Tribo-corrosion response of additively manufactured high-entropy alloy

Shittu, Jibril; Sadeghilaridjani, Maryam; Pole, Mayur; Muskeri, Saideep; Ren, Jie; Liu, Yanfang; Tahoun, Ismael; Arora, Harpreet Singh; Chen, Wen; Dahotre, Narendra B.; Mukherjee, Sundeep

doi:10.1038/s41529-021-00177-2

Cited by 16 publications

(8 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sliding direction was 45° from OY  , which was known from Ref. [21] to be optimal. The electrochemical cell consists of the Fe60 sample as working electrode (WE), platinum wire as counter electrode (CE), and saturated calomel as reference electrode (RE).…”

Section: Tribo-corrosion Testing Methodsmentioning

confidence: 99%

“…In addition, the 45° surface possesses more positive OCP values when the friction becomes more stable. The difference in OCP values for different specimens can be partly explained in terms of the competition between surface damage and re-passivation [19,21]. Namely, the higher mechanical wear resistance, the more positive OCP values.…”

Section: Effects Of Anisotropy On Tribo-corrosion Performancementioning

confidence: 99%

“…Shittu et al [21] studied the effect of sliding direction on the tribo-corrosion response of additively manufactured high-entropy alloy, selecting a constant cross-section as the working surface. They found that the wear volume loss and wear rate vary with sliding directions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The roles of microstructural anisotropy in tribo-corrosion performance of one certain laser cladding Fe-based alloy

Sun

Xue-hong²,

Zhang

et al. 2023

Friction

View full text Add to dashboard Cite

Because of the microstructural anisotropy for laser cladding materials, the tribo-corrosion performance can vary significantly with different directions. In this study, one certain Fe-based coating was fabricated by laser cladding. To study the effects of anisotropy, three working surfaces (0°, 45°, and 90° to the building direction) were machined from the laser cladding samples; as-cast samples with an approximately homogeneous structure were prepared as controls. The tribo-corrosion tests were conducted in a 3.5 wt% NaCl solution with varying normal loads (5, 10, and 15 N). The results demonstrated that the 45° surface has superior friction stability, corrosion resistance, and wear resistance. This was directly related to the crystal orientation and grain boundary density. In addition, a refined microstructure may enhance tribo-corrosion properties by increasing deformation resistance and decreasing surface activity.

show abstract

Section: Tribo-corrosion Testing Methodsmentioning

confidence: 99%

Section: Effects Of Anisotropy On Tribo-corrosion Performancementioning

confidence: 99%

See 1 more Smart Citation

The roles of microstructural anisotropy in tribo-corrosion performance of one certain laser cladding Fe-based alloy

Sun

Xue-hong²,

Zhang

et al. 2023

Friction

View full text Add to dashboard Cite

show abstract

“…The large compositional design space of HEAs offers a unique flexibility to tailor their mechanical and functional properties for different applications. The core effects of high configurational entropy, lattice distortion, cocktail effect, and sluggish diffusion lead to a gamut of attractive mechanical, corrosion, and oxidation properties [328][329][330][331][332][333][334][335][336][337][338][339]. Therefore, they have been attracted as potential materials for advanced applications including aerospace, nuclear, cryogenics, and medical [340][341][342].…”

Section: High Entropy Alloys (Heas)mentioning

confidence: 99%

Review of Powder Bed Fusion Additive Manufacturing for Metals

Ladani

Sadeghilaridjani

2021

Metals

Self Cite

View full text Add to dashboard Cite

Additive manufacturing (AM) as a disruptive technology has received much attention in recent years. In practice, however, much effort is focused on the AM of polymers. It is comparatively more expensive and more challenging to additively manufacture metallic parts due to their high temperature, the cost of producing powders, and capital outlays for metal additive manufacturing equipment. The main technology currently used by numerous companies in the aerospace and biomedical sectors to fabricate metallic parts is powder bed technology, in which either electron or laser beams are used to melt and fuse the powder particles line by line to make a three-dimensional part. Since this technology is new and also sought by manufacturers, many scientific questions have arisen that need to be answered. This manuscript gives an introduction to the technology and common materials and applications. Furthermore, the microstructure and quality of parts made using powder bed technology for several materials that are commonly fabricated using this technology are reviewed and the effects of several process parameters investigated in the literature are examined. New advances in fabricating highly conductive metals such as copper and aluminum are discussed and potential for future improvements is explored.

