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相关论文: Preparation of the AlTiNiCuCox system high-entropy…

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High-entropy intermetallic compounds (HEICs) were fabricated by mechanical alloying and spark plasma sintering to fill a knowledge gap between the traditional high-entropy alloys (HEAs) and emerging high-entropy ceramics (HECs). Notably,…

材料科学 · 物理学 2019-02-28 Naixie Zhou , Sicong Jiang , Timothy Huang , Mingde Qin , Tao Hu , Jian Luo

As one of the most abundant interstitial elements, nitrogen (N) is effective in improving yield strength of metallic materials, due to interstitial solid solution strengthening. Doping N can substantially enhance the yield strength but…

The crystal structure and magnetoresponsive properties of Fe-doped MnCoGe alloys have been investigated using x-ray diffraction (XRD) and magnetic measurements. By alloying the Fe-containing isostructure compounds into MnCoGe, a…

材料科学 · 物理学 2013-02-05 G. J. Li , E. K. Liu , H. G. Zhang , Y. J. Zhang , J. L. Chen , W. H. Wang , H. W. Zhang , G. H. Wu , S. Y. Yu

In the Al-Co-Cu alloy system, both the decagonal quasicrystal with the space group of $P\overline{10}m2$ and its approximant Al$_{13}$Co$_4$ phase with monoclinic $Cm$ symmetry are present around 20 at.% Co-10 at.% Cu. In this study, we…

材料科学 · 物理学 2016-10-13 K. Nakayama , A. Mizutani , Y. Koyama

Using special quasirandom structures (SQS's), we perform first-principles calculations studying the metastable bcc NiCu and FeCu alloys which occur in Fe-Cu-Ni alloy steels as precipitated second phase. The mixing enthalpies, density of…

材料科学 · 物理学 2011-04-26 Yao-Ping Xie , Shi-Jin Zhao

This paper is devoted to experimental characterisation of linear thermal expansion coefficient (LTEC) and mechanical characteristics of the laser deposited Cu-Fe system multilayer functionally graded (FG) structures and binary Cu-Fe alloys,…

应用物理 · 物理学 2021-10-04 Konstantin Makarenko , Oleg Dubinin , Stepan Konev , Igor Shishkovsky

High entropy alloys (HEAs) are promising magnetocaloric materials with tunable operating temperature conditions using compositional modifications. Here, we combine experiments and first principles based spin modelling to engineer…

A novel y-y'-y" dual-superlattice superalloy, with promising mechanical properties up to elevated temperatures was recently reported. The present work employs state of the art chemical and spatial characterization techniques to study the…

We theoretically investigate magnetic anisotropy in materials with non-critical elements to determine which symmetry conditions and atomic shell filling favor enhanced magnetic anisotropy. We study the magnetocrystalline anisotropies (MCA)…

材料科学 · 物理学 2025-07-08 Nica Jane B. Ferrer , Gregory A. Fiete

Traditionally, increasing compositional complexity and chemical diversity of high entropy alloy ceramics whilst maintaining a stable single-phase solid solution has been a primary design strategy for the development of new ceramics.…

材料科学 · 物理学 2024-03-19 O. V. Pshyk , A. Vasylenko , P. Kuttel , B. Wicher , P. Schweizer , J. Michler , T. E. J. Edwards

Selective laser melting (SLM) is rapidly evolving to become a mainstream technology. However, the fundamental mechanisms of solidification and microstructure development inherent to the non-equilibrium conditions of this additive…

The decomposition process mechanisms have been investigated in a Fe50Au25Pd25 (at.%) alloy processed by severe plastic deformation. Phases were characterized by X-ray diffraction and microstructures were observed using transmission electron…

材料科学 · 物理学 2009-01-12 Xavier Sauvage , Abdelahad Chbihi , Dmitry Gunderov , E. V. Belozerov , A. G. Popov

The electronic structure of the nanolaminated transition metal carbide Ti2AlC has been investigated by bulk-sensitive soft x-ray emission spectroscopy. The measured Ti L, C K and Al L emission spectra are compared with calculated spectra…

材料科学 · 物理学 2011-12-30 M. Magnuson , O. Wilhelmsson , J. -P. Palmquist , U. Jansson , M. Mattesini , S. Li , R. Ahuja , O. Eriksson

High-entropy alloys (HEA) form solid solutions with large chemical disorder and excellent mechanical properties. We investigate the origin of HEA strengthening in face-centered cubic (FCC) single-phase HEAs through molecular dynamics…

材料科学 · 物理学 2025-01-08 A. Esfandiarpour , S. Papanikolaou , M. Alava

This work investigates the effect of copper substitution on the magnetic properties of SmCo$_{5}$ thin films synthesized by molecular beam epitaxy. A series of thin films with varying concentrations of Cu were grown under otherwise…

Density functional theory based computational study has been conducted in order to investigate the effect of substitution of Cr and Co components by Si on the structure, mechanical, electronic, and magnetic properties of the high entropy…

材料科学 · 物理学 2021-03-15 S. Assa Aravindh , Andrey A. Kistanov , Matti Alatalo , Jukka Kömi , Marko Huttula , Wei Cao

The magnetic properties and transition from an antiferromagnetic (AFM) to a ferromagnetic (FM) state in semi Heusler alloys Cu1-xNixMnSb, with x < 0.3 have been investigated in details by dc magnetization, neutron diffraction, and neutron…

材料科学 · 物理学 2012-06-12 Madhumita Halder , S. M. Yusuf , Amit Kumar , A. K. Nigam , L. Keller

FePd thin films have been recently considered as promising material for high-density magnetic storage devices. However, it is necessary to find a proper method of fabrication for the (001)-textured and chemically well-ordered alloy. In this…

Even though, the crystal structure of the intermediate (S') and the equilibrium S (Al2CuMg) phase were subject of many investigations by using mostly imaging or diffraction techniques, the results remain still controversial. In this study,…

材料科学 · 物理学 2019-05-09 Danny Petschke , Frank Lotter , Torsten E. M. Staab

The phase separation behaviors from the single B2 ordered phase into the two separate B2 and L2$_1$ ordered phases in the X-Al-Ti (X: Fe, Co, and Ni) alloys are analyzed using the cluster variation method (CVM) with the interaction energies…

材料科学 · 物理学 2019-10-23 Ryo Yamada , Tetsuo Mohri