Detection of Trace Impurity Elements In High-Entropy Alloys by Total Reflection X-Ray Fluorescence Method and Sample Preparation Methods DOI

Xingyu Wang,

Daqian Hei, Ge Zhou

и другие.

Опубликована: Янв. 1, 2024

High-entropy alloys (HEAs) have been widely used and concerned in recent years due to their excellent material properties. The impurity elements can exert a certain impact on the alloy properties even at lower content. In this study, total reflection X-ray fluorescence (TXRF) was combined with suspension sample preparation methods measure trace three common high-entropy powders. high-Z (Ca, Mn) low-Z (Mg, Al) were quantitatively determined by internal standard method calibration curve method, respectively. Then, compared detection results of inductively coupled plasma-optical emission spectrometer (ICP-OES), showed good consistency. Although there some deviation influence physical mechanisms elements, qualitative analysis quantitative estimation could still be conducted. It is proved that TXRF an effective analytical tool for alloys. Moreover, through methods, process non-destructive, fast, low-cost, less demands. Therefore, suitable rapid element production

Язык: Английский

A Modern Approach to HEAs: From Structure to Properties and Potential Applications DOI Creative Commons
Radu Nartiţă, Daniela Ioniţă, Ioana Demetrescu

и другие.

Crystals, Год журнала: 2024, Номер 14(5), С. 451 - 451

Опубликована: Май 9, 2024

High-entropy alloys (HEAs) are advanced materials characterized by their unique and complex compositions. Characterized a mixture of five or more elements in roughly equal atomic ratios, these diverge from traditional alloy formulations that typically focus on one two principal elements. This innovation has paved the way for subsequent studies have expanded our understanding HEAs, highlighting role high mixing entropy stabilizing fewer phases than expected phase prediction methods like Gibbs’s rule. In this review article, we trace evolution discussing synthesis, stability, influence crystallographic structures properties. Additionally, highlight strength–ductility trade-off HEAs explore strategies to overcome challenge. Moreover, examine diverse applications extreme conditions promise future advancements science.

Язык: Английский

Процитировано

12

Structural Particularities, Prediction, and Synthesis Methods in High-Entropy Alloys DOI Creative Commons
Ștefania Caramarin, Ioana-Cristina Badea, Laurentiu-Florin Mosinoiu

и другие.

Applied Sciences, Год журнала: 2024, Номер 14(17), С. 7576 - 7576

Опубликована: Авг. 27, 2024

High-Entropy Alloys (HEAs) represent a transformative class of materials characterized by multiple principal elements and high configurational entropy. This review article provides an in-depth examination their structural particularities, prediction methodologies, synthesis techniques. HEAs exhibit unique stability due to high-entropy effects, severe lattice distortions, slow diffusion processes. Predictive models, including thermodynamic kinetic approaches, are essential for understanding phase stability. Various methods impact HEA properties, advanced characterization techniques crucial study. The highlights current applications future research directions, emphasizing the potential in diverse technological fields.

Язык: Английский

Процитировано

9

Enhancement of high-entropy alloy coatings with multi-scale TiC ceramic particles via high-speed laser cladding: Microstructure, wear and corrosion DOI
Jiali Zhou, Yanhai Cheng, Bing He

и другие.

Applied Surface Science, Год журнала: 2024, Номер unknown, С. 162061 - 162061

Опубликована: Дек. 1, 2024

Язык: Английский

Процитировано

6

Microstructure and properties of FeCoNiCr and FeCoNiCrW high entropy alloy coatings by electro-deposition DOI

Meiling Dong,

Pengwei Liu, Chaohui Wang

и другие.

Intermetallics, Год журнала: 2024, Номер 175, С. 108492 - 108492

Опубликована: Сен. 16, 2024

Язык: Английский

Процитировано

5

Insights into Corrosion Behavior of Alcrfeti and Alcrfetimo Coating in Oxygen-Controlled Lead Bismuth Eutectic at 500 °C, 550 °C and 600 °C DOI
Jingyi Liang, Wei Zhang, Jingyi Liang

и другие.

