金属学报  2004, Vol. 40 Issue (2): 185-190

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(Al，Mn)3Ti-2V金属间化合物的热腐蚀研究

金光熙;李金许;齐慧滨;乔利杰;高克玮;桥本健纪;褚武扬

北京科技大学材料物理系; 北京 100083;日本学术振兴会; 东京 102--8471; 日本

Investigation of Hot Corrosion of (Al，Mn)3Ti-2V Intermetallics

JIN Guangxi; LI Jinxu; QI Huibin; QIAO Lijie; GAO Kewei; HASHIMOTO Kenki; CHU Wuyang

Department of Materials Physics; University of Science and Technology Beijing; Beijing 100083; Japan Society for the Promotion of Science; Tokyo 102-8471; Japan

金光熙; 李金许; 齐慧滨; 乔利杰; 高克玮; 桥本健纪; 褚武扬 . (Al，Mn)3Ti-2V金属间化合物的热腐蚀研究[J]. 金属学报, 2004, 40(2): 185-190 .
, , , , , , . Investigation of Hot Corrosion of (Al，Mn)3Ti-2V Intermetallics[J]. Acta Metall Sin, 2004, 40(2): 185-190 .

摘要 参考文献 相关文章 Metrics 全文: PDF(8222 KB)   摘要: 研究了(Al，Mn)3Ti-2V和TiAl在900 ℃的(Na, K) 2SO4以及850 ℃的Na2SO4+NaCl熔盐中的热腐蚀行为. 结果表明, (Al，Mn)3Ti-2V在(Na, K) 2SO4中的耐蚀性很好, 腐蚀产物膜很薄, 外层是保护性的Al2O3, 内层是Al2O3+TiO2+TiS的混合膜. 当熔盐中存在NaCl时, (Al，Mn)3Ti-2V的耐蚀性极差, 腐蚀产物的厚度比在(Na, K) 2SO4中大100多倍, 且具有分层结构, 最外层富MnO(含少量Al2O3和TiO2), 第二层为Al2O3+少量TiS, 第三层为TiO2+TiS, 由于不能形成保护性的Al2O3层, 腐蚀产物极易剥落. 关键词 ： 热腐蚀,  Na2SO4,       Abstract：Hot corrosion behaviors of (Al, Mn)3Ti-2V and TiAl in (Na, K)2SO4 melt at 900℃ and in Na2SO4+NaCl melt at 850℃ were studied respectively. The cross-sectional morphologies and profiles of elements in the scale formed on (Al, Mn)3Ti-2V show that (Al, Mn)3Ti-2V has excellent hot corrosion resistance in (Na, K)2SO4 melt. The thin scale consists of an outer protective Al2O3 layer and an inner mixture layer of Al2O3, TiO2 and TiS. When NaCl was added in the Na2SO4 salts, however, the hot corrosion resistance of the (Al, Mn)3Ti-2V becomes very poor. The scale is thicker than that in the absence of NaCl by one hundred times of magnitude at least. The scale consists of three layers: an outer layer consisting of porous MnO plus a little Al2O3+TiO2, a middle layer of porous Al2O3 plus trace amount of TiS, and an inner layer of TiO2+TiS. Key words： hot corrosion    Na2SO4 收稿日期: 2003-03-17      ZTFLH:  TG172.62   服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 金光熙 李金许 齐慧滨 乔利杰 高克玮 桥本健纪 褚武扬 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2004/V40/I2/185 [1] Raman A, Schubert K. Z Metallkd, 1965; 56: 40 [2] Chen X F, Wu X H, Chen S P, Hu G X. Scr Metall Mater, 1992: 26: 1775 [31 Hashimoto K. National Research Institute for Metals Research Activities, Japan, 2000: 30 [4] Jin G X, Kimura T, Gao K W, Hashimoto K, Qiao L J. Mater Trans JIM, 2002; 43: 2600 [5] Trethewey K R, Chamberlain J. Corrosion. Essex, England: Longman Group UK Limited. 1988: 352 [6] Yao Z, Marck M. Mater Sci Eng, 1995: A192/193: 994 [7] Nicholls J R, Legget T, Andrews P. Mater Corrs. 1997: 48: 56 [8] Tang Z L, Wang F H, Wu W T. Oxid Met, 1999; 51: 314 [9] Hara M, Hieda D, Hinata Y. J Jpn Inst Met, 1999; 63: 1238(原基,稗田大辅,日向幸昌.日本金属学会志,1999;63:1238) [10] Gocbel J A, Pettit F S, Goward G W. Metall Trans, 1973; 4: 265 [11] Jose P D, Gupta D K, Rapp A. J Electrochem Soc, 1985; 132: 735 [1] 金光熙; 乔利杰; 高克玮; 木村隆; 桥本健纪; 褚武扬 . Mn和V对TiAl合金热腐蚀的影响[J]. 金属学报, 2004, 40(2): 179-184 . [2] 曾潮流; 王文 . Fe-Cr合金在650℃熔融（Li-K）2CO3中的腐蚀行为[J]. 金属学报, 2000, 36(6): 651-654 . [3] 曾潮流 . Ni-Ti合金在熔融（Li, K）2CO3中的腐蚀行为研究[J]. 金属学报, 2000, 36(5): 517-520 . Viewed Full text Abstract Cited   Shared      Discussed