Microstructure of laser-clad Ni60 cladding layers added with different amounts of rare-earth oxides on 6063 Al alloys

Microstructure and Corrosion Behavior of Laser-Cladding CeO2-Doped Ni-Based Composite Coatings on TC4

“…As it can be seen from Figure 3(a), the dendritic structures of the Ni25 cladding layers are coarse, and many grain segregations, accompanied by a large number of pores, can be observed in the local area, whereas the Ni25-cladding layers added with rare earth oxides exhibit compact dendritic structures, and the grains are refined. is finding agrees with the existing related studies [23,24]. is phenomenon can be attributed to the improved liquidity of the molten pool as a result of the addition of rare earth oxides, which is beneficial for gas discharge from the molten pool.…”

Graphene‐Assisted Preparation of In Situ TiC–TiB2/Al Composite Inoculant for Al–Si Alloy

“…[1][2][3][4] In the past decades, inoculation treatment has been widely used in industrial production for the significant economic benefits due to the trace amounts required. [8][9][10] Although Al-Ti-B master alloys have been the most proverbially used inoculants in the Al industrial production, there are some problems such as poor purity and being poisonous to Si, Zr, and so on. Also, it is crucial to control the added content of the particles because a proper addition can lead to good results, but an excessive addition will lead to agglomeration of particles, poor wettability, and other adverse effects.…”

“…It has been confirmed that some common ceramic particles such as CeB 6 , Al 2 O 3 , and TiN can be used as inoculants for aluminum alloys, based on the theory of heterogeneous nucleation. Also, it is crucial to control the added content of the particles because a proper addition can lead to good results, but an excessive addition will lead to agglomeration of particles, poor wettability, and other adverse effects . Although Al–Ti–B master alloys have been the most proverbially used inoculants in the Al industrial production, there are some problems such as poor purity and being poisonous to Si, Zr, and so on .…”

Soldagem De Revestimento a Laser Em Tubo De Aisi 4130 Empregando Pó De Inconel 625

“…Em contrapartida, nos estudos realizados com o uso de microscopia eletrônica de varredura (MEV) e de transmissão (MET) não foram encontradas mudanças microestruturais significativas em amostras submetidas a TT pós soldagem a temperatura de 650 °C por 4h [17]. Também foi reportado que quanto maior a espessura da camada de revestimento menor o efeito da diluição [18].…”