Results 11 to 20 of about 128,560 (335)
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
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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
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Determination of the degree of grain refinement in irradiated U-Mo fuels [PDF]
Heliyon, 2018 A simple, repeatable method for determination of the degree of grain refinement in irradiated Uranium-Molybdenum fuels has been developed. This method involves mechanical potting and polishing of samples along with examination using a scanning electron ...
Andrew M. Casella +3 more
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Journal of Magnesium and Alloys, 2021 Ultrasonic treatment (UST) applied during the solidification of pure Mg, eutectic (Mg – Zn) and peritectic (Mg – Zr) alloys was investigated in order to explore the grain refinement mechanisms.
Nagasivamuni Balasubramani +4 more
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Grain Refinement of Aluminum and Aluminum Alloys by Sc and Zr
Metals, 2023 Rare earth elements and transition elements are widely used in aluminum alloys, magnesium alloys and copper alloys due to their unique microalloying effects.
Zhiguo Lei +4 more
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Recent Advances in the Grain Refinement Effects of Zr on Mg Alloys: A Review
Metals, 2022 As the lightest structural materials, Mg alloys show great effectiveness at energy saving and emission reduction when applied in the automotive and aerospace fields.
Ming Sun +5 more
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Materials & Design, 2022 Grain refinement plays a central role in powder bed fusion (PBF) additive manufacturing by preventing hot cracking and thus enabling the development of high-strength alloys.
Freddy Leijon +5 more
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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
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Grain Refