Results 101 to 110 of about 2,517,440 (244)

Ultrastrong and ductile medium-entropy alloys via hierarchical ordering

Science Advances
Long-range ordered phases in most high-entropy and medium-entropy alloys (HEAs/MEAs) exhibit poor ductility, stemming from their brittle nature of complex crystal structure with specific bonding state. Here, we propose a design strategy to severalfold strengthen a single-phase face-centered cubic (fcc) Ni 2 CoFeV ...
Lei Gu, Yonghao Zhao, Yong Li, Rui Hou, Fei Liang, Ruisheng Zhang, Yinxing Wu, Yong Fan, Ningning Liang, Bing Zhou, Yang Chen, Gang Sha, Guang Chen, Yandong Wang, Xiang Chen   +14 more
openaire   +2 more sources

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

Advanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser, Baptiste Le Roi, Omri Leshem, Joshua M. Grolman   +3 more
wiley   +1 more source

Micromechanical behavior of (CoCrNi)94Al3Ti3 medium-entropy alloy

Journal of Materials Research and Technology
The micromechanical behavior of (CoCrNi)94Al3Ti3 medium-entropy alloy (MEA) with and without Al2O3 nanoparticles was investigated by nanoindentation, microhardness, and microscratch tests.
Ming Liu, Zhitong Xu, Rui Liang, Shanhong Wan, Fuqian Yang, Jinyang Jiang   +5 more
doaj   +1 more source

New-Generation Materials for Hydrogen Storage in Medium-Entropy Alloys

Materials
This study presents the design, preparation, and characterization of thirty new medium-entropy alloys (MEAs) in three systems: Al-Ti-Nb-Zr, Al-Ti-Nb-V, and Al-Ti-Nb-Hf. The hardness of the alloys ranged from 320 to 800 HV0.3. Among the alloys studied, Al15Ti40Nb30Zr15 exhibited the highest-reversible hydrogen storage capacity (1.03 wt.%), with an H/M ...
Dagmara Varcholová, Katarína Kušnírová, Lenka Oroszová, Jens Möllmer, Marcus Lange, Katarína Gáborová, Branislav Buľko, Peter Demeter, Karel Saksl   +8 more
openaire   +3 more sources

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

Advanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic, Oladele A. Ogunseitan, Julie M. Schoenung   +2 more
wiley   +1 more source

Formation of B2 phase and its stability in equiatomic Al-Cu-Fe-Ni-Ti high entropy alloy

Journal of Alloys and Metallurgical Systems
In the present investigation, we synthesized a single-phase high-entropy alloy in Al-Cu-Fe-Ni-Ti system by melting of the individual metals using a radiofrequency induction furnace under an argon environment. The as-synthesized alloy showed the formation
Yogesh Kumar Yadav, Mohammad Abu Shaz, Nilay Krishna Mukhopadhyay, Thakur Prasad Yadav   +3 more
doaj   +1 more source

Superconductivity in the medium entropy alloys Nb2TiW and Nb2TiMo

22 pages, 9 figures;The manuscript with the same title will be published by Chinese Physics ...
Li, Kuan, Chen, Cui Qun, Zeng, Lingyong, Li, Longfu, Chen, Rui, Yu, Peifeng, Wang, Kangwang, Xiang, Zaichen, Yao, Dao Xin, Luo, Huixia   +9 more
openaire   +2 more sources

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

Advanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang, Jianxiang Zhao, Zhaoqi Chen, Hao Gong, Yinsen Yan, Junlei Tao, Yong Yang   +6 more
wiley   +1 more source

Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy

, 2018
International audienceElastic moduli of a set of equiatomic alloys (CrFeCoNi, CrCoNi, CrFeNi, FeCoNi, MnCoNi, MnFeNi, and CoNi), which are medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy were determined as a function of temperature over ...
Gadaud, P., P. Gadaud, J. Schreuer, Reinhart, C., George, E.P., Laplanche, G., K. Demtröder, Schreuer, J., G. Laplanche, C. Reinhart, Bärsch, C., Demtröder, K., C. Bärsch, E.P. George   +13 more
core   +1 more source