Results 11 to 20 of about 1,411,746 (361)

Determination of the degree of grain refinement in irradiated U-Mo fuels [PDF]

open access: yesHeliyon, 2018
A simple, repeatable method for determination of the degree of grain refinement in irradiated Uranium-Molybdenum fuels has been developed. This method involves mechanical potting and polishing of samples along with examination using a scanning electron ...
Andrew M. Casella   +3 more
doaj   +2 more sources

Image quality improvement in low‐dose chest CT with deep learning image reconstruction

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Objectives To investigate the clinical utility of deep learning image reconstruction (DLIR) for improving image quality in low‐dose chest CT in comparison with 40% adaptive statistical iterative reconstruction‐Veo (ASiR‐V40%) algorithm. Methods This retrospective study included 86 patients who underwent low‐dose CT for lung cancer screening ...
Qian Tian   +7 more
wiley   +1 more source

Solute Effect on Grain Refinement of Al- and Mg-Alloys: An Overview of the Recent Advances Made by the LiME Research Hub

open access: yesMetals, 2022
Grain refinement is of importance for metallic materials since it provides multiple benefits, such as improved castability, reduced casting defects and improved mechanical properties.
Feng Gao, Zhongyun Fan
doaj   +1 more source

Grain Refinement of Deoxidized Copper [PDF]

open access: yesMetallurgical and Materials Transactions A, 2016
Abstract This study reports the current status of grain refinement of copper accompanied in particular by a critical appraisal of grain refinement of phosphorus-deoxidized, high residual P (DHP) copper microalloyed with 150 ppm Ag. Some deviations exist in terms of the growth restriction factor (Q) framework, on the basis of empirical ...
Balart, MJ, Patel, JB, Gao, F, Fan, Z
openaire   +4 more sources

Creep Characterization of Inconel 718 Lattice Metamaterials Manufactured by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView., 2023
Herein, the creep characteristics of additively manufactured Inconel 718 metamaterials are investigated. The creep behavior of metamaterials and the effects of microstructural defects are assessed, and the microstructure defects are accurately captured using Kachanov's creep damage model.
Akash Singh Bhuwal   +5 more
wiley   +1 more source

Contextual Refinement Types [PDF]

open access: yesEPTCS 396, 2023, pp. 4-19, 2023
We develop an extension of the proof environment Beluga with datasort refinement types and study its impact on mechanized proofs. In particular, we introduce refinement schemas, which provide fine-grained classification for the structures of contexts and binders.
arxiv   +1 more source

The effect of the austenite grain refinement on the tensile and impact properties of cast Hadfield steel [PDF]

open access: yesMaterials Research, 2018
This paper studied the effect of the austenite grain refinement on the tensile and impact properties of a cast Hadfield steel (12 % Mn, 1.2 %C and 0.65 % Si). The austenite grain refinement was obtained by hafnium inoculation.
Bianka Nani Venturelli   +2 more
doaj   +2 more sources

Grain Refinement of Alloys in Fusion-Based Additive Manufacturing Processes

open access: yesMetallurgical and Materials Transactions. A, 2020
One of the less desirable aspects of fusion-based additive manufacturing is the propensity for coarse columnar grain structures crossing build layers to form.
Duyao Zhang   +9 more
semanticscholar   +1 more source

Dislocation exhaustion and ultra-hardening of nanograined metals by phase transformation at grain boundaries

open access: yesNature Communications, 2022
Strengthening of metals by grain refinement is limited by the inverse Hall-Petch effect. Here, the authors show nanograined metals can be strengthened by exhausting lattice dislocations via triggering of phase transformation at grain boundaries, instead ...
Shangshu Wu   +9 more
doaj   +1 more source

Comparative Study on the Grain Refinement of Al-Si Alloy Solidified under the Impact of Pulsed Electric Current and Travelling Magnetic Field

open access: yesMetals, 2016
It is high of commercial importance to generate the grain refinement in alloys during solidification by means of electromagnetic fields. Two typical patterns of electromagnetic fields, pulsed electric currents (ECP) and traveling magnetic field (TMF ...
Yunhu Zhang   +8 more
doaj   +1 more source

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