Опубликована: Янв. 1, 2025

Corrosion behaviors of AlCrFeTi and AlCrFeTiMo multi-principal elements coatings in 0.5 ~ 1 × 10-6 wt. % oxygen containing liquid lead bismuth eutectic (LBE) was investigated, static LBE immersion tests were conducted at 500 °C, 550 °C 600 up to 2000 h. Both had experienced phase transformation from amorphous BCC. Bi-layered oxide scales formed on coating which consist outer Fe/Cr mixed oxides inner Al/Ti oxides, the interior layer strengthened with temperature raising features confirmed. The addition Mo improved system stability elevated but degraded corrosion resistance coating. Underlying mechanism discussed.

Язык: Английский

Процитировано

0

Corrosion Resistance and Wear Properties of CoCrFeNiMn/TiC High-Entropy Alloy-Based Composite Coatings Prepared by Laser Cladding DOI Creative Commons

Qiang Zhan,

Fangyan Luo,

Jiang Huang

и другие.

Lubricants, Год журнала: 2025, Номер 13(5), С. 210 - 210

Опубликована: Май 10, 2025

CoCrFeNiMn high-entropy alloy (HEA) composite coatings with 0, 10, and 20 wt% TiC are synthesized through laser cladding technology, their corrosion wear resistance systematically investigated. The X-ray diffraction (XRD) results show that the addition of TiC, phases M23C6 introduced, lattice distortion occurs simultaneously (accompanied by broadening leftward shift main Face-Centered Cubic (FCC) peak). Scanning electron microscopy (SEM) reveals incompletely melted particles in coating (S2) uniformly distributed matrix while (S1) 10 due to gravitational sedimentation decomposition during processing, distribution reinforcing phase is insufficient. When rubbed against Si3N4, S2 exhibits lowest friction coefficient 0.699 volume 0.0398 mm3. more prominent simulated seawater (3.5 NaCl). shows best resistance: it has largest self-corrosion voltage (−0.425 V vs. SCE), current density (1.119 × 10−7 A/cm2), stable passivation behavior a wide region. Electrochemical impedance spectroscopy (EIS) confirms its film denser. This study optimizes microstructural homogeneity synergistically enhances mechanical strengthening electrochemical stability coating, providing new strategy for making HEA-based layers harsh wear-corrosion coupling environments.

Язык: Английский

Процитировано

0

Ultrafast high-temperature joining of Ti3SiC2 using FeCoCrNiCu high-entropy alloy via thermal shock DOI
Long Zhou, Chun Li, Yuxiang Chen

и другие.

Journal of Manufacturing Processes, Год журнала: 2024, Номер 121, С. 260 - 268

Опубликована: Май 22, 2024

Язык: Английский

Процитировано

3

Laser powder bed fusion additive manufacturing of Ti-coated diamond/(CoCrNi)82Al9Ti9 composites: Process optimization, microstructure features and wear resistance DOI

Yaoyao Yang,

Chenglong Ma,

Quanlong Wang

и другие.

International Journal of Refractory Metals and Hard Materials, Год журнала: 2025, Номер unknown, С. 107047 - 107047

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

An investigation on corrosion resistance of laser-cladded FeCoNiCrCu high-entropy alloy coatings based on different initial powder particle sizes DOI
Ying Wang,

Yuhua Peng,

Chao He

и другие.

Опубликована: Янв. 1, 2025

The corrosion mechanism of FeCoNiCrCu high entropy alloy (HEA) coatings produced with different initial powder particle sizes in 3.5% NaCl is systematically investigated. optimal process parameters for laser cladding were obtained through orthogonal tests, resulting excellent quality. As the size increases, less energy absorbed by particles, more difficult it to form fewer defects. current density increases while potential decreases. lower charge transfer resistance represents worse resistance. Corrosion predominantly occurs at defects on surface coating. Coatings finer have and therefore better Compositional analysis passivating film coating reveals that as decreases, total content Cu oxide decreases Cr stability continuity passivation film, which contributes improvement coating's Reducing thus significantly improving HEA coatings.

Язык: Английский

Процитировано

0

Stabilized interfacial structure induced by self-dissolved active atoms in the (HfZrTiTaNb)C high-entropy carbide brazed joint using CoCrFeNi alloy DOI

Ruijie Mu,

Ying Wang, Shiyu Niu

и другие.

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0