Results 41 to 50 of about 811,199 (195)
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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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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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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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 superalloys K3 and K4169 by the addition of refiners [PDF]
Science and Technology of Advanced Materials, 2001 Grain refinement of superalloys K3 and K4169 is achieved by adding refiners A, B, or mixed refiner (A+B) into the melt of alloy K3, and refiner C into the melt of alloy K4169 under different casting parameters. Results indicate that the mixed refiner (A+B) produces the best refining effect for alloy K3.
Yuhua Xiong +4 more
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Journal of Materials Research and TechnologyIon implantation can strengthen metal surfaces by inducing grain refinement. However, the refinement mechanism remains unclear, which affects the precise application of the process.
Yelin Zeng +5 more
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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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The Effect of Grain Refinement on the Castability of Magnesium-Aluminium Alloys [PDF]
, 2007 Rapidly increasing fuel prices and global pressures to reduce the harmful effects of vehicle emissions are forcing vehicle manufacturers to look at alternative materials to reduce the mass of the vehicles they produce.
Timothy Kevin Loughnane +1 more
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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
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Review on Grain Refinement of Metallic Materials to Regulate Cellular Behavior
Metals, 2022 Metallic materials have been widely used as orthopedic implants in clinics for their good mechanical, physical, and chemical properties, but their slow osseointegration rate is still one of the main issues causing implantation failure.
Yingjian Gu, Run Huang, Yufei Hao
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