Microstructure, some mechanical properties and tribocorrosion wear behavior of boronized Al0.07Co1.26Cr1.80Fe1.42Mn1.35Ni1.10 high entropy alloy

Karakaş, Mustafa Serdar; Günen, Ali; Çarboğa, Cemal; Karaca, Yusuf; Demir, Mehmet; Altınay, Yasemin; Erdoğan, Azmi

doi:10.1016/j.jallcom.2021.161222

Cited by 46 publications

(10 citation statements)

References 48 publications

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“…Wear on such a sample surface results in minimal loss of volume. High surface hardness values usually go through the phases of high resistance to adhesion, oxidation, and fatigue [21]. As seen in this study, during the sliding test against the Al2O3 ball inside the 3.5% NaCl solution, due to the high tendency of the surfaces of the untreated samples to wear, COF values with substantial fluctuations were observed on the surface of this alloy.…”

Section: Tribocorrosion Propertiessupporting

confidence: 57%

TRIBOCORROSION PROPERTIES OF BORIDED AND Al2O3-COATED NiTi MATERIAL

Uzun

2022

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The purpose of this study was to investigate the tribological properties of NiTi shape-memory alloy that was borided and coated with Al2O3 using the electrophoretic deposition (EPD) method. For the study, the sample surface was borided for 1 and 4 h at 800°C with the method of pack boriding, and the surface of the sample that was borided was coated with Al2O3 using the EPD method. The tribocorrosion properties of the untreated samples, borided samples, and borided and (duplex) Al2O3-coated samples were investigated and characterized using XRD and SEM devices. Accordingly, following the boriding treatment on the NiTi material, Al2O3 coating was successfully carried out with the EPD method. In comparison to the untreated samples, the tribocorrosion resistance of the surface-treated samples under a load of 3 N in a 3.5% NaCl solution increased. Additionally, among all samples, those that were subjected to the duplex surface treatment had the best tribocorrosion properties.

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Section: Tribocorrosion Propertiessupporting

confidence: 57%

TRIBOCORROSION PROPERTIES OF BORIDED AND Al2O3-COATED NiTi MATERIAL

Uzun

2022

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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“…This was caused by the higher thickness and the dense layer inside the coating as well as the surface hardness. Karakas et al illustrate that the most important factor for high wear resistance is hardness, [ 45 ] according to Archard's law [ 46 ] (Equation ()).

W = K \left(\right. N / H \left.\right)

where W is the volume loss rate, N is the applied load, K is the wear coefficient, and H is the material hardness.…”

Section: Resultsmentioning

confidence: 99%

Improved Tribocorrosion Properties of Ti6Al4V Alloy by Anodic Plasma Electrolytic Oxidation

Zeng

Wang

et al. 2023

Adv Eng Mater

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Ti6Al4V alloy has good corrosion resistance due to the formation of the passive oxide films on the surface of Ti6Al4V alloy. However, Ti6Al4V alloy has poor tribocorrosion resistance in the seawater environment. Herein the present work, plasma electrolytic oxidation (PEO) with the electrolyte of glycerol and sodium borate is used to generate PEO coatings on the surface of Ti6Al4V alloy to improve its tribocorrosion properties. The microstructure and tribocorrosion properties of PEO coatings are investigated by using scanning electron microscopy, X‐ray diffraction, and tribometer, respectively. The growth kinetics and the tribocorrosion mechanisms of PEO coatings are discussed in detail. It is shown in the results that PEO coatings deposited on the surface of Ti6Al4V alloy are composed of rutile and anatase phases. The surface hardness and thickness of PEO coatings are enhanced with the increase of the voltage and time. The wear rate of Ti6Al4V alloy with PEO coatings is significantly reduced in artificial seawater.

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“…The B 4 C powder adhered to the surface of the sample, leaving B 4 C powder residue on the sample surface after the treatment at 973 and 1073 K. Accordingly, as the reaction time increased, the decomposition of the B 4 C powder increased to a point where its diffraction lines could no longer be identified. The MB-type borides formed when experimenting on the boronizing of the AlCoCrFeNi [27] and AlCoCrFeMnNiB HEA systems [28] were (Cr 0.4 Mn 0.6 )B (01-079-2851), (Fe 0.4 Mn 0.6 )B (01-079-2868), and (CrFe)B 2 (01-079-2850), while the M 2 B-type boride formed was Ni 2 (Co 0.67 B 0.33 ) (01-081-3360); consequently, we believe that similar complex borides are formed in this experiment. each sample, and a three-point average value (excluding both the maximum and minimum values) was reported as the hardness.…”

Section: Xrdmentioning

confidence: 99%

Boronizing of CoCrFeMnNi High-Entropy Alloys Using Spark Plasma Sintering

Nakajo

Nishimoto

2022

JMMP

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In this study, we investigated the formation of a protective coating on a face-centered cubic high-entropy alloy (HEA). The coating was formed by a diffusion coating method. In the conventional diffusion coating method, the degradation of the mechanical properties of the base material owing to prolonged high-temperature treatment is a major issue. Therefore, we formed a ceramic layer using spark plasma sintering (SPS), which suppresses grain growth with rapid heating and enables fast, low-temperature processing. The objective of this study was to form borides on the surface of CoCrFeMnNi HEAs using the SPS method and to investigate their properties. A CoCrFeMnNi HEA prepared by the casting method was used as the base material, and a powdered mixture of B4C and KBF4 was used as the boron source. The analysis of the surfaces of the SPS-treated samples revealed the formation of M2B, MB, and Mn3B4-type borides on the HEA surface. The surface hardness was 2000–2500 HV owing to the formation of a ceramic layer on the HEA surface, and elemental analysis showed that certain elements exhibited characteristic diffusion behaviors.

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Microstructure, some mechanical properties and tribocorrosion wear behavior of boronized Al0.07Co1.26Cr1.80Fe1.42Mn1.35Ni1.10 high entropy alloy

Cited by 46 publications

References 48 publications

TRIBOCORROSION PROPERTIES OF BORIDED AND Al2O3-COATED NiTi MATERIAL

TRIBOCORROSION PROPERTIES OF BORIDED AND Al2O3-COATED NiTi MATERIAL

Improved Tribocorrosion Properties of Ti6Al4V Alloy by Anodic Plasma Electrolytic Oxidation

Boronizing of CoCrFeMnNi High-Entropy Alloys Using Spark Plasma Sintering

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