20.500.12556/RUL-161422 Korozijsko obnašanje in lastnosti PVD prevlek na jeklenih zlitinah Corrosion Behaviour and Properties of PVD Coatings on Steel Alloys Neprevlečena jekla, ki ne vsebujejo veliko protikorozivnih elementov (npr. krom), so zelo dovzetna za korozijo. V teoretičnem delu je predstavljena teorija korozije, nato tipi korozije in sama kemijska reakcija oksidacije ter teorija PVD prevlek. V sklopu eksperimentalnega dela smo v prvem delu analizirali lastnosti posameznih prevlek, v drugem delu pa preizkusili učinkovitost različnih prevlek za zaščito jekel C45E in 42CrMo4 pred korozijo v slanih pogojih. Med testiranimi prevlekami so bile PVD prevleke, nanešene z različnimi tehnologijami in tudi s tradicionalnimi metodami, kot je elektrokemijsko nikljanje. Rezultati so pokazali, da so PVD prevleke pokazale izboljšano odpornost proti koroziji. Najboljše se je izkazala prevleka SMUX in tradicionalno elektrokemijsko nikljanje. Najmanj primerna prevleka je bila prevleka CrSiN, nanešena s postopkom ARC. Uncoated steels that do not contain many anti-corrosion elements (e.g. chromium) are very susceptible to corrosion. The theoretical part presents the theory of corrosion, types of corrosion and the chemical reaction of oxidation itself, as well as the theory of PVD coatings. As part of the experimental work, in the first part we analyzed the properties of individual coatings, and in the second part we tested the effectiveness of different coatings for protecting C45E and 42CrMo4 steels against corrosion in salty conditions. Among the coatings tested, PVD coatings were applied using a variety of technologies and as well traditional method such as electrochemical nickel plating was used. The results showed that the PVD coatings showed improved corrosion resistance. SMUX coating and traditional electrochemical nickel plating proved to be the best. The least suitable coating was the CrSiN coating deposited by the ARC process. PVD prevleke korozija NSS test v slani komori karakterizacija prevlek 42CrMo4 C45E PVD coatings corrosion NSS test in salt bath characterization of coatings 42CrMo4 C45E true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2024-09-11 08:31:13 2024-09-11 08:31:15 2024-12-13 11:37:28 0000-00-00 00:00:00 2024 0 0 XX, 65 str. 2024 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 669.14:620.193.4:62-761(043.2) 265644 218978563 36881.pdf 36881.pdf 1 2CFB196455AB2F647E409CCB6F038F69 0ff72c3011a592adc4841d14f4b72c235b8f5aee2d845526f4df74aedfbebac4 643b1e65-7007-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=190351 Fakulteta za strojništvo 0 0 0