Relevant bibliographies by topics / Dendrites size modification

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Academic literature on the topic 'Dendrites size modification'

Author: Grafiati
Published: 5 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "Dendrites size modification"

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Holovko, V. "NANOMODIFICATION OF WELD METAL DENDRITE STRUCTURE." Deutsche internationale Zeitschrift für zeitgenössische Wissenschaft 48 (January 16, 2023): 41–46. https://doi.org/10.5281/zenodo.7541168.

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The shape of dendrite grains in low-alloy steel submerged-arc weld deposits has been examined; it is found that the dendrite grain morphology can be modified because of dispersed refractory inclusions inoculation in the weld pool. Influences of inoculated inclusions on dendrites grain size are also discussed. An increase in the dendrite size has been found to increases content of toughness ferrite structure in weld met
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Zhang, Jing, Zhou Yi Pang, Chi Chi Sun, Ning Liu, and Hong Mei Chen. "Effect of Strontium Modification on the Morphology of Primary Si in Hypereutectic Al-Si Alloys." Materials Science Forum 993 (May 2020): 12–21. http://dx.doi.org/10.4028/www.scientific.net/msf.993.12.

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In the present study, hypereutectic Al-Si alloys were modified by strontium and the effect of the strontium content and holding time on the morphology of primary Si was investigated. Primary Si is modified to imperfect octahedron with primary dendrites or secondary dendrites when the amount of Sr exceeds 0.04wt.%. With extending the holding time, there is no significant difference with the morphology of primary Si. However, the size of primary Si decreases remarkably when the holding time prolongs to 120min. Further analysis reveals that the Sr content has a considerable impact on the morpholo
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Maniara, Rafal, Leszek Adam Dobrzański, Jerry Sokolowski, Wojciech Kasprzak, and Witold T. Kierkus. "Influence of Cooling Rate on the Size of the Precipitates and Thermal Characteristic of Al-Si Cast Alloys." Advanced Materials Research 15-17 (February 2006): 59–64. http://dx.doi.org/10.4028/www.scientific.net/amr.15-17.59.

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In this work effect of cooling rate on the size of the grains, SDAS, β phases and thermal characteristic results of Al-Si cast alloys have been described. The solidification process was studied using the cooling and crystallization curve at cooling rate ranging from 0,1 °Cs-1 up to 1 °Cs-1. The main observation made from this work was that when cooling rate is increased the aluminum dendrites nucleation temperature and solid fraction at the dendrite coherency point increases, which implies that mass feeding is extended. In addition to that, it was observed that solidus temperature and size of
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4

Chen, Zhong Wei, Hai Fang Zhang, and Jiang Chao Zhao. "Electron Back Scattering Diffraction Analysis of A357 Alloy Modified by Sr." Advanced Materials Research 160-162 (November 2010): 831–35. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.831.

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Microstructure of A357 alloy modified by Sr has been investigated by the Electron Back Scattering Diffraction (EBSD) mapping technique using a Field Emission Gun Scanning Electron Microscopy (FEG-SEM). An appropriate sample preparation technique by ion milling was applied to obtain a sufficiently smooth surface for EBSD mapping. Results show that the eutectic morphology in microstructure of A357 alloy modified by Sr was changed to fine fibrous, and the grain size was refined. By comparing the orientation of the aluminum in the eutectic to that of the primary aluminum dendrites, the nucleation
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Promakhov, Vladimir, Marina Khmeleva, Ilya Zhukov, Vladimir Platov, Anton Khrustalyov, and Alexander Vorozhtsov. "Influence of Vibration Treatment and Modification of A356 Aluminum Alloy on Its Structure and Mechanical Properties." Metals 9, no. 1 (2019): 87. http://dx.doi.org/10.3390/met9010087.

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A series of casting experiments was conducted with A356 aluminum alloys by applying vibration treatment and using Al-TiB2 composite master alloys. The main vibration effects include the promotion of nucleation and a reduction in as-cast grain size. Using composite master alloys with titanium diboride microparticles allows further reduction in the average grain size to 140 µm. The reasons for this behavior are discussed in terms of the complex effect on the melt, considering the destruction of dendrites, and the presence of additional crystallization centers. Tensile tests were performed on the
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Liu, Niu Can, Guang Sheng Kang, and Zhong Xia Liu. "Study on Microstructure and Impact Toughness of In Situ Mg2Si Particle Reinforced Al-Si Matrix Composites." Advanced Materials Research 557-559 (July 2012): 215–18. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.215.

