Study of high-temperature heating effect on transformation of structure and phase composition of coatings of Al-Fe system

[摘要] It is shown that the phase transformations in the coating of the Fe-Al system produced by explosion welding of an aluminum AD1 with steel St3 and double occur in the following sequence: Fe2Al5→ FeAl2→ FeAl → Fe3Al → Fe (Al). They are accompanied by an increase in its thickness. The layered FeAl / Fe3Al / Fe (Al) coating on the inter-phase FeAl / Fe3Al boundary formed on a steel basis is porous, and inclusions of sulphides of manganese are present in alumina Fe3Al. The layered FeAl / Fe3Al / Fe (Al) coating on the steel base has a porous structure at the FeAl / Fe3Al interface, and inclusions of manganese sulfides in the Fe3Al aluminide region.

[发布机构] Volgograd State Technical University, Lenina Av. 20, Volgograd; 400005, Russia^1

[效力级别] 电工学

[关键词] Al-Fe system;Aluminides;Heating effect;Manganese sulfide;Porous structures;Steel base