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This is to certify that your paper entitled «Optimization of the Micro-Hardness as nano-structureCu-Cr alloysby the mechanical alloying process with using artificial neural networks and genetic algorithm» was indexed with 10 pages, in the CIVILICA citation database, code COI:IMES11_229, after evaluation and approval of the referees of the "The 6th International Conference on Exhibitiion on Metallurgy and Materials Engineering held in Tehran 2017.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.