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Scientific Technical Review
2016, vol. 66, br. 2, str. 10-17
jezik rada: engleski
vrsta rada: neklasifikovan
doi:10.5937/STR1602010R


Koroziono ponašanje AlMg6Mn legure zavarene tig postupkom
aMilitary Technical Institute (VTI), Belgrade
bUniversity of Defense, Military Academy, Belgrade

e-adresa: ljubica.radovic@vti.vs.rs

Sažetak

Ispitan je uticaj TIG postupka zavarivanja na koroziono ponašanje i mehaničke karakteristike AlMg6Mn legure. Ploča AlMg6Mn legure u polaznom, toplo valjanom stanju debljine 8 mm je zavarena TIG postupkom. Kao dodatni material je korišćena žica S-AlMg5. Za ispitivanje mikrostrukture, mehaničkih karakteristika i otpornosti na koroziju su korišćene metode optičke mikroskopije, skenirajuće elektronske mikroskopije, merenje tvrdoće, kao i NAMLT i ASSET test. Pokazano je da je AlMg6Mn legura u polaznom stanju ima veću osetljivost na interkristalnu koroziju od TIG zavarenih spojeva, dok su i polazno stanje i zavareni spojevi otporni na raslojavajuću koroziju.

Ključne reči

legure; legure Al-Mg-Mn; zavarivanje; TIG zavarivanje; zavareni spoj; korozija; interkristalna korozija; mahaničke karakteristike

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