Magnesium containing coatings formed by a low-energy electron beam

Xiao, Jintao; Rogacheva, A.V.; Yarmolenko, V.A.; Rogacheva, A.A.; Jiang, Xiaohong; Sun, Dongping; Yarmolenko, М.А.

doi:10.1016/j.surfcoat.2018.05.045

Cited by 8 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Al alloys were usually employed as protection layers on the surface of Mg-alloy components, since Al exhibits a good metallurgy consistency with the Mg and greatly improves the strength and corrosion resistance of Mg alloys [ 12 , 13 , 14 ]. A variety of melting technologies have been developed to deposit alloy layers on components for cladding [ 15 ], dissimilar joints [ 16 ], and additive manufacturing [ 17 ], such as selective laser melting [ 18 , 19 , 20 ], cold-arc melting [ 21 , 22 ], electron-beam melting [ 23 , 24 , 25 ], and so on. These high-energy melting methods have become advanced technologies in the surface engineering and remanufacturing engineering of Mg alloy components, since rapid heating, melting, and cooling provide extreme non-equilibrium conditions that cannot be achieved by conventional methods, so that the parts formed gain excellent comprehensive properties [ 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Laser–Arc Hybrid Cladding of Al-Mg Alloy Coating on AZ80 Mg Alloy: Effect of Laser Beam Oscillations Amplitude

Ren¹,

Zhao²,

Han³

et al. 2022

Materials

View full text Add to dashboard Cite

The effect of beam oscillating amplitude on the microstructure and performance of AZ80 Mg alloy cladded with Al-Mg alloy coating by laser–arc hybrid welding was studied. The penetration depth decreases significantly while welds are widened because of the increase in the oscillating area of a laser beam. Alloy segregation and keyhole-induced porosity can be suppressed by the laser beam oscillation. With the increase in the oscillating amplitude, the Al distribution becomes uniform in the weld seam because of the rapid and fierce stirring by the oscillating laser. However, the diluting of the cladded Al alloy restrains the formation of the brittle Mg17Al12 phase, and then causes the weakening of hardness and wear resistance of the cladded layer. Considered comprehensively, the optimized oscillating amplitude was 1 mm, which can produce the weld seam with good appearance, fewer segregation and porosity defects, and acceptable hardness and wear resistance.

show abstract