Inhibiranje korozije aluminijske legure adsorpcijom cerijevih iona

Klasnić, Antonio (2019) Inhibiranje korozije aluminijske legure adsorpcijom cerijevih iona. = Corrosion inhibition of aluminum alloys by cerium ions adsorption. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Šimunović, Vinko.

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Abstract (Croatian)

U teorijskom dijelu rada opisane su legure aluminija korištene u zrakoplovstvu i korozijska postojanost aluminija. Opisani su pojavni oblici korozije na aluminiju te metode zaštite od korozije, pri čemu su detaljnije objašnjeni postupci korištenja inhibitora. Opisane su karakteristike cerija kao kemijskog elementa i sredstva za inhibiciju korozije te objašnjene regulative kojima se ograničava upotreba kromata. Opisana su korozijska elektrokemijska ispitivanja kojima se izvodio eksperimentalni dio rada. U eksperimentalnom dijelu su ispitane aluminijske legure oznake 2024-T3 tretirane otopinom natrijevog klorida te zasebno otopinom cerijevog klorida heptahidrata. Tretiranje uzoraka je provedeno uranjanjem uzoraka u navedene otopine. Ispitivanje je provedeno elektrokemijskim metodama nakon čega je provedeno ispitivanje površine stereomikroskopom. Nakon ispitivanja analizirani su rezultati.

Abstract

Aircraft aluminium alloys and aluminium corrosion resistance are described in theoretical part. Aluminium corrosion types and corrosion protection methods are presented. It is explained how to use inhibitors. Cerium characteristics, corrosion inhibitors and chromate restrictions are described. Finally, electrochemical measurements used in experimental part are presented. In experimental part one gruop of Aluminium alloys 2024-T3 are treated in natrium chloride solution and the another one in cerium chloride heptahydrate solution. Inhibition was conducted by immersion in solution. Testing was conducted with electrochemical methods. After electrochemical testing, surface stereo microscopic testing is carried out and results were analysed.

Item Type: Thesis (Master's thesis (Bologna))
Uncontrolled Keywords: aluminijska legura 2024-T3; inhibitori; cerij; zrakoplovstvo
Keywords (Croatian): aluminium alloy 2024-T3; inhibitors; cerium; aerospace engineering
Subjects: TECHNICAL SCIENCE > Aviation, rocket and space technology > aerospace technology and maintenance
Divisions: 1100 Department of Welded Structures > 1120 Chair of Materials Protection
Date Deposited: 21 Mar 2019 10:40
Last Modified: 05 Apr 2019 14:58
URI: http://repozitorij.fsb.hr/id/eprint/9262

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