Increased electrical conductivity in fine-grained (Zr,Hf)NiSn based thermoelectric materials with nanoscale precipitates [PDF]
, 2012 Grain refinement has been conducted to reduce the thermal conductivity and improve the thermoelectric performance of the (Zr,Hf)NiSn based half-Heusler alloys. Nanoscale in situ precipitates were found embedded in the matrix with submicron grains.
Fu, Chen-Guang +5 more
core +1 more source
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 +1 more source
Influence of severe plastic deformation on the precipitation hardening of a FeSiTi steel
, 2012 The combined strengthening effects of grain refinement and high precipitated volume fraction (~6at.%) on the mechanical properties of FeSiTi alloy subjected to SPD processing prior to aging treatment were investigated by atom probe tomography and ...
A Cerri +37 more
core +3 more sources
An epitaxial model for heterogeneous nucleation on potent substrates [PDF]
, 2012 © The Minerals, Metals & Materials Society and ASM International 2012In this article, we present an epitaxial model for heterogeneous nucleation on potent substrates.
A. Hashibon +52 more
core +1 more source
Grain refinement of AZ91D alloy by intensive melt shearing and its persistence after remelting and isothermal holding [PDF]
China Foundry, 2013 Intensive melt shearing has a significant grain refining effect on some light alloys. However, the persistence of the grain refining effect during isothermal holding and remelting is still unclear, although it is very important for the practical ...
Zuo Yubo, Fan Zhongyun, Cui Jianzhong
doaj
Effects of grain refinement on cast structure and tensile properties of superalloy K4169 at high pouring temperature [PDF]
China Foundry, 2016 In order to improve the filling ability of large complex thin wall castings, the pouring temperature should be increased, but this will result in the grain coarsening. To overcome this problem, two kinds of grain refiners of Co-Fe-Nb and Cr-Fe-Nb ternary
Zi-qi Jie, Jun Zhang, Tai-wen Huang
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Decrypting cancer's spatial code: from single cells to tissue niches
Molecular Oncology, EarlyView.Spatial transcriptomics maps gene activity across tissues, offering powerful insights into how cancer cells are organised, switch states and interact with their surroundings. This review outlines emerging computational, artificial intelligence (AI) and geospatial approaches to define cell states, uncover tumour niches and integrate spatial data with ...
Cenk Celik +4 more
wiley +1 more source
Zjemňování zrna protlačované hořčíkové slitiny AZ31 procesem Ecap [PDF]
, 2017 Extruded Mg – 3%Al – 1% Zn (AZ31) magnesium alloy was subjected to ECAP (Equal Channel Angular Pressing) processing at 523 K (250 °C). At the processing temperature of 523 K, fine grains with the average grain size of 2 – 3 μm are formed as a result of ...
Hilšer, Ondřej +3 more
core +1 more source
Designing grain refinement passes for multi-direction forging: A phase-field crystal study
Journal of Materials Research and Technology, 2023 Multi-directional forging is an effective plastic deformation method for polycrystalline grain refinement, and the degree of refinement is closely related to the number of forging passes. However, the relationship between the degree of refinement and the
Zhuo Song +5 more
doaj
Taguchi Approach for Optimization of Parameters that Effect Grain Size of Cast A357 Alloy
Archives of Foundry Engineering, 2017 Grain refining and modification are common foundry practice for improving properties of cast Al-Si alloys. In general, these types of treatments provide better fluidity, decreased porosity, higher yield strength and ductility. However, in practice, there
Çolak M., Dışpınar D.
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