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

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Shmorgun, V.G.^1 ; Slautin, O.V.^1 ; Pronichev, D.V.^1 ; Kulevich, V.P.^1

Volgograd State Technical University, Lenina Av. 20, Volgograd

400005, Russia^1

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

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/9/092025/pdf
DOI  :  10.1088/1755-1315/87/9/092025

来源: IOP

【 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.