Affiliation:
1. Faculty of Mechanical Engineering Le Quy Don Technical University 236, Hoang Quoc Viet Cau Giay Hanoi 10000 Viet Nam
2. Institute for Tropical Technology Vietnam Academy of Science and Technology (VAST) 18, Hoang Quoc Viet Cau Giay Hanoi 100000 Viet Nam
3. National Key Laboratory for Welding and Surface Treatment Technologies NARIME 4, Pham Van Dong Cau Giay Hanoi 10000 Viet Nam
Abstract
AbstractIn this investigation, Al‐Mg alloy coating samples were deposited by the electric arc spray technique on SS400 steel substrate at various spraying parameters, namely, the spray current (150, 200 and 300 A), the air pressure (4, 4.5 and 5.5 bar) and the stand‐off distance (100, 162.8 and 200 mm). The structure morphology, phase composition, porosity, microhardness, adhesion and wear resistance of the coating were studied. The obtained results showed that the coating at the spray current of 300 A, the air pressure of 5.5 bar and the stand‐off distance of 162.8 mm has the lowest porosity and highest microhardness. In addition, this coating also has better adhesion to the steel substrate and wear resistance than other coatings. Moreover, X–ray phase analysis showed that the following phases are created on the surface of the Al‐Mg coatings: Al, Al2MgO4 and Al3Mg2.
Reference20 articles.
1. Effects of magnesium contents in thermal sprayed Al‐Mg alloy coatings on the corrosion characteristics;Takani Y.;J. Japan Therm. Spray Soc.,2014
2. Effect of Mg concentration on interfacial strength and corrosion fatigue behavior of thermal-sprayed Al-Mg coating layers
3. Electrochemical characteristics in sea water of Al‐3%Mg arc spray coating layer for corrosion protection with sealing treatment;Park I.;J. Korean Inst. Commun. Inf. Sci.,2015
4. Electrochemical characteristics in seawater for cold thermal spray‐coated Al–Mg alloy layer, Acta Metall;Park I.;Sin. Engl. Lett.,2016
5. Synergistic Effect of Cavitation-Erosion and Corrosion of Al and Al–Mg Alloy Coatings by Arc Thermal Spraying in Sea Water