Results 51 to 60 of about 15,726 (187)

Effective and back stresses evolution upon cycling a high-entropy alloy

Materials Research Letters, 2022
We report on the effective and back stresses evolution of a CoCrFeMnNi high-entropy alloy (HEA) by partitioning its cyclic hysteresis loops. It was found that the cyclic stress response of the HEA predominantly originates from the back stress evolution ...
Kaiju Lu, Ankur Chauhan, Fabian Knöpfle, Jarir Aktaa   +3 more
doaj   +1 more source

Mechanical Behavior of a Medium-Entropy Fe65(CoNi)25Cr9.5C0.5 Alloy Produced by Selective Laser Melting

, 2023
Specimens of a medium-entropy Fe65(CoNi)25Cr9.5C0.5 (in at.%) alloy were produced using additive manufacturing (selective laser melting, SLM). The selected parameters of SLM resulted in a very high density in the specimens with a residual porosity of ...
Klimova, М., Zherebtsov, S., Astakhov, I., Stepanov, N., Shaysultanov, D., Evlashin, S., Povolyaeva, E.   +6 more
core   +1 more source

Nobel Metal Based High Entropy Alloy for Conversion of Carbon Dioxide (CO2) to Hydrocarbon

, 2019
Conversion of carbon-di-oxide into selective hydrocarbon using stable catalyst remains a holy-grail in catalysis community. The high overpotential, stability, and selectivity in use of a single metal-based catalyst still remain a challenge.
Kirtiman Deo, Malviya, K. G., Pradeep, Subramanian, Nellaiappan, Krishanu, Biswas, Nirmal, Kumar, Arko, Parui, Chandra Sekhar, Tiwary, Abhishek Kumar, Singh, Sudhanshu, Sharma, Ritesh, Kumar   +9 more
core   +1 more source

High entropy alloy nanoparticle formation at low temperatures

, 2022
Entropy-driven formation of high entropy alloy (HEA) nanoparticles from metal precursors requires high temperatures and controlled cooling rates. However, several proposed HEA nanoparticle synthesis strategies avoid the high-temperature regime.
Espen D., Bøjesen, Christian M. , Clausen, Dragos, Stoian, Asger W. , Rosenkranz, Jan , Rossmeisl, Nicolas , Schlegel, Tobias M. , Nielsen, Jette K. , Mathiesen, Rebecca, Pittkowski, Rahel L. , Welten, Wouter, van Beek, Qinyi , Chen, Jan , Bucher, Kirsten M. Ø. , Jensen, Matthias, Arenz   +14 more
core   +1 more source

On the strength and fracture toughness of an additive manufactured CrCoNi medium-entropy alloy [PDF]

, 2023
An additively manufactured (nominally equiatomic) CrCoNi alloy was processed by laser powder bed fusion (LPBF). At ambient temperatures (298 K), this medium-entropy alloy displayed a yield strength, σ y of ∼691 ± 9 MPa, and an ...
Minor, Andrew M, Ritchie, Robert O, Pei Wang, Sheng, Huang, Huang Sheng, Michalek, Matthew, Zhang, Mingwei, Kwang B. Lau, Lau, Kwang B, Upadrasta Ramamurty, Andrew M. Minor, Cook, David H, Matthew Michalek, Robert O. Ritchie, Ramamurty, Upadrasta, Punit Kumar, Mingwei Zhang, Kumar, Punit, David H. Cook, Wang, Pei   +19 more
core   +1 more source

Microstructure and mechanical properties of Al-Co-Fe-Ni eutectic medium-entropy-alloys

Next Materials
The Al-Co-Fe-Ni eutectic medium-entropy-alloys (EMEAs) were designed to study its microstructure and mechanical properties. It was found that among these medium-entropy alloys, the AlCoFe1.5Ni2.0 alloy has the mixed eutectic structures of CoFeNi-type FCC
Wenxuan Li, Longtu Yang, Xilin Gan, Yong Dong   +3 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

Martensitic transformation in CrCoNi medium-entropy alloy at cryogenic temperature

, 2021
We investigated the in situ deformation behavior of the CrCoNi medium-entropy alloy at a cryogenic temperature of 140 K and compared it with deformation at room temperature.
Lan, Si, Haiyan He, Kawasaki, Takuro, Stefanus Harjo, Wu, Zhenduo, Harjo, Stefanus, Yuntian Zhu, He, Haiyan, Zhou, Hao, Takuro Kawasaki, Naeem, Muhammad; id_orcid, Zhu, Yuntian, Hao Zhou, Si Lan, Xun-Li Wang, Wang, Xun-Li, Muhammad Naeem, Zhenduo Wu   +17 more
core   +1 more source

Effect of Cr₃C₂ Addition on Microstructure and Mechanical Properties of WC-CoNiFe Cemented Carbides

Metals
In traditional cemented carbides, Co is mainly used as a binder. Recently, replacing Co with medium- to high-entropy alloys has shown significant improvements in hardness, fracture toughness, high-temperature oxidation resistance, and corrosion ...
Jinbo Wu, Daping Ren, Bo Xie, Rongyue He, Zhanji Geng, Zichun Zhang, Yang Liu, Dong Wang, Yanghui Zhu, Wei Zhang   +9 more
doaj   +1 more source

Tribocorrosion Behavior of CoCrNi Medium Entropy Alloy in Simulated Seawater

Metals, 2022
Understanding the fundamental behaviors of tribocorrosion for metals is critical for their possible application in seawater. For the recently emerging medium entropy alloys (MEAs), while mechanical wear and corrosion phenomena have been established, such
Xian-Zong Wang, Yanfei Wang, Zhuobin Huang, Qing Zhou, Haifeng Wang   +4 more
doaj   +1 more source