摘要
利用等离子喷涂方法制备了不同成分设计的多种Fe3Al-Al2O3陶瓷复合涂层,采用金相显微镜、SEM、XRD及电子探针等手段,研究了涂层的微观组织及成分分布,并对涂层的结合强度、显微硬度及抗热震性能进行了试验研究。结果表明,Fe3Al过渡层的引入可有效地改善涂层的质量,Fe3Al金属间化合物是钢基体上制备陶瓷涂层较为理想的过渡材料。涂层成分的梯度化有利于涂层结合强度和抗热震性能的提高。
Fe 3Al Al 2O 3 coatings with different types of composition were fabricated by plasma spraying The microstructure and the distribution of composition were analyzed by means of XRD, SED and EPMA, the adhesion strength, micro hardness and thermal shook resistance were tested The results show that the Fe 3Al transition layer can benefit to the properties of coatings Fe 3Al intermetallic is a kind of excellent transient materials when spraying ceramics coatings on carbon steel substrate The gradual distribution of composition improves the adhesion strength and thermal shook resistance
出处
《材料工程》
EI
CAS
CSCD
北大核心
2003年第4期6-9,共4页
Journal of Materials Engineering
基金
国家 8 63计划 (2 0 0 2 AA3 3 2 10 0 )
国家自然科学基金资助项目 (5 0 2 42 0 0 8)
