Results 11 to 20 of about 35,767 (354)

Grain Initiation and Grain Refinement: An Overview

open access: yesMetals, 2022
Heterogeneous nucleation and grain initiation are two different processes in early-stage solidification (ESS), although both are deterministic. Heterogeneous nucleation refers to the formation of a 2-dimensional (2D) nucleus (a crystal plane of the solid)
Zhongyun Fan, Feng Gao
doaj   +6 more sources

Grain refinement by rapid cyclic heating and its effect on cleavage fracture behaviour of an S690 high strength steel

open access: goldJournal of Materials Research and Technology, 2023
The simultaneous improvement of strength and toughness with grain refinement is widely known. However, the literature lacks studies on the grain refinement effect on cleavage fracture toughness in multiphase steels containing detrimental brittle ...
V. Bertolo   +7 more
doaj   +2 more sources

Effect of solutes on grain refinement

open access: yesProgress in Materials Science, 2022
Abstract Grain refinement not only enhances the mechanical performance of as-cast metallic materials but also provides an effective mechanism for controlling cast defects, such as macro-segregation, porosity and coarse second phase particles. Therefore, understanding grain refinement of alloys with different solute additions is of both theoretical ...
Z Fan, F Gao, H Men
exaly   +3 more sources

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   +3 more sources

Grain refinement and strength enhancement in Mg wrought alloys: A review

open access: yesJournal of Magnesium and Alloys, 2023
Low absolute strength becomes one major obstacle for the wider applications of low/no rare-earth (RE) containing Mg alloys. This review firstly demonstrates the importance of grain refinement in improving strength of Mg alloys by comprehensively ...
Sen Wang   +7 more
doaj   +3 more sources

Impeding Nucleation for More Significant Grain Refinement. [PDF]

open access: yesSci Rep, 2020
© 2020, The Author(s). Grain refinement has been a topic of extensive research due to its scientific and technological importance as a common industrial practice for over seven decades.
Fan Z, Gao F, Jiang B, Que Z.
europepmc   +2 more sources

Nucleation and Grain Refinement

open access: yesMaterials Science Forum, 2010
The nucleation dynamics and grain refinement during solidification are reviewed. Control of the nucleation of phases is an essential step in the manufacture of optimized materials. Development of inoculants is still based on trial-and-error. Using aluminium as an example, it is shown that there is much room for significant improvements.
Dahle, Arne K.
openaire   +4 more sources

Recent advances on grain refinement of magnesium rare-earth alloys during the whole casting processes: A review

open access: yesJournal of Magnesium and Alloys, 2023
High-performance cast magnesium rare-earth (Mg-RE) alloys are one of the most important materials among all developed Mg alloy families, and have shown great potential in military and weapons, aerospace and aviation, orthopedic implants, etc. Controlling
Guohua Wu   +4 more
doaj   +3 more sources

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

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