Corrosion properties of Ti-Ni-Cu coatings fabricated by laser surface alloying

Qiao, Q.; Cristino, V.A.M.; Tam, Lap Mou; Kwok, Chi Tat

doi:10.1016/j.corsci.2023.111426

Cited by 3 publications

(1 citation statement)

References 85 publications

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“…There are many known methods for producing Ti-Cu coatings: pack cementation [14,15], self-propagating high-temperature synthesis [16], laser processing [17], electrolytic deposition [18], and electric spark alloying [19,20]. The most promising method is one that includes explosive welding followed by heat treatment via contact melting (CM) [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Influence of Nickel Content on the Formation of an Interaction Zone during Contact Melting of Titanium with Copper-Nickel Alloys

Shmorgun,

Slautin,

Kulevich

et al. 2024

Metals

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The diffusion processes during the contact melting at the boundary of explosively welded VT1-0 titanium with CuNi19 (melchior) and CuNi45 (constantan) alloy composites were studied. Heat treatment of composites led to the formation of the interaction zone at the joint boundary. The interaction zone in VT1-0 + CuNi19 consists of TiCuNi and αTi + Ti2Cu(Ni) continuous layers as well as a mixture of TiNi(Cu) + TiCu(Ni) + Ti2Cu(Ni) intermetallics. It has been shown that an increase in the nickel content in the case of VT1-0 + CuNi45 composite leads to a decrease in the temperature of contact melting, a change in its mechanism, an increase in the titanium content in the interaction zone, and the appearance of additional Ti2Ni(Cu) intermetallic in its composition.

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Section: Introductionmentioning

confidence: 99%

Influence of Nickel Content on the Formation of an Interaction Zone during Contact Melting of Titanium with Copper-Nickel Alloys

Shmorgun,

Slautin,

Kulevich

et al. 2024

Metals

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Characterization of laser surface-alloyed Ti-Ni-Ag coatings and evaluation of their corrosion and antibacterial performance

Qiao,

Cristino,

Tam

et al. 2023

Surface and Coatings Technology

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Hardfacing of multicomponent alloys containing refractory metals

Oleinik,

Bakhteev,

Russkih

et al. 2024

Rasplavy

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The paper considers the possibility of coating Al–Zr–V–Nb in the form of a powder with a fraction of 0.063 mm and a humidity of 0.33%, measured using the AND MX-50 device, on a substrate made of 08Cr18Ni10 steel. The deposition was carried out using a laser complex consisting of a laser radiation source LS-5 and a robot KUKA KR-60 ha in a protective argon atmosphere. Gas purging was carried out before the deposition process of 0.3 s and after 1 s. For reliable bonding of the coating powder (Al–Zr–V–Nb) with the surface of the base material (Steel 08Cr18Ni10), a mixture of powder with polyvinyl alcohol was applied to the steel before deposition. According to the data obtained on the Carl Zeiss EVO 40 scanning electron microscope, the optimal mode of deposition of Al–Zr–V–Nb powder on the base material corresponds to a power of 250 Watts at a processing speed of 0.5 m/s and a coating thickness of 0.6 mm. At a lower power of 230 W, the coating cannot melt qualitatively and, in this regard, insufficient penetration of the base metal by the coating metal (adhesion) occurs, resulting in partial detachment. If the power is increased to 270 W, then the base metal and the substrate interact with each other just as well and create a strong monolayer of the coating, as in the optimal mode, but when cooling, due to a significant difference in cooling speeds (the 08Cr18Ni10 steel plate does not have time to cool at the speed of the coating material), cracking occurs and the appearance of microcracks. Thus, there is a need to further increase the number of passes or an additional melting process to create a reliable coating with no discontinuities and islands. At the same time, measurements of Vickers microhardness (HV) during surfacing of the Al–Zr–V–Nb coating showed an increase in HV values by more than two times compared to the base material, which is a sufficient reason for using Al–Zr-V-Nb powder as a strengthening coating for 08Cr18Ni10 steel).

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Corrosion properties of Ti-Ni-Cu coatings fabricated by laser surface alloying

Cited by 3 publications

References 85 publications

Influence of Nickel Content on the Formation of an Interaction Zone during Contact Melting of Titanium with Copper-Nickel Alloys

Influence of Nickel Content on the Formation of an Interaction Zone during Contact Melting of Titanium with Copper-Nickel Alloys

Characterization of laser surface-alloyed Ti-Ni-Ag coatings and evaluation of their corrosion and antibacterial performance

Hardfacing of multicomponent alloys containing refractory metals

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