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中国腐蚀与防护学报  2014, Vol. 34 Issue (6): 502-506    DOI: 10.11902/1005.4537.2013.232
  论文 本期目录 | 过刊浏览 |
4种改性的铝化物涂层对DZ38G合金热腐蚀性能的影响
吴多利, 张洪宇, 韦华, 郑启, 金涛, 孙晓峰
中国科学院金属研究所 沈阳 110016
Hot Corrosion Behavior of Four Modified Aluminide Coatings on DZ38G Alloy
WU Duoli, ZHANG Hongyu, WEI Hua, ZHENG Qi, JIN Tao, SUN Xiaofeng
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
全文: PDF(6251 KB)   HTML
摘要: 在DZ38G高温合金表面制备了NiCr-CrAl,Co-Al,Al-Si和Al-Ti 4种改性的铝化物涂层,对比研究了4种涂层的组织结构和在900 ℃下的涂盐 (25%NaCl(质量分数)+75%Na2SO4 (质量分数)) 热腐蚀行为。结果表明:在4种涂层中,Al-Ti涂层表面腐蚀产物连续致密,而且与基体结合紧密,表现出最优异的抗热腐蚀性能。
关键词 高温合金涂层热腐蚀    
Abstract:Four modified aluminide coatings were prepared on superalloy DZ38G, which include a two step co-cementation coating NiCr-CrAl and three one step co-cementation coatings Co-Al, Al-Si and Al-Ti. Then their microstructure and hot corrosion behavior in a salt melt of 25%NaCl (mass fraction)+75%Na2SO4 (mass fraction) at 900 ℃ were investigated. The results show that a continuously compact scale of corrosion products with good adhesion to the matrix could form on Ti-Al coating during corrosion, therefore, the Al-Ti coating may provide much better protectiveness to the alloy rather than the other three coatings in this kind of salt mixture.
Key wordssuperalloy    coating    hot corrosion
    
ZTFLH:  TG174.3  
基金资助:国家自然科学基金项目 (51371173) 资助
通讯作者: 通讯作者:韦华,E-mail:hwei@imr.ac.cn     E-mail: hwei@imr.ac.cn
作者简介: 吴多利,男,1987年生,硕士,研究方向为高温合金及其腐蚀防护

引用本文:

吴多利, 张洪宇, 韦华, 郑启, 金涛, 孙晓峰. 4种改性的铝化物涂层对DZ38G合金热腐蚀性能的影响[J]. 中国腐蚀与防护学报, 2014, 34(6): 502-506.
WU Duoli, ZHANG Hongyu, WEI Hua, ZHENG Qi, JIN Tao, SUN Xiaofeng. Hot Corrosion Behavior of Four Modified Aluminide Coatings on DZ38G Alloy. Journal of Chinese Society for Corrosion and protection, 2014, 34(6): 502-506.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2013.232      或      https://www.jcscp.org/CN/Y2014/V34/I6/502

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