Influence of Ce Addition on Microstructure and Corrosion Resistance to Molten Aluminum of Fe-Cr-B Alloys

被引：1
|
作者：
Chen W. [1 ]
Li B. [1 ]
Ling Z. [1 ]
Fu Z. [1 ]
Zhang X. [2 ]
机构：
[1] Guangdong Key Laboratory for Advanced Metallic Materials Processing, South China University of Technology, Guangzhou
[2] College of Electrical and Mechanical Engineering, Hainan University, Haikou
来源：
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2021年 / 49卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Boride; Cerium; Fe-Cr-B alloy; Microstructure; Molten aluminum corrosion;
D O I：
10.12141/j.issn.1000-565X.200014
中图分类号：
学科分类号：
摘要：
Fe-Cr-B alloy has excellent corrosion resistance to molten aluminum, but its toughness is poor. In order to improve the toughness of Fe-Cr-B alloy, the influence of Ce addition (0~0.92%, mass fraction) on the microstructure, mechanical properties and corrosion resistance of Fe-Cr-B alloy in molten aluminum at 750℃ was investigated. The results show that the addition of Ce changes the boride structure in Fe-Cr-B alloy from a continuous network, dendritic and long rod-like structure to a short rod-like and block structure with less interconnection. With the Ce content increases, the alloy's impact toughness gradually increases, and the corrosion resistance to molten aluminum increases first and then decreases. The uniformly distributed short rod-like boride can improve the alloy's impact toughness while maintaining excellent corrosion resistance to molten aluminum. The Fe-Cr-B alloy with 0.59% Ce has the best comprehensive properties, its impact toughness is 187.97% higher than that of Ce-free, and its corrosion resistance to molten aluminum reaches 5.9 times that of typical die steel H13. © 2021, Editorial Department, Journal of South China University of Technology. All right reserved.
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页码：73 / 79
页数：6
相关论文
共 20 条
  • [1] ZHANG X, CHEN W., Review on corrosion-wear resistance performance of materials in molten aluminum and its alloys [J], Transactions of Nonferrous Metals Society of China, 25, 6, pp. 1715-1731, (2015)
  • [2] NAZARI K A, SHABESTARI S G., Effect of micro alloying elements on the interfacial reactions between molten aluminum alloy and tool steel [J], Journal of Alloys and Compounds, 478, 1, pp. 523-530, (2009)
  • [3] BOUCHE K, BARBIER F, COULET A., Intermetallic compound layer growth between solid iron and molten aluminium [J], Materials Science & Engineering A(Structural Materials:Properties, Microstructure and Processing), 249, 1, pp. 167-175, (1998)
  • [4] REZAEI H, AKBARPOUR M R, SHAHVERDI H R., Effects of interfacial layers fracture on the dissolution mechanism of solid Fe in liquid Al [J], JOM, 67, 7, pp. 1443-1450, (2015)
  • [5] LUO Hongfeng, WU Jing, CHEN Weiping, Research and development of corrosion resistant materials in molten aluminum, Materials Reports, 24, 7, pp. 75-80, (2010)
  • [6] TANG N, LI Y, KOIZUMI Y, Et al., Experimental and theoretical research on interfacial reaction of solid Co with liquid Al [J], Corrosion Science, 73, pp. 54-61, (2013)
  • [7] CHEN Weiping, FANG Sicong, ZENG Yong, Et al., Corrosion-wear resistant performance and mechanisms of tungsten and H13 steel in molten aluminum, The Chinese Journal of Nonferrous Metals, 23, 11, pp. 119-126, (2013)
  • [8] LOPEZ A J, RAMS J., Protection of carbon steel against molten aluminum attack and high temperature corrosion using high velocity oxygen-fuel WC-Co coatings [J], Surface & Coatings Technology, 262, pp. 123-133, (2015)
  • [9] TUNTHAWIROON P, LI Y, TANG N, Et al., Enhancement of corrosion resistance of Fe-Cr-Mo alloy to molten Al by thermal oxidation in air [J], Corrosion Science, 77, pp. 97-102, (2013)
  • [10] TSIPAS D N, TRIANTAFYLLIDIS G K, KIPLAGAT J K, Et al., Degradation behaviour of boronized carbon and high alloy steels in molten aluminium and zinc [J], Materials Letters, 37, 3, pp. 128-131, (1998)
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