Results 1 to 10 of about 171,915 (303)

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   +6 more sources

Effect of local anisotropy on fatigue crack initiation in a coarse grained nickel-base superalloy

MATEC Web of Conferences, 2018
In the present work, theoretical approaches, based on grain orientation dependent Young’s modulus and Schmid factor are used to describe the influence of local grain orientation on crack initiation behaviour of the coarse grained nickel base superalloy ...
Engel Benedikt, Beck Tilmann, Moch Nadine, Gottschalk Hanno, Schmitz Sebastian   +4 more
doaj   +2 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   +4 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
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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   +4 more sources

Foliar bio-stimulant application at flower initiation optimizes chickpea productivity and grain quality in rainfed environments [PDF]

BMC Plant Biology
Bio-stimulants are emerging as effective agents to improve crop performance under abiotic stress, particularly in rain-fed systems. This two-year field study evaluated the effects of foliar-applied bio-stimulant (Actibion) (1250 mL ha− 1) composed of ...
Muhammad Awais Bashir Khan, Muhammad Asif, Muhammad Mansoor Javaid, Majeeda Rasheed, Sezai Ercisli, Abdulwahed Fahad Alrefaei, Ahmed Fathy Yousef, Muhammad Moaaz Ali   +7 more
doaj   +2 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   +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

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

Journal 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, Linhan Li, Kalubi Ren, Yanlin Jia, Yong Pang, Zhu Xiao, Yanbin Jiang, Zhou Li   +7 more
doaj   +1 more source