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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Ti_3Al及其渗铝涂层的热腐蚀性能
, PP. 114-118
Keywords: Ti_3Al,金属间化合物,渗铝,熔盐热腐蚀,电化学
Abstract:
采用电化学方法并结合各种物相分析技术研究了Ti_3Al金属间化合物在熔融(Na,K)_2SO_4-NaCl中的热腐蚀行为及渗铝涂层对其耐蚀性能的影响。结果表明,Ti_3Al耐热腐蚀性能较差。形成了外层为TiO_2,中间层为富铝的TiO_2-Al_2O_3复合层,内层为富铌的Nb_2O_5-TiO_2-Al_2O_3层的三层结构。渗铝涂层能在合金表面形成Al_2O_3氧化膜而明显改善Ti_3Al的耐蚀性能。
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