Results 1 to 10 of about 2,037,951 (187)

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   +5 more sources

Competition for Nucleation and Grain Initiation during Solidification

open access: yesMetals, 2022
Without the addition of any grain refiner, the inclusion particles in a melt will induce heterogeneous nucleation and grain initiation during the solidification of metallic materials.
Feng Gao, Zhongyun Fan
doaj   +5 more sources

An Analytical Study for Explosive Grain Initiation

open access: yesCrystals
The most common form of solidification of metals is heterogeneous nucleation, in which the particles, regardless of whether they are endogenous or exogenous, nucleate the primary crystal phase, becoming solid crystal particles and, subsequently ...
Feng Gao, Zhongyun Fan
doaj   +5 more sources

Heterogeneous Nucleation and Grain Initiation on a Single Substrate

open access: yesMetals, 2022
Recently, we have proposed a new framework for early stages solidification, in which heterogeneous nucleation and grain initiation have been treated as separate processes.
Zhongyun Fan, Hua Men
doaj   +2 more sources

Efficiency of Sucrose to Starch Metabolism Is Related to the Initiation of Inferior Grain Filling in Large Panicle Rice

open access: yesFrontiers in Plant Science, 2021
The poor grain-filling initiation often causes the poor development of inferior spikelets (IS) which limits the yield potential of large panicle rice (Oryza sativa L.). However, it remains unclear why IS often has poor grain-filling initiation.
Zhengrong Jiang   +35 more
doaj   +2 more sources

The Inferior Grain Filling Initiation Promotes the Source Strength of Rice Leaves

open access: yesRice, 2023
Poor grain-filling initiation in inferior spikelets severely impedes rice yield improvement, while photo-assimilates from source leaves can greatly stimulate the initiation of inferior grain-filling (sink).
Zhengrong Jiang   +12 more
doaj   +2 more sources

Statistical grain size effects in fretting crack initiation

open access: yesTribology International, 2017
A crystal plasticity computational framework is developed and validated to investigate the microstructure sensitivity of crack initiation in fretting. Randomly distributed microstructure geometries are incorporated into a partial-slip finite element fretting model.
Ashton, Patrick J.   +2 more
openaire   +3 more sources

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

Effect of ultrasonic peening treatment on the fatigue behaviors of a magnesium alloy up to very high cycle regime

open access: yesJournal of Magnesium and Alloys, 2022
Ultrasonic fatigue tests are performed on a magnesium alloy with and without ultrasonic peening treatment (UPT). Surface enhancement layer leads to the complete change of crack initiation sites.
Yao Chen   +6 more
doaj   +1 more source

Effect of misorientation of grain boundaries on the discontinuous precipitates of Cu–Ni–Si alloy

open access: yesJournal of Materials Research and Technology, 2023
In this study, the effects of differences in grain size, grain boundary type and misorientation on the initiation of discontinuous precipitates are investigated for the Cu–5Ni–1.25Si alloy.
Xianfeng Liao   +7 more
doaj   +1 more source

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