Corrosion aspects of Ni–Cu alloy (UNS N04400) and its surface improvement: a review

Samvatsar, Kaustubh; Rao, Vandana J.

doi:10.1007/s42247-021-00289-0

Cited by 5 publications

(1 citation statement)

References 104 publications

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“…Ni-Cu composite material is an important alloy commonly used in industry and marine fields [18][19][20]. While satisfying its strength, it is also necessary to consider that the material should have a certain plasticity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Ni-Cu Heterostructures with SPS to Achieve a Balance of Strength and Plasticity

Lin

2022

Metals

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The balance between strength and plasticity has always been an urgent problem for researchers to solve. In this experiment, Ni-Cu heterostructures (HSs) were synthesized by spark plasma sintering (SPS), rolling deformation, and subsequent heat treatment. The density of the Ni/Cu interface of Ni-Cu HS materials can be independently tuned, and thus the effect of hetero-deformation-induced (HDI) strengthening in Ni-Cu heterostructures can be tuned. The density of the Ni/Cu interface is tuned by adding Cu with different volume fractions to obtain the best combination of strength and plasticity. Compared with the previous HSs, the hardness differences between different regions of Ni-Cu HSs are more significant, and they are all composed of single substances. The hard Ni domain and the soft Cu domain are not only different in phase composition but also different in grain size. More interestingly, the density of the hard/soft domains can be adjusted independently, which provides a new way to explore the strength and plasticity balance of HS materials. The yield strength of Ni-Cu HS materials first increases and then decreases gradually with the increase in the Cu volume fraction. When the Cu volume fraction is less than 30%, the HDI strengthening effect in the Ni-Cu HS material can offset the effect of the yield strength reduction caused by Cu; with a further increase in the Cu volume fraction, the HDI strengthening effect is less than the yield strength reduction effect brought on by Cu.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Ni-Cu Heterostructures with SPS to Achieve a Balance of Strength and Plasticity

Lin

2022

Metals

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Improved Corrosion Resistance of Ni‐Based Alloys by B‐Induced Passivation Behavior

Wang,

Qiu,

Luo

et al. 2024

Adv Eng Mater

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Nickel‐based alloys exhibit excellent mechanical properties, but the corrosion resistance when exposed to NaCl solution needs to be improved, thus limiting their widespread applications. In this study, it is demonstrated that a moderate addition of boron, specifically 3.5 wt%, can effectively enhance both the tribological properties and corrosion resistance of Ni‐based alloys. The microstructures evolution and corrosion mechanism of Ni–Cu–xB (0–5 wt%) alloys have been comprehensively investigated through the experimental characterization and phase diagram calculations. The improvements in corrosion resistance can be primarily attributed to the formation of continuous and dense passivation films. Additionally, the dissolved B fixes chloride ions to hinder the breakdown of passivation films. However, an excessive addition of boron can have a detrimental effect on corrosion resistance. While improving the formation of dense passivation films, the excessive presence of boron also prompts the precipitation of a Cu‐rich phase that is highly susceptible to corrosion by chloride ions, thereby exacerbating the corrosion process in the alloy.

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Silicon nitride nanoparticles reinforced the corrosion resistance of Ni-Cu composite coating in simulated seawater solution

Song

Zhang

et al. 2022

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Corrosion aspects of Ni–Cu alloy (UNS N04400) and its surface improvement: a review

Cited by 5 publications

References 104 publications

Synthesis of Ni-Cu Heterostructures with SPS to Achieve a Balance of Strength and Plasticity

Synthesis of Ni-Cu Heterostructures with SPS to Achieve a Balance of Strength and Plasticity

Improved Corrosion Resistance of Ni‐Based Alloys by B‐Induced Passivation Behavior

Silicon nitride nanoparticles reinforced the corrosion resistance of Ni-Cu composite coating in simulated seawater solution

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