Results 1 to 10 of about 2,433 (157)

MoNbTaV Medium-Entropy Alloy [PDF]

Entropy, 2016
Guided by CALPHAD (Calculation of Phase Diagrams) modeling, the refractory medium-entropy alloy MoNbTaV was synthesized by vacuum arc melting under a high-purity argon atmosphere. A body-centered cubic solid solution phase was experimentally confirmed in
Hongwei Yao, Jun-Wei Qiao, Michael C. Gao, Jeffrey A. Hawk, Sheng-Guo Ma, Hefeng Zhou   +5 more
doaj   +4 more sources

Chemical medium-range order in a medium-entropy alloy [PDF]

Nature Communications, 2022
The existence of chemical medium-range order (CMRO) in high- and medium- entropy alloys remains conjectural. Here the authors show evidences of CMRO by electron diffraction spots of lattice periodicity, observable entities, occupancy of preferential ...
Jing Wang, Ping Jiang, Fuping Yuan, Xiaolei Wu   +3 more
doaj   +5 more sources

Periodic spinodal decomposition in double–strengthened medium–entropy alloy [PDF]

Nature Communications
Achieving an optimal balance between strength and ductility in advanced engineering materials has long been a challenge for researchers. In the field of material strengthening, most approaches that prevent or impede the motion of dislocations involve ...
Hyojin Park, Farahnaz Haftlang, Yoon–Uk Heo, Jae Bok Seol, Zhijun Wang, Hyoung Seop Kim   +5 more
doaj   +4 more sources

Electrodeposition of a CoNiCu medium-entropy alloy in a water-in-oil emulsion

Electrochemistry Communications, 2021
A medium-entropy alloy (MEA) of CoNiCu with a face-centered cubic structure was successfully obtained by electrochemical deposition. To achieve a nearly equiatomic composition, a water-in-oil emulsion was used as the solution for electrodeposition. Since
Yuki Murakami, Yuki Maeda, Atsushi Kitada, Kuniaki Murase, Kazuhiro Fukami   +4 more
doaj   +3 more sources

Hydrogen-Stabilized ScYNdGd Medium-Entropy Alloy for Hydrogen Storage. [PDF]

J Am Chem Soc
The research on the functional properties of medium- and high-entropy alloys (MEAs and HEAs) has been in the spotlight recently. Many significant discoveries have been made lately in hydrogen-based economy-related research where these alloys may be utilized in all of its key sectors: water electrolysis, hydrogen storage, and fuel cell applications ...
Balcerzak M, Ponsoni JB, Petersen H, Menéndez C, Ternieden J, Zhang L, Winkelmann F, Aguey-Zinsou KF, Hirscher M, Felderhoff M.   +9 more
europepmc   +5 more sources

Alloy design and fabrication of ingots in Cu-Zn-Mn-Ni-Sn high-entropy and Cu-Zn-Mn-Ni medium-entropy brasses

Materials & Design, 2019
Cu-Zn-Mn-Ni-Sn high-entropy (HE) and Cu-Zn-Mn-Ni medium-entropy (ME) brasses were designed and the ingots were fabricated by conventional casting process via metallic mold casting. The ingots of the equiatomic CuZnMnNi ME brass showed dendrite structures
Takeshi Nagase, Akihiro Shibata, Mitsuaki Matsumuro, Mamoru Takemura, Satoshi Semboshi   +4 more
doaj   +3 more sources

Rejuvenation as the origin of planar defects in the CrCoNi medium entropy alloy. [PDF]

Nat Commun
AbstractHigh or medium- entropy alloys (HEAs/MEAs) are multi-principal element alloys with equal atomic elemental composition, some of which have shown record-breaking mechanical performance. However, the link between short-range order (SRO) and the exceptional mechanical properties of these alloys has remained elusive.
Yang Y, Yin S, Yu Q, Zhu Y, Ding J, Zhang R, Ophus C, Asta M, Ritchie RO, Minor AM.   +9 more
europepmc   +6 more sources

Segregation-dislocation self-organized structures ductilize a work-hardened medium entropy alloy [PDF]

Nature Communications
Dislocations are the intrinsic origin of crystal plasticity. However, initial high-density dislocations in work-hardened materials are commonly asserted to be detrimental to ductility according to textbook strengthening theory.
Bojing Guo, Dingcong Cui, Qingfeng Wu, Yuemin Ma, Daixiu Wei, Kumara L. S. R, Yashan Zhang, Chenbo Xu, Zhijun Wang, Junjie Li, Xin Lin, Jincheng Wang, Xun-li Wang, Feng He   +13 more
doaj   +2 more sources

Microstructure and mechanical properties of Fe40Cr25Ni25Al5Ti5 medium entropy alloy

Cailiao gongcheng, 2023
Fe40Cr25Ni25Al5Ti5 (atom fraction/%) medium entropy alloys (MEAs) were prepared by a vacuum arc-melting furnace with a water-cooled copper mold, and the microstructure, mechanical properties and strengthening deformation mechanism of the alloy in solid ...
HU Zhaohui, LOU Zhaokun, WANG Xin, ZHANG Li, ZHAO Yuan, YU Jianxin, ZHANG Lu   +6 more
doaj   +2 more sources

Magnetocaloric Effect in ScGdHo Medium-entropy Alloy [PDF]

Journal of Superconductivity and Novel Magnetism, 2022
Abstract The search for effective solid-state refrigerant for magnetocaloric application is one of the main-stream topics in materials science. Rareearth multi-principal element alloys seem to be promising candidates for these purposes. In this study, we address the issues of structure formation, magnetic and magnetocaloric properties in ScGdHo ...
Sergey Uporov, Evgenii Sterkhov, Iliya Balyakin   +2 more
openaire   +1 more source