C and 800°C showed obvious weight loss. Especially at 800°C, the weight loss of the corroded 904L sample was 10 times that of the corroded sample at 700°C. Different from the weight loss situation of the 904L sample, both AlFeNiMoNb and 904L:AlFeNiMoNb high-entropy alloy showed small weight gains under the corrosion temperature of 700°C, while the latter gained half as much weight as the former. When the corrosion temperature was raised to 800°C, the AlFeNiMoNb and 904L:AlFeNiMoNb high-entropy alloy showed flat weight change curves with little weight loss. Weight loss for the AlFeNiMoNb and 904L:AlFeNiMoNb high-entropy alloy were 1.35138 and 0.0118 mg/cm2, respectively. The high temperature chloride corrosion resistance of 904L:AlFeNiMoNb high-entropy alloy is higher than that of 904L and AlFeNiMoNb at both 700°C and 800°C. Meanwhile, on the basis of the morphology and composition results of the corroded samples, combined with thermodynamic calculation, the high-temperature chloride corrosion mechanics of the tested alloys were discussed.Lingyun BaiLingyun BaiWenyi PengDandan MenJun ZhuXuecheng WuXiongtao ShiJunhuan XiangXiaohua DengYuqing WangZuxiang SunSiqi YuXiang WeiFrontiers Media S.A.articlehigh temperature chloride corrosion904L:AlFeNiMoNb highentropy alloycorrosion kineticsactive oxidationcorrosion mechanicsTechnologyTENFrontiers in Materials, Vol 8 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
high temperature chloride corrosion 904L:AlFeNiMoNb highentropy alloy corrosion kinetics active oxidation corrosion mechanics Technology T |
| spellingShingle |
high temperature chloride corrosion 904L:AlFeNiMoNb highentropy alloy corrosion kinetics active oxidation corrosion mechanics Technology T Lingyun Bai Lingyun Bai Wenyi Peng Dandan Men Jun Zhu Xuecheng Wu Xiongtao Shi Junhuan Xiang Xiaohua Deng Yuqing Wang Zuxiang Sun Siqi Yu Xiang Wei High Temperature Chloride Corrosion Behavior of 904L:AlFeNiMoNb High-Entropy Alloy |
| description |
In order to obtain high cost-effective coating materials working in chlorine-containing environment at high temperature, a 904L super austenitic alloy modified by an AlFeNiMoNb alloy (904L:AlFeNiMoNb) was obtained by vacuum arc melting process. The 904L:AlFeNiMoNb high-entropy alloy has a similar phase component with the AlFeNiMoNb alloy, but a more homogenous microstructure than that of the AlFeNiMoNb alloy. High-temperature chloride corrosion tests for 904L, AlFeNiMoNb, and 904L:AlFeNiMoNb high-entropy alloy were carried out under N2–2.6 vol.% CO2–1.3 vol.% O2–2,700 vppm HCl gaseous environment at 700°C and 800°C for 55 h, respectively. Due to the volatilization of FeCl2, weight change curves of the 904L alloy at 700°C and 800°C showed obvious weight loss. Especially at 800°C, the weight loss of the corroded 904L sample was 10 times that of the corroded sample at 700°C. Different from the weight loss situation of the 904L sample, both AlFeNiMoNb and 904L:AlFeNiMoNb high-entropy alloy showed small weight gains under the corrosion temperature of 700°C, while the latter gained half as much weight as the former. When the corrosion temperature was raised to 800°C, the AlFeNiMoNb and 904L:AlFeNiMoNb high-entropy alloy showed flat weight change curves with little weight loss. Weight loss for the AlFeNiMoNb and 904L:AlFeNiMoNb high-entropy alloy were 1.35138 and 0.0118 mg/cm2, respectively. The high temperature chloride corrosion resistance of 904L:AlFeNiMoNb high-entropy alloy is higher than that of 904L and AlFeNiMoNb at both 700°C and 800°C. Meanwhile, on the basis of the morphology and composition results of the corroded samples, combined with thermodynamic calculation, the high-temperature chloride corrosion mechanics of the tested alloys were discussed. |
| format |
article |
| author |
Lingyun Bai Lingyun Bai Wenyi Peng Dandan Men Jun Zhu Xuecheng Wu Xiongtao Shi Junhuan Xiang Xiaohua Deng Yuqing Wang Zuxiang Sun Siqi Yu Xiang Wei |
| author_facet |
Lingyun Bai Lingyun Bai Wenyi Peng Dandan Men Jun Zhu Xuecheng Wu Xiongtao Shi Junhuan Xiang Xiaohua Deng Yuqing Wang Zuxiang Sun Siqi Yu Xiang Wei |
| author_sort |
Lingyun Bai |
| title |
High Temperature Chloride Corrosion Behavior of 904L:AlFeNiMoNb High-Entropy Alloy |
| title_short |
High Temperature Chloride Corrosion Behavior of 904L:AlFeNiMoNb High-Entropy Alloy |
| title_full |
High Temperature Chloride Corrosion Behavior of 904L:AlFeNiMoNb High-Entropy Alloy |
| title_fullStr |
High Temperature Chloride Corrosion Behavior of 904L:AlFeNiMoNb High-Entropy Alloy |
| title_full_unstemmed |
High Temperature Chloride Corrosion Behavior of 904L:AlFeNiMoNb High-Entropy Alloy |
| title_sort |
high temperature chloride corrosion behavior of 904l:alfenimonb high-entropy alloy |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/b8556780c9b840d78e22d763ad5abc3c |
| work_keys_str_mv |
AT lingyunbai hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT lingyunbai hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT wenyipeng hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT dandanmen hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT junzhu hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT xuechengwu hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT xiongtaoshi hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT junhuanxiang hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT xiaohuadeng hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT yuqingwang hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT zuxiangsun hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT siqiyu hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy AT xiangwei hightemperaturechloridecorrosionbehaviorof904lalfenimonbhighentropyalloy |
| _version_ |
1718439253019459584 |