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Grain Initiation and Grain Refinement: An Overview

Metals, 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   +7 more sources

Heterogeneous Nucleation and Grain Initiation on a Single Substrate

Metals, 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   +7 more sources

Competition for Nucleation and Grain Initiation during Solidification

Metals, 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   +6 more sources

An Analytical Study for Explosive Grain Initiation

Crystals
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   +7 more sources

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

Frontiers 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, Zhengrong Jiang, Zhengrong Jiang, Qiuli Chen, Qiuli Chen, Qiuli Chen, Lin Chen, Lin Chen, Lin Chen, Lin Chen, Hongyi Yang, Hongyi Yang, Hongyi Yang, Meichen Zhu, Meichen Zhu, Meichen Zhu, Yanfeng Ding, Yanfeng Ding, Yanfeng Ding, Yanfeng Ding, Weiwei Li, Weiwei Li, Weiwei Li, Weiwei Li, Zhenghui Liu, Zhenghui Liu, Zhenghui Liu, Zhenghui Liu, Yu Jiang, Yu Jiang, Yu Jiang, Yu Jiang, Ganghua Li, Ganghua Li, Ganghua Li, Ganghua Li   +35 more
doaj   +4 more sources

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

Rice, 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, Hongyi Yang, Meichen Zhu, Longmei Wu, Feiyu Yan, Haoyu Qian, Wenjun He, Dun Liu, Hong Chen, Lin Chen, Yanfeng Ding, Soulaiman Sakr, Ganghua Li   +12 more
doaj   +2 more sources

Altering tensile and crack initiation behavior in a metastable β titanium alloy via designing grain size and precipitates

Journal of Materials Research and Technology
Microstructure can play a vital role in defining mechanical properties of metallic materials. To elucidate this correlation in the case of Ti–15Mo–3Nb–3Al-0.2Si (TB8) alloy, herein, we designed various microstructures via heat treatment exploring the ...
Chun Yuan, Dan Liu, Xingchen Xu, Junfeng Cui, Yongkai Peng, Chaowen Huang, Sara Bagherifard   +6 more
doaj   +3 more sources

Influence of grain size and grain boundary misorientation on the fatigue crack initiation mechanisms of textured AZ31 Mg alloy [PDF]

Scripta Materialia, 2021
The deformation and crack initiation mechanisms were analyzed in a textured AZ31B-O Mg alloy subjected to fully-reversed, strain-controlled cyclic deformation along the rolling direction after 50 cycles (approximately 33% of the fatigue life).
Abbas Jamali, A. Ma, J. Llorca
semanticscholar   +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

Metals, 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

Journal 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, Fulin Liu, Chao He, Lang Li, Chong Wang, Yongjie Liu, Qingyuan Wang   +6 more
doaj   +1 more source