Enhanced high-temperature wear resistance of GCr15 steel balls by generating a Ti + Nb diffusion layer via mechanical alloying and NH3·H2O treatment

Xie, X. C.; Guo, Zhongning; Liang, Zhongwei; Xiao, Jinrui; Zhao, Zhuan

doi:10.1016/j.surfcoat.2023.129632

Cited by 6 publications

(1 citation statement)

References 41 publications

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“…Niobium (Nb) is an element that is easily linked to C and/or O, forming very hard compounds. These compounds significantly enhance the mechanical and abrasive resistance of the material, especially at high working temperatures [9][10][11]. Therefore, Nb-rich compounds can be added to metal coating under harsh working conditions.…”

Section: Introductionmentioning

confidence: 99%

Impact of incorporating FeNbC into weld flux on the abrasive wear resistance of coatings produced by SAW in a microalloyed steel

Pollnow,

Cardoso,

das Neves

et al. 2024

Surf. Topogr.: Metrol. Prop.

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Owing to the global shortage of raw materials and an increase in their prices, there is a growing demand for engineering solutions to increase the lifespan and durability of equipment and components. Therefore, this study aims to combine surface engineering and welding engineering to produce a niobium-rich coating using submerged arc welding (SAW) deposition. SAW is a cost-effective technique that allows high deposition rates and technical simplicity, which can enhance mechanical properties and resistance to abrasive wear of components. This research involves the addition of a FeNbC powder alloy in percentages of 5, 10, and 15 wt.% to a neutral commercial SAW flux, as an alternative to adding Nb to the microstructure of the deposited coating. The coating was characterized by optical microscopy to analyze the microstructure, such as the presence of phases; microhardness through a Vickers micro-durometer, and resistance to abrasive wear through the loss of mass using a rubber wheel-type abrasometer. The wear mechanisms were evaluated using scanning electron microscopy. The results showed that a Nb-rich coating can be deposited via SAW, and the coatings successfully increased microhardness by up to 110% and resistance to abrasive wear to values higher than the base metal used (microalloyed steel). The microstructure formed was rich in Fe2Nb and NbC, proving the formation of Nb-rich phases. Additionally, the mechanism of abrasive wear was predominantly plastic for the base metal and changed to micro-cutting and micro-plowing after the addition of up to 15% of FeNbC.

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Section: Introductionmentioning

confidence: 99%

Impact of incorporating FeNbC into weld flux on the abrasive wear resistance of coatings produced by SAW in a microalloyed steel

Pollnow,

Cardoso,

das Neves

et al. 2024

Surf. Topogr.: Metrol. Prop.

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Fretting-corrosion mechanisms of Ti6Al4V against CoCrMo in simulated body fluid under various fretting states

Pu,

Zhang,

Zhang

et al. 2024

Friction

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Ti6Al4V alloy–CoCrMo alloy pair is commonly applied for modular head–neck interfaces for artificial hip joint. Unfortunately, the fretting corrosion damage at this interface seriously restricts its lifespan. This work studied the fretting corrosion of Ti6Al4V–CoCrMo pair in calf serum solution. We established this material pair’s running condition fretting map (RCFM) regarding load and displacement, and revealed the damage mechanism of this material pair in various fretting regimes, namely partial slip regime (PSR), mixed fretting regime (MFR), and gross slip regime (GSR). The damage mechanism of Ti6Al4V alloy was mainly abrasive wear induced by CoCrMo alloy and tribocorrosion. Adhesive wear (material transfer) also existed in MFR. The damage mechanism of CoCrMo alloy was mainly abrasive wear induced by metal oxides and tribocorrosion in GSR and MFR, while no apparent damage in PSR. Furthermore, a dense composite material layer with high hardness was formed in the middle contacting area in GSR, which reduced the corrosion and wear of Ti alloys and exacerbated damage to Co alloys. Finally, the ion concentration maps for Ti and Co ions were constructed, which displayed the transition in the amount of released Ti and Co ions under different displacements and loads.

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Improved wear resistance of 440C steel ball via ultrasonic strengthening grinding process

Xiao,

Zhang,

Zhao

et al. 2023

Journal of Materials Processing Technology

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Enhanced high-temperature wear resistance of GCr15 steel balls by generating a Ti + Nb diffusion layer via mechanical alloying and NH3·H2O treatment

Cited by 6 publications

References 41 publications

Impact of incorporating FeNbC into weld flux on the abrasive wear resistance of coatings produced by SAW in a microalloyed steel

Impact of incorporating FeNbC into weld flux on the abrasive wear resistance of coatings produced by SAW in a microalloyed steel

Fretting-corrosion mechanisms of Ti6Al4V against CoCrMo in simulated body fluid under various fretting states

Improved wear resistance of 440C steel ball via ultrasonic strengthening grinding process

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