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The microstructure and impact toughness of in-situ Mg2Si/Al-Si composites were studied in the different content of Sb. The results show that Sb can improve the microstructure and impact toughness of Mg2Si/Al-Si composites. When the content of Sb is 0.4%, the morphology of primary Mg2Si changes from dendrites to fine particles, the average size of Mg2Si particles is refined from 52μm to 25μm, and the impact toughness of the composites increases from 6.3572J/cm2 to 11.4394J/cm2. The improvement of impact toughness can be attributed to the fine-grain strengthening. However, excessive Sb is disadv
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Yang, Xiong, Shu Sen Wu, Shu Lin Lü, Liang Yan Hao, and Xiao Gang Fang. "Modification of LPSO Structure in Mg-Ni-Y Alloy with Strontium." Materials Science Forum 941 (December 2018): 869–74. http://dx.doi.org/10.4028/www.scientific.net/msf.941.869.

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Effects of Sr levels on microstructure of the LPSO structure-containing Mg98.5-xNi0.5Y1.0Srx(x=0, 0.05, 0.10, 0.20 at.%) alloy were studied by SEM/EDS and XRD. Without Sr addition, the Mg98.5Ni0.5Y1.0alloy consists of α-Mg and LPSO structure and the block LPSO structure is distributed along the grain boundary. After adding 0.05 at.% Sr element into Mg98.5Ni0.5Y1.0alloy, the amount of dendrites decreased. With the increase of Sr content, the size of α-Mg grains decreases firstly and then increases. Meanwhile, the LPSO structure is refined. The addition of Sr element also results in the obvious
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8

Davoisne, Carine, Neelam Yadav, and Mathieu Morcrette. "Failure Modes in Sulfide-Based All Solid-State Batteries (ASSB) Investigated By Operando SEM." ECS Meeting Abstracts MA2023-02, no. 3 (2023): 474. http://dx.doi.org/10.1149/ma2023-023474mtgabs.

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Studies on solid state batteries (ASSB) which began back in 190’s has seen a tremendous growing interest for multiple reasons such as the safety and the ability to use the metallic anodes for enhancing the gravimetric energy density. However, it exists different issues linked with poor performance of the batteries, which could be the results of interfacial challenges such as poor ion transport, dendrite formation, electrochemical degradation and chemo-mechanical degradation[1]. Among the potential parameters impacting the cycling process, the influence of the particle size of solid electrolyte
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Tiedje, Niels Skat, Jesper Henri Hattel, John A. Taylor, and Mark A. Easton. "Modelling Eutectic Growth in Unmodified and Modified Near-Eutectic Al-Si Alloy." Materials Science Forum 765 (July 2013): 160–64. http://dx.doi.org/10.4028/www.scientific.net/msf.765.160.

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A numerical model that describes solidification of primary aluminium grains and nucleation and growth of eutectic cells is used to analyse the solidification of an Al-12.5wt% Si alloy. Nucleation of eutectic cells is modelled using an Oldfield-type nucleation model where the number of nuclei in the melt is determined by the amount of active nuclei and the local undercooling from the surface to the centre of a plate casting. Eutectic grains are modelled as spheres growing between the dendrites. The growth velocity of the eutectic cells is a function of undercooling. Experimentally determined gr
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10

Ma, Dou Qin, Jing Pei Xie, and Wen Yan Wang. "Effect of Modification on Mechanical Behavior of ZA303 under High Temperature." Materials Science Forum 704-705 (December 2011): 1079–82. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.1079.

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In this paper , by SEM、EDS、XRD and Shimadzu AG-I250KN precision universal testing machine , the metallurgical structure, fracture appearance, the mechanical properties of the ZA303 under high temperature were systematically studied .The results shows that :The microstructure of ZA303 at room temperature are : α phase + (α＋η) eutectoid + ε phase + η phase. After adding modifying elements B、Ti in ZA303：the microstructure of the alloy is from gross dendrites to uniform equiaxed grains , the quantity, morphology and distribution of the (α + η) have greatly change: the quantity of (α + η) is less,
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Book chapters on the topic "Dendrites size modification"

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"The Effects of Microstructure on Properties." In Aluminum Alloy Castings. ASM International, 2004. http://dx.doi.org/10.31399/asm.tb.aacppa.t51140039.

