Microstructural, Hyperfine, and Magnetic Properties of FeSiBCuNb Deposits

Alleg, S.; Hamza, L.; Ibrir, Miloud; Souilah, S.; Tebib, W.; Fenineche, N.; Grenèche, Jean‐Marc

doi:10.1007/s10948-015-3038-1

Cited by 4 publications

(1 citation statement)

References 21 publications

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“…It provides information regarding whether particles are multiple magnetic domains (Mr/Ms < 0.1), pseudo-single domains (0.1 < Mr/Ms < 0.5), or single magnetic domains (SMD) (Mr/Ms > 0.5). According to the Mr/Ms ratio values, which are about 0.165 and 0.172 for C1 and C2, respectively, the mechanically alloyed HEAs are pseudo-single domains [46].…”

Section: Magnetic and Mechanical Propertiesmentioning

confidence: 99%

Effect of Aluminum Addition on the Microstructure, Magnetic, and Mechanical Properties of FeCrCoNiMn High-Entropy Alloy

Alleg,

Bekhouche,

Hachache

et al. 2023

Crystals

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High-entropy FeCoCrNiMn (C1) and FeCoCrNiMn10Al10 (C2) alloys (HEAs) were mechanically alloyed for 24 h and heated to 900 °C (C1_900 °C and C2_900 °C). The powders were also compacted into pellets (C1_pellet and C2_pellet) and sintered at 500 °C for 1 h. Crystal structure, microstructure, magnetic, and mechanical properties were investigated by X-ray diffraction, scanning electron microscopy, vibrating sample magnetometry, and microindentation. During the milling process, a mixture of body-centered-cubic (BCC) and face-centered-cubic (FCC) phases with a crystallite size in the range of 9–13 nm was formed in the C1 HEA alloy. The dual FCC + BCC solid solutions remain for the C1_pellet and transform to a single FCC for the C1_900 °C powders. Al addition stabilizes the BCC structure in the FeCoCrNiMn10Al10 HEA alloy, as revealed by the structural refinement. The structure exhibits a mixture of BCC + FCC solid solutions for the C2 powders and BCC + FCC + CrCo sigma phase for the C2_pellet and C2_900 °C powders. The crystallite sizes are in the range of 6-93 nm for all the samples. The saturation magnetization (Ms), coercivity (Hc), and squareness ratio (Mr/Ms) are estimated to be 24.2 emu/g, 153.62 Oe, and 0.165, respectively, for C1 and 28.45 emu/g, 188.48 Oe, and 0.172 for C2. The C1_900 °C and C2_900 °C powders exhibit, respectively, paramagnetic and soft magnetic behaviors and an exchange bias at room temperature. The C1_pellet and C2_pellet HEAs show high hardness values of 584.85 Hv and 522.52 Hv, respectively.

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Section: Magnetic and Mechanical Propertiesmentioning

confidence: 99%