Uncovering wear mechanism of a Fe2Ni2CrAl multi-principal elements alloy

Qiao, Lei; Ramanujan, R.V.; Zhu, Jingchuan

doi:10.1007/s10853-023-08193-0

Cited by 6 publications

(9 citation statements)

References 33 publications

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“…To quantitatively analyze the wear track, the variation of the wear volume loss was measured as

3.42 \times \left(10\right)^{7} \left(\text{μm}\right)^{3}

, and the width of the wear track was 1213.2 μm. According to the our work [ 40 ] on Fe2Ni2CrAl alloy, the mass loss of the Fe2Ni2CrAl alloy is

3.94 \times \left(10\right)^{7} \left(\text{μm}\right)^{3}

. The wear volume loss for the Fe2.5Ni2.5CrAl alloy is slightly less than that of the Fe2Ni2CrAl alloy, suggesting that the wear volume loss can be tuned by varying the content of Fe and Ni.…”

Section: Resultsmentioning

confidence: 99%

“…For comparison, the average friction coefficient of Fe2.5Ni2.5CrAl alloy was derived as

\approx 0.54

. [ 40 ] The lower friction coefficient of Fe2.5Ni2.5CrAl alloy implies its better tribological performance.…”

Section: Resultsmentioning

confidence: 99%

“…\text{Nm} \left.\right)\right)^{- 1}$ . Our work on Fe2Ni2CrAl alloy, [ 40 ] using the same method and parameter to measure its hardness and wear rate, shows that its hardness is 371.48 HV, and the wear rate denotes

8.72 \times \left(10\right)^{- 5} \left(\text{mm}\right)^{3} \left(\left(\right. \text{Nm} \left.\right)\right)^{- 1}

.…”

Section: Resultsmentioning

confidence: 99%

“…The wear volume loss (V ) is MPEAs and Fe2Ni2CrAl MPEAs. [40] Figure 3. Friction coefficient files of Fe2.5Ni2.5CrAl MPEAs and Fe2Ni2CrAl MPEAs.…”

Section: Friction and Wear Behaviormentioning

confidence: 99%

“…Our previous work [38,39] reported that Fe2.5Ni2.5CrAl MPEAs possess a typical dual-phase structure (FCC þ BCC/B2) and exhibit high strength and plasticity. The coherent interfaces between FCC and BCC, as well as the BCC and B2 phases, can hinder dislocation motion during the deformation process and improve the mechanical properties.…”

mentioning

confidence: 99%

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Wear of a Fe2.5Ni2.5CrAl Multiprincipal Element Alloy: A Combined Experimental and Molecular Dynamics Study

Qiao,

Ramanujan,

Zhu

2023

Adv Eng Mater

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The Fe2.5Ni2.5CrAl multi‐principal element alloy (MPEA) is a promising material for engineering application because of its high strength and plasticity values. To evaluate the friction and wear performance, reciprocating dry sliding tests and molecular dynamics (MD) simulations were performed to determine the wear mechanism over a range of length scales. This alloy exhibited a lower average friction coefficient and wear volume loss during dry sliding compared with the well‐known Fe2Ni2CrAl alloy. The worn surface morphology revealed abrasive scratches, grooves, and delamination. The fine wear debris possessed high oxygen content, leading to higher wear resistance. The wear mechanism involved abrasive, adhesive, and oxidative wear. The wear, atomic stress and shear strain, dislocations, and lattice structure were analyzed by MD simulations. Point defects, atomic clusters and stacking faults were identified in the nano‐wear process. The behavior of the 1/6<112>(Shockley) type dislocations was identified as the main dislocation mechanism during sliding. Stacking faults produced during the stress release process were present in the indentation. This work provides a deep insight into the friction and wear behavior of Fe2.5Ni2.5CrAl MPEAs.This article is protected by copyright. All rights reserved.

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“…To quantitatively analyze the wear track, the variation of the wear volume loss was measured as

3.42 \times \left(10\right)^{7} \left(\text{μm}\right)^{3}

, and the width of the wear track was 1213.2 μm. According to the our work [ 40 ] on Fe2Ni2CrAl alloy, the mass loss of the Fe2Ni2CrAl alloy is

3.94 \times \left(10\right)^{7} \left(\text{μm}\right)^{3}

. The wear volume loss for the Fe2.5Ni2.5CrAl alloy is slightly less than that of the Fe2Ni2CrAl alloy, suggesting that the wear volume loss can be tuned by varying the content of Fe and Ni.…”