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Abstract In castings, microstructural features are products of metal chemistry and solidification conditions. The microstructural features, excluding defects, that most strongly affect the mechanical properties or aluminum castings are size, form, and distribution of intermetallic phases; dendrite arm spacing; grain size and shape; and eutectic modification and primary phase refinement. This chapter discusses the effects of these microstructural features on properties and methods for controlling them. The chapter concludes with a detailed examination of the refinement of hypereutectic aluminum
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Imaoka, T., and K. Yamamoto. "Dendrimer Metal Complexes." In Functional Macromolecular Complexes. Royal Society of Chemistry, 2024. http://dx.doi.org/10.1039/9781837675142-00129.

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This chapter discusses the advancements in the field of macromolecular metal complexes achieved through the synthesis of dendrimers—a class of polymers with a defined structure and no molecular weight distribution. Unlike common linear polymers that introduce structural uncertainty in metal complexes, dendrimers offer precise and predictable architectures that facilitate the creation of uniform metal complexes. Dendrimers are highly branched, tree-like polymers, introduced by Tomalia in 1985, that allow for the assembly of precise metal complexes due to their monodispersity and regularity. Pol
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3

Şenel, Behiye, and Gülay Büyükköroğlu. "Nanocarriers for Vaccine and Gene Delivery Application." In Multifunctional Nanocarriers for Contemporary Healthcare Applications. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-4781-5.ch014.

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Nanocarriers with various compositions and biological properties are frequently used systems for in-vitro/in-vivo vaccination and gene transfer. In recent years, developments in nanotechnology have focused on the design and synthesis of nanocarriers that have new properties and can be modified for gene and vaccine delivery. In the favorable results obtained from in-vivo studies performed, they increase interest in these developments and pave the way for their therapeutic use. Nanocarriers have become increasingly important because they can stabilize vaccine antigens and serve as adjuvants, wit
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Biswajit Sarma, Dr, Dr Anup Malakar, and Dr Kajal Dutta. "POLYMERIC NANOPARTICLES FOR TARGETED DRUG DELIVERY." In Futuristic Trends in Chemical Material Sciences & Nano Technology Volume 3 Book 21. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3becs21p6ch2.

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Polymeric nanoparticles are found to have high potential for drug delivery for the treatment of various diseases. Polymeric materials are suitable for drug delivery because of their high possibilities of surface modifications. Polymeric micelles, dendrimers, and vesicles etc. are used for polymeric drug delivery. Polymeric nanoparticles (NPs) have attracted considerable interest over recent years due to their properties resulting from their small size. Advantages of polymeric NPs as drug carriers include their potential use for controlled release, the ability to protect drug and other molecule
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Tong, Wenhui, Bowei Sun, Qingqi Xu, Yunyi Liu, Jie Wang, and Xiang Li. "The Microstructure and Property Laser Cladding the Co-Based Alloy/TiC Coated with Co." In Advances in Transdisciplinary Engineering. IOS Press, 2023. http://dx.doi.org/10.3233/atde230456.

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The hard phase added into the laser-cladding layer will be melted a lot with its size reducing or even disappearance because of rapidly heating of the laser beam with high power density during laser cladding, resulting in the properties of the laser cladding layer decreased. In order to regulate the hard phase size in the laser cladding layer, the surface modification of titanium carbide (TiC) by chemically clad cobalt (Co) was used to improve the expected performance after laser cladding. The mixing powder of Co-based alloy with the TiC powder of 40–60 μm, which the ratios among the Co-based
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Conference papers on the topic "Dendrites size modification"

1

Yao, Zhehe, Yanbin Nie, Qunli Zhang, Xiaowen Yu, Xijiang Lu, and Jianhua Yao. "Effects of multidimensional vibration on laser cladding of SS316L alloy." In ICALEO 2018: 37th International Congress on Applications of Lasers & Electro-Optics. Laser Institute of AmericaLIA, 2018. https://doi.org/10.2351/7.0004059.

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As a widely-used approach for surface modification, laser cladding plays a significant role in aerospace, turbine and other fields. However, the defects usually existing in laser cladding parts, such as pores, cracks, tensile residual stress, significantly affect the performance and the application of the cladding parts. In this study, SS316L alloy layer was fabricated on 45 steel substrate using laser cladding process assisted by multidimensional vibration. By changing the vibration direction, the microstructures and the properties of the coating and the bonding interface with various vibrati
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