Results 21 to 30 of about 30,077 (264)

Microstructural Stability of Ti based Composites Fabricated by Spark Plasma Sintering [PDF]

MATEC Web of Conferences, 2020
In our previous study, the effects of TiC heterogeneous nucleation site particles on formability and microstructure of additive manufactured (AMed) Ti-6Al-4V products were studied.
Watanabe Yoshimi, Hattori Miwa, Chiba Tadachika, Sato Hisashi   +3 more
doaj   +1 more source

Hetero-Deformation Induced Hardening in a CoCrFeNiMn High-Entropy Alloy

Crystals, 2023
One of the most important issues in materials science is to overcome the strength–ductility trade-off in engineering alloys. The formation of heterogeneous and complex microstructures is a useful approach to achieving this purpose. In this investigation,
Hamed Shahmir, Parham Saeedpour, Mohammad Sajad Mehranpour, Seyed Amir Arsalan Shams, Chong Soo Lee   +4 more
doaj   +1 more source

Ultrasound scatter in heterogeneous 3D microstructures [PDF]

AIP Conference Proceedings, 2017
This paper reports on a computational study of ultrasound propagation in heterogeneous metal microstructures. Random spatial fluctuations in elastic properties over a range of length scales relative to ultrasound wavelength can give rise to scatter-induced attenuation, backscatter noise, and phase front aberration.
B. J. Engle, R. A. Roberts, R. J. Grandin   +2 more
openaire   +1 more source

Heterogeneity in microstructural deterioration following spinal cord injury [PDF]

Bone, 2021
Modelling and remodelling adapt bone morphology to accommodate strains commonly encountered during loading. If strains exceed a threshold threatening fracture, modelling-based bone formation increases bone volume reducing these strains. If unloading reduces strains below a threshold that inhibits resorption, increased remodelling-based bone resorption ...
Ghasem-Zadeh, A, Galea, MP, Nunn, A, Panisset, M, Wang, X-F, Iuliano, S, Boyd, SK, Forwood, MR, Seeman, E   +8 more
openaire   +4 more sources

Powder Metallurgy Processing and Mechanical Properties of Controlled Ti-24Nb-4Zr-8Sn Heterogeneous Microstructures

Metals, 2020
This paper gives some insights into the fabrication process of a heterogeneous structured β-metastable type Ti-24Nb-4Zr-8Sn alloy, and the associated mechanical properties optimization of this biocompatible and low elastic modulus material.
Benoît Fer, David Tingaud, Azziz Hocini, Yulin Hao, Eric Leroy, Frédéric Prima, Guy Dirras   +6 more
doaj   +1 more source

Study of the nonlinear mechanical behavior of rock materials using the FFT numerical method based on the actual mesostructure

矿业科学学报, 2022
Rock heterogeneity (such as mineral inclusions, micro-cracks, micro-voids and other microstructures) significantly affects its nonlinear mechanical behavior and failure process.
Li Mingyao, Peng Lei, Zuo Jianping, Wang Zhimin, Li Shaojin, Xue Xiren   +5 more
doaj   +1 more source

MATBOX: An Open-source Microstructure Analysis Toolbox for microstructure generation, segmentation, characterization, visualization, correlation, and meshing

SoftwareX, 2022
MATBOX is an easy-to-use, all-in-one, MATLAB application for microstructure numerical analysis, including microstructure numerical generation, image filtering and microstructure segmentation, microstructure characterization, three-dimensional ...
F.L.E. Usseglio-Viretta, P. Patel, E. Bernhardt, A. Mistry, P.P. Mukherjee, J. Allen, S.J. Cooper, J. Laurencin, K. Smith   +8 more
doaj   +1 more source

Obtaining Heterogeneous Microstructure and Enhanced Mechanical Properties in ECAP-Processed AZ61 Alloys via Single-Pass Rolling with Increased Rolling Reduction

Metals
Material design and preparation based on constructing heterogeneous microstructures can break the conventional performance limitations of fine-grained magnesium alloys.
Qiong Xu, Yuhua Li, Aibin Ma, Jinghua Jiang, Donghui Yang   +4 more
doaj   +1 more source

Multi-layered heterostructured CoCrFeMnNi high-entropy alloy processed using direct energy deposition and ultrasonic nanocrystalline surface modification

Journal of Materials Research and Technology, 2022
The advantages of heterostructured materials as structural materials include superior mechanical properties and the ability to tailor the strength-ductility combination via microstructure customization.
Gang Hee Gu, Rae Eon Kim, Eun Seong Kim, Jungwan Lee, Auezhan Amanov, Hyoung Seop Kim   +5 more
doaj   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source