show abstract

“…Understanding the oxidation mechanisms of solid materials and analyzing the resultant distribution of oxygen isotopes at nanoscale spatial resolution is pivotal to understanding of a wide variety of processes, including material degradation, [1][2][3][4][5] corrosion of engineered materials, [6][7][8] microorganism corrosion, [9] oxidation of anodes in solid oxide fuel cells, [10] and catalysis. [11,12] In geological sciences mapping 18 O in solid minerals tracer and an environmental reactor chamber attached to the APT system.…”

Section: Introductionmentioning

confidence: 99%

Visualizing the Nanoscale Oxygen and Cation Transport Mechanisms during the Early Stages of Oxidation of Fe–Cr–Ni Alloy Using In Situ Atom Probe Tomography

Devaraj

Barton

et al. 2022

Adv Materials Inter

View full text Add to dashboard Cite

In forensics, 18 O mapping in materials can be instrumental for tracing geographical origins of animals and humans. [17] Among the different methods used to study the oxidation mechanisms in solid materials, in situ environmental transmission electron microscopy (TEM) and in situ scanning tunneling microscopy are powerful for studying the atomic-scale structural changes associated with the early stages of oxidation. [1,3,5,18,19] However, these in situ techniques lack the sensitivity to distinguish individual oxygen isotopes. At the same time, nanosecondary ion mass spectrometry (SIMS) and other massspectrometry-based techniques, which are highly sensitive for oxygen isotopes, lack 3D sub-nanometer-scale spatial resolutions. [14,17,20,21] Recently, ex situ atom probe tomography (APT) studies validated the ability of APT to achieve sub-nanometerscale spatially resolved mapping of 18 O isotope distribution in materials. [10,[22][23][24][25] However, expanding this ability of APT in mapping 18 O quantitatively at sub-nanometer scale spatial resolution toward in situ oxidation studies is yet to be demonstrated.Here, we demonstrate for the first time in situ APT analysis of oxygen diffusion in a model Fe-18 wt% Cr-14 wt% Ni model alloy (from here on called as Fe18Cr14Ni) using an 18 O isotopic Understanding the early stages of interactions between oxygen and material surfaces-especially at very high spatial resolutions-is highly beneficial for fields ranging from materials degradation, corrosion, geological sciences, forensics, and catalysis. The ability of in situ atom probe tomography (APT) is demonstrated to track the diffusion of oxygen and metal ions at nanoscale spatial resolution during the early stages of oxidation of a model Fe-Cr-Ni alloy. Using 18 O isotope tracers in these in situ APT experiments and complementary ex situ multimodal microscopy, spectroscopy, and computational simulations allows to precisely analyze the kinetics of oxidation and determine that outward cation diffusion to oxide/air interface is the primary mechanism for intragranular oxide growth in this alloy at 300 °C. This unique in situ isotopic tracer APT approach and the insights gained can be highly beneficial for studying early stages of gas-surface reactions in a broad array of materials.

show abstract

Tribo-corrosion response of additively manufactured high-entropy alloy

Cited by 16 publications

References 42 publications

The roles of microstructural anisotropy in tribo-corrosion performance of one certain laser cladding Fe-based alloy

The roles of microstructural anisotropy in tribo-corrosion performance of one certain laser cladding Fe-based alloy

Review of Powder Bed Fusion Additive Manufacturing for Metals

Visualizing the Nanoscale Oxygen and Cation Transport Mechanisms during the Early Stages of Oxidation of Fe–Cr–Ni Alloy Using In Situ Atom Probe Tomography

Contact Info

Product

Resources

About