Editors: | Kongoli F |
Publisher: | Flogen Star OUTREACH |
Publication Year: | 2014 |
Pages: | 578 pages |
ISBN: | 978-1-987820-07-2 |
ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
The development of modern science and technologies increases the demand on the materials used. The use of different aircraft engine components and materials structures in aggressive environments or elevated temperature necessitate improvement of existing and development of new materials. They should be characterized by ease of production, high performance and physicochemical properties. An important role in this field also concerns appropriately selected protective coatings and modification of surface layer that significantly affect the range of applicability. They are designed mainly to improve wear and corrosion resistance in elevated temperature of operation. The tendency in the development of surface layer engineering are multilayers, based on modification of base materials with different elements. The development of a new type of surface layer modification will not only increase the efficiency of conventionally used elements but also to introduce new procedural methodology for aviation industry. More and more attention in the field is paid to CVD techniques. The presented paper focuses on combination of conventional and plasma assisted chemical vapor deposition for obtaining Al-N modified surface layer of blades. As a base material in the research, the 1H13 steel was used, that is conventionally used for production of aircraft engine compressors blades and is an excellent example for modification of elements performance parameters. Different aluminizing parameters (temperature, time) were used to investigate the diffusion characteristic and its impact on the nitriding effect. As a result, different gradient layers of Al-N-Fe type were obtained that meet different properties and performance characteristic.