Results 31 to 40 of about 30,077 (264)

Achieving an ultrastrong yet ductile copper alloy via microstructural heterogeneity with dense ordered nanoprecipitates

Materials Research Letters
Cast Al-containing cupronickel alloys are strong, corrosion resistant and anti-bio fouling, yet suffering from poor ductility due to intergranular brittle phase and inhomogeneous intragranular precipitation.
Rui Zhong, Weiwen Zhang, Chao Zhao, Zongqiang Luo, Haokai Dong   +4 more
doaj   +1 more source

Quantitative MRI Uncovers Subtle Cortical Damage in Myelin Oligodendrocyte Glycoprotein Antibody‐Associated Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine whether myelin‐sensitive quantitative MRI reveals microstructural abnormalities in normal‐appearing cortex (NACtx) in myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD), indicating that conventional MRI underestimates remission residual cortical injury.
Valentina Camera, Agnese Tamanti, Silvia Messina, Nicola Dall'Osto, Teresa Maltempo, Stefano Ziccardi, Matteo Foschi, Maria Grazia Piscaglia, Diana Ferraro, Francesco Crescenzo, Francesca Rossi, Albulena Bajrami, Sabrina Marangoni, Damiano Marastoni, Francesca Benedetta Pizzini, Maria Isabel Leite, Roberta Magliozzi, Patrick Waters, Massimiliano Calabrese, Jacqueline Palace, Ruth Geraldes   +20 more
wiley   +1 more source

Dynamic reconstruction of heterogeneous materials and microstructure evolution

Physical Review E, 2015
Reconstructing heterogeneous materials from limited structural information has been a topic that attracts extensive research efforts and still poses many challenges. The Yeong-Torquato procedure is one of the most popular reconstruction techniques, in which the material reconstruction problem based on a set of spatial correlation functions is ...
Shaohua, Chen, Hechao, Li, Yang, Jiao
openaire   +3 more sources

Local precipitation phase inhomogeneity enables superior elastocaloric effects in additively manufactured NiTi alloys via in situ and post-heat treatment

Virtual and Physical Prototyping
NiTi shape memory alloys have been widely recognised for their functional properties, especially the elastocaloric effect. However, the elastocaloric performance is often limited by intrinsic phase transformation hysteresis.
Jiahui Fang, Jianbin Zhan, Liang Zhu, Ruijin Ma, Shengqain Wang, Yufan Zhao, Lawrence E. Murr, Huajun Cao, Kun Li   +8 more
doaj   +1 more source

Ultrahigh strength and plasticity in laser rapid solidified Al–Si nanoscale eutectics

Materials Research Letters, 2020
As-cast Al–20wt.% Si alloys were processed via laser rapid solidification (LRS) techniques to create eutectic microstructures with nanoscale interconnected, nanotwinned Si fibers. LRS morphologies exhibit higher flow stress, exceeding 800 MPa and uniform
Huai-Hsun Lien, Jyoti Mazumder, Jian Wang, Amit Misra   +3 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Microstructure and mechanical properties of hyperuniform heterogeneous materials

Physical Review E, 2017
A hyperuniform random heterogeneous material is one in which the local volume fraction fluctuations in an observation window decay faster than the reciprocal window volume as the window size increases. Recent studies show that this class of materials are endowed with superior physical properties such as large isotropic photonic band gaps and optimal ...
Yaopengxiao, Xu, Shaohua, Chen, Pei-En, Chen, Wenxiang, Xu, Yang, Jiao   +4 more
openaire   +3 more sources

On the creep behaviour of a hetero-structured and L12-strengthened medium-entropy alloy

Virtual and Physical Prototyping
Recently, some L12-strengthened or hetero-structured high/medium-entropy alloys (HEAs/MEAs) which possess extraordinary strength-ductility synergy at both ambient and high temperatures have been developed, demonstrating fascinating potential for critical
Zhiyong Ji, Chunlei Qiu
doaj   +1 more source

Improved tensile properties in heterostructured 1050/7050 Al sheets produced by accumulative roll bonding

Journal of Materials Research and Technology, 2022
Tougher and stronger alloys are desired for structural applications, but the strength-ductility trade-off limits it. In order to overcome this issue, heterogeneous structures can be developed in high-strength materials to restore an acceptable ductility ...
Danielle Cristina Camilo Magalhães, Osvaldo Mitsuyuki Cintho, Vitor Luiz Sordi, Andrea Kliauga   +3 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