Results 41 to 50 of about 4,164 (246)

Research progress in additive manufacturing of AlCoCrFeNi2.1 eutectic high-entropy alloys

Cailiao gongcheng
AlCoCrFeNi2.1 eutectic high-entropy alloy is characterized by a fine, homogeneous, and regular lamellar structure, as well as good organizational structure and mechanical properties with both strength and plasticity over a wide range of temperature (70 ...
QIU Hefang, YUAN Xiaojing, LUO Weipeng, ZHANG Ze, CHENG Chen, CUI Fanfan   +5 more
doaj   +1 more source

Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation

Materials Research Letters, 2023
A heterostructuring strategy is an effective approach for abiding problems referred to as the strength-ductility trade-off. However, tailoring the heterostructure is an arduous problem.
Sujung Son, Jungwan Lee, Peyman Asghari-Rad, Rae Eon Kim, Hyojin Park, Jae-il Jang, Wen Chen, Yoon-Uk Heo, Hyoung Seop Kim   +8 more
doaj   +1 more source

Eutectic Reaction and Microstructure Stability in CoCrFeNiNbx High-Entropy Alloys

Metals, 2022
Seven arc-melted and then annealed CoCrFeNiNbx (x = 0.3–0.6) alloys are experimentally and thermodynamically investigated in the present work. All the as-cast and 1000 °C annealed CoCrFeNiNbx alloys are composed of face-centered cubic (FCC) and C14 Laves phases.
Xu Cao, Changjun Wu, Ya Liu, Haoping Peng, Xuping Su   +4 more
openaire   +2 more sources

Promoted room-temperature deformability and high-temperature strength synergy through zig-zag faceted interface design in TiNbTaWC0.7 eutectic refractory high-entropy alloy

Journal of Materials Research and Technology
With the development of aerospace technologies, there is an urgent demand for materials with better high-temperature performance. Despite the bottleneck of combining high-temperature strength and room-temperature deformability, refractory high-entropy ...
Yusheng Tian, Beiya Wang, Dongyu Wei, Decheng Kong, Rui Wang, Guoliang Zhu, Baode Sun   +6 more
doaj   +1 more source

Numerical simulation and experimental study of the temperature field of AlCoCrFeNi2.1 by selective laser melting

工程科学学报
AlCoCrFeNi2.1 eutectic high-entropy alloy is widely utilized in the aerospace, nuclear power, military, and automotive industries due to its exceptional properties, such as high strength, excellent ductility, and remarkable wear and oxidation resistance.
Congcong YUE, Ruixiang ZHANG, Wanting SUN, Dongzhou JIA, Ying FU, Xiangqing KONG   +5 more
doaj   +1 more source

Electron Microscopy Characterization of Ni-Cr-B-Si-C Laser Deposited Coatings [PDF]

, 2013
During laser deposition of Ni-Cr-B-Si-C alloys with high amounts of Cr and B, various microstructures and phases can be generated from the same chemical composition that results in heterogeneous properties in the clad layer.
Ocelik, V., Rao, J.C.,, Ocelík, V.,, Hemmati, I., Hosson, J.Th.M. De,, Ocelik, V.; id_orcid, Hemmati, I.,, De Hosson, J. Th. M., Rao, J. C.   +8 more
core   +1 more source

Large strength and decent ductility at 600 °C achieved in bimodal eutectic high-entropy alloys

Journal of Materials Research and Technology, 2023
Designed Co–Cr–Fe–Ni-Hf bimodal eutectic high-entropy alloy (BEHEA) exhibits the largest yield strength (2123 ± 38 MPa) at 600 °C reported in the literature due to hard BCC+Laves eutectics and achieves a decent ductility owing to the surrounding soft FCC+
Kaixuan Chen, Zhiping Xiong, Miaolan An, Ziqi Xu, Xingwang Cheng   +4 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

New approaches to casting hypereutectic Al-Si alloys to achieve simultaneous refinement of primary silicon and modification of eutectic silicon [PDF]

, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel UniversityHypereutectic Al-Si alloys are of increasing interest for applications that require a combination of light weight and high wear resistance, such as pistons ...
Al-Helal, Kawther
core  

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source