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几种钴基合金在Na_2SO_4-K_2SO_4混合盐中高温腐蚀行为 被引量:4

High Temperature Corrosion Behaviors of Some Cobalt-base Alloy in Na2SO4-K2SO4 Salts Mixture
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摘要 本文对Co-30Cr、Co-30Cr-4Al、Co-25Cr-10Ni-4Al-5Ta-0.5Y3种合金在900℃与Na_2SO_4-K_2SO_4混合盐接触条件下的腐蚀进行了研究。结果表明,内硫化-内氧化是主要的破坏形式。Co-30Cr合金腐蚀程度最严重,富铬的内硫化物深入合金基体很深的部位。Co-30Cr-4Al合金中观察到一层细小的富铝内氧化物,通过35S放射性同位素示踪技术探测到了硫对合金基体的侵入。Co-25Cr-10Ni-4Al-5Ta-0.5Y合金中观察到少量富铝的内氧化物,且同时出现钽的富集。 High temperature corrosion behaviors of alloy Co-30Cr, Co-30Cr-4A1 and Co-25Cr-loNi-4Al-5Ta-0.5Y has been studied at the presence of Na2SO4-K2SO4 salts mixture. The experimental results showed the internal sulfidation-internal oxidation to be the major mode of attack. Much severe attack is found in alloy Co-30Cr, and sulfide rich in Cr developed deep in the alloy matrix. Fine inner oxide precipitates rich in Al is found in alloy Co-30Cr-4Al, and sulfur penetration is detected by S radioisotope method. Little inner oxide precipitates rich in Al is found in alloy associated with Co-25Cr-10Ni-4Al-5Ta-0.5Y.
出处 《北京科技大学学报》 EI CAS CSCD 北大核心 1990年第2期119-124,共6页 Journal of University of Science and Technology Beijing
关键词 钴基合金 高温腐蚀 硫酸盐 high temperature corrosion, cobalt-base alloy, sulfide
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  • 1秦紫瑞,李隆盛,姚曼.HastelloyC型铸造镍基合金的析出相及其对合金腐蚀行为的影响[J].材料工程,1995,23(9):18-21. 被引量:18
  • 2常晓亮,王旭,王兰芳,张俊善,祝美丽.316L不锈钢在熔融LiCl-3%Li_2O中的腐蚀行为[J].机械工程材料,2007,31(4):11-13. 被引量:6
  • 3MASAOSHI K, TAKUYA N, AKIO S. Metallurgical study on corrosion of austenitie steels in molten salt LiF-BeF2 (Flibe) [J]. Journal of Nuclear Materials, 2009,386/388 : 685-688.
  • 4冈毅民.高钼镍基合金在熔盐中脱溶腐蚀的研究.中国腐蚀与防护学报,1981,1(3):64-71.
  • 5OLSON L C, AMBROSEK J W, SRIDHARAN K. Materials corrosion in molten LiF-NaF-KF salt[J]. Journal of Fluorine Chemistry, 2009,130:67-73.
  • 6Misra A K,Whittenberger J D. Fluoride salts and container materials for thermal energy storage application in the temperature range 973K to 1400K[C]//Proceedings of the 22nd Intersociety Energy Conversion Engineering Conference, the AIAA ANS ASME SAE IEEE ACS and AIChE Philadelphia, PA, 10-14 Au- gust, 1987, AIAA-87-9226.
  • 7Olson Luke C, Ambrosek James W, Sridharan Kumar. Materials corrosion in molten LiF-NaFKF salt [J]. J ournai of Fluorine Chemistry, 2009,130 :67-- 73.
  • 8何亚东,齐慧滨.材料腐蚀与防护概论[M].北京:机械工业出版社,2005.
  • 9Cho S H,Zhang J S,Shins Y J, et al. Corrosion behav- ior and effect of alloying element of Febased and Ni- based superalloys in molten salts of LiC1 and I.iC1-Li2O [J]. Korean Journal of Materials Research, 1999, 9 (9) :985-991.
  • 10Olson I. C, Ambrosek J W,Sridharan K,et al. Materials corrosion in molten I.iF-NaF KF salt[J]. Journal of Fluorine Chemistry, 2009,130( 1 ) : 67- 73.

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