The specific objectives of the SUSCROM project are the following:<\/strong><\/p>\n<\/div>- <\/i><\/span>
\n
To obtain coatings with tribological and mechanical properties comparable to those of hard chrome or even with superior corrosion resistance as well as superior specifications than those required by EGILE and by costumers of the aeronautics industry from ELHCO, CHEMPLATE and SURTECH. To this purpose, three partial goals were proposed:<\/p>\n
\n- 1.1. To develop chrome coatings from Cr(III) electrolytes: i) without complexing agents<\/strong> (validated at lab scale by INEOSURF) and ii) with complexing agents (commercial, ATOTECH), defining the optimal experimental conditions to achieve coatings with the defined requirements.<\/li>\n
- 1.2. To study the effect of the application of different thermal treatments on mono- and multi-layer Ni-P plating<\/strong> (with different %P), obtained from an electrolyte that was validated in the recently finished TRUE-REPLACE project, in a way that the corrosion resistance of these layers is improved, while keeping their mechanical and tribological properties within the required standards for an aeronautical application.<\/li>\n
- 1.3. To investigate the combination of Cr and Ni-P coatings<\/strong>, studying different architectures (number of layers and thickness in multi-layer plating, P content, thermal treatment, etc), looking for an increase of corrosion resistance of the coatings and reach the defined mechanical, tribological and protecting requirements.<\/li>\n<\/ul>\n<\/div><\/li>
- <\/i><\/span>
To achieve a new,
more ecological<\/strong> and efficient <\/strong>industrial process, able to provide excellent functional qualities to pieces and metal components with applications in strategic industrial sectors such as aeronautics. Also, we intend to get ahead of the REACH regulations (annex XIV) that defines Cr(VI) as a highly contaminant substance with a use deadline by September 2024, as well as to get ahead of other European rules that control its use. Finally, we intend to eliminate the toxic emanations generated by handling chromic acid (Cr(VI)) during all phases of the manufacturing process, removing the risk for the workers\u2019 health in their workplace.<\/div><\/li>- <\/i><\/span>
\n
To know the features and limitations of Cr (III) and Ni-P electrolytes<\/strong>, defining the work window and the concentration limits of the most suitable components that lead to coatings with an adequate quality, without causing problems neither in the stability nor in the yield of the electrolytes. Besides, we seek to define electrolyte analysis methods and to establish both control and maintenance protocols, so that the electrolyte evolution could be studied over time and applied charge. Likewise, it is projected the possibility of analyzing the regeneration of the Cr(III) electrolytes as undesired substances are generated in the bath during use.<\/p>\n<\/div><\/li>- <\/i><\/span>
To develop
monitoring, control and regeneration systems<\/strong> for Cr(III) and Ni-P electrolytes, so they could be controlled and kept in optimal conditions for long process times, increasing their useful life, while keeping their performance and decreasing the percentage of coating rejections.<\/div><\/li>- <\/i><\/span>
To
escalate both chrome and nickel plating<\/strong> to pilot plant scale over prototypes of different materials, sizes and geometries, with continuous and remote monitoring and controlling of the electrolytes. Validation of the coatings under standards and through a test bench, which will be designed and fabricated for the evaluation of the prototypes in a relevant environment (TRL 6).<\/div><\/li>- <\/i><\/span>
To divulge<\/strong> in journals the results<\/strong> of the project that would be of scientific interest<\/div><\/li><\/ul><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"Definitive replacement of hexavalent hard chrome in the aeronautical sector
\nActual state<\/strong>: Finalized<\/p>\n","protected":false},"author":1,"featured_media":6987,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"portfolio_category":[65],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-7620","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-projects"],"yoast_head":"\nDefinitive replacement of hexavalent hard chrome in the aeronautical sector<\/title>\n<meta name=\"description\" content=\"Definitive replacement of hexavalent hard chrome in the aeronautical sector\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/elhco.com\/en\/proyectos\/project-suscrom\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Definitive replacement of hexavalent hard chrome in the aeronautical sector\" \/>\n<meta property=\"og:description\" content=\"Definitive replacement of hexavalent hard chrome in the aeronautical sector\" \/>\n<meta property=\"og:url\" content=\"https:\/\/elhco.com\/en\/proyectos\/project-suscrom\/\" \/>\n<meta property=\"og:site_name\" content=\"Elhco - 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