Results 31 to 40 of about 1,628,826 (288)
Grain refinement of primary silicon in hypereutectic Al-Si alloys by different P-containing compounds [PDF]
China Foundry, 2021 The grain refinement behavior of Si-3P, Si-25Mn-10P, and Al-10Si-2Fe-3P master alloys on hypereutectic Al-24Si alloy was studied. Microstructure analysis indicates that the P-containing compounds in the three master alloys are SiP, MnP, and AlP ...
Benson Kihono Njuguna +2 more
doaj +1 more source
Results in Physics, 2019 The excellent grain refinement effectiveness and good electrical conductivity is difficult to be simultaneously obtained due to the influence of both the grain boundary and excessive Ti in the usually used refiners, such as Al-5Ti-1B master alloy.
Xuexia Xu +9 more
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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
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Grain Refinement of Alloys in Fusion-Based Additive Manufacturing Processes
Metallurgical and Materials Transactions. A, 2020 One of the less desirable aspects of fusion-based additive manufacturing is the propensity for coarse columnar grain structures crossing build layers to form.
Duyao Zhang +9 more
semanticscholar +1 more source
EBSD study on magnetic field altering crystal texture and grain growth during laser-hybrid welding
Materials & Design, 2022 In this study, evolutions of austenite and ferrite microstructures and relevant variations of performances were analyzed during laser-arc welding 316L austenitic stainless steel with a magnetic field. For austenite grains, the magnetic field gave rise to
Chang Hu +5 more
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Grain refinement of Fe--Ti alloys fabricated by laser powder bed fusion
, 2021 Grain structure control is essential in metal additive manufacturing. It is used to avoid anisotropic mechanical properties, hot cracking and to increase the strength via the Hall-Petch effect.
H. Ikehata, D. Mayweg, E. Jägle
semanticscholar +1 more source
Thermomechanical Grain Refinement in AA6082-T6 Thin Plates under Bobbin Friction Stir Welding
Metals, 2018 Bobbin friction stir welding (BFSW), with its fully penetrated pin and double-sided shoulder, can provide high rates of heat generation. This produces solid-state thermo-mechanical grain refinement.
Abbas Tamadon +3 more
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Study on the grain refinement mechanism of the machined surface of Inconel 718
Journal of Materials Research and TechnologyIn machining processes, the high temperature and stress can lead to plastic deformations of the workpiece material. Thermomechanical loading has a significant impact on the microstructure of the machined surface, including grain deformation ...
Yu Qi +6 more
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New grain refinement method for aluminum cast alloys without adding grain refiner.
Journal of Advanced Science, 2001 Grain refiner has conventionally been added during the casting process of grain refinement, but it has recently become a recycling problem, which calls for the efforts for development of a new grain refinement method. In this paper, a technological breakthrough has been achieved, where grain refinement was successfully completed by applying ultrasonic ...
Yoshiaki OSAWA +2 more
openaire +2 more sources
Journal of Magnesium and Alloys, 2022 Fine grained ZN20 alloy was obtained by combining equal-channel angular pressing (ECAP) with extrusion. Microstructural observation showed an obvious grain refinement with an average grain size of 10 µm after ECAP.
Ming Gao, Ke Yang, Lili Tan, Zheng Ma
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