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High-Temperature Oxidation Resistance of Alumina-Forming Austenitic Stainless Steels Optimized by Refractory Metal Alloying
Zhang, Shuqi1; Dong, Dandan2; Wang, Qing1; Dong, Chuang1; Yang, Rui3
Corresponding AuthorDong, Chuang(dong@dlut.edu.cn)
2021-02-01
Source PublicationMETALS
Volume11Issue:2Pages:18
AbstractAlumina-forming austenitic stainless steels are known for their superior high-temperature oxidation resistance. Following our previous work that solved the matching of major alloying elements in their specific 16-atom cluster formula, we here focus on the 800 degrees C air-oxidation resistance of 0.08 wt. % C alloy series satisfying cluster formula [(Al0.89Si0.05NbxTa0.06-x)-(Fe11.7-yNiyMn0.3)]Cr3.0-z(Mo,W)(z), x = 0.03 or 0.06, y = 3.0 or 3.2, z = 0.07 or 0.2, to explore the effect of minor alloying elements Mo, Nb, Ta and W. This cluster formula is established particularly based on alloys which were originally developed by Oak Ridge National Laboratory. All samples are graded as complete oxidation resistance level according to Chinese standard HB 5258-2000, as their oxidation rate and oxidation-peeling mass are generally below 0.1 g/m(2) x h and 1.0 g/m(2), respectively. In alloys without Ta and W, a Cr2O3-type oxide layer is formed on the surface and Al2O3 particles of sizes up to 4 mu m are distributed beneath it. In contrast, in Ta/W-containing alloys, a continuous protective Al2O3 layer is formed beneath the outer Cr2O3 layer, which prevents internal oxidation and provides the lowest weight gain. Instead of internal Al2O3 particles, AlN is formed in Ta/W-containing alloys. The W-containing alloy possesses the thinnest internal nitride zone, indicating the good inhibition effect of W on nitrogen diffusion.
KeywordAFA stainless steels cluster-plus-glue-atom model high-temperature oxidation resistance alloying
Funding OrganizationNational Natural Science Foundation of China ; State Key Lab of Advanced Metals and Materials ; Science Challenge Project
DOI10.3390/met11020213
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51801017] ; National Natural Science Foundation of China[11674045] ; State Key Lab of Advanced Metals and Materials[2018-Z03] ; Science Challenge Project[TZ2016004]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000622785700001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160951
Collection中国科学院金属研究所
Corresponding AuthorDong, Chuang
Affiliation1.Dalian Univ Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China
2.Dalian Univ, Coll Phys Sci & Technol, Dalian 116622, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Shuqi,Dong, Dandan,Wang, Qing,et al. High-Temperature Oxidation Resistance of Alumina-Forming Austenitic Stainless Steels Optimized by Refractory Metal Alloying[J]. METALS,2021,11(2):18.
APA Zhang, Shuqi,Dong, Dandan,Wang, Qing,Dong, Chuang,&Yang, Rui.(2021).High-Temperature Oxidation Resistance of Alumina-Forming Austenitic Stainless Steels Optimized by Refractory Metal Alloying.METALS,11(2),18.
MLA Zhang, Shuqi,et al."High-Temperature Oxidation Resistance of Alumina-Forming Austenitic Stainless Steels Optimized by Refractory Metal Alloying".METALS 11.2(2021):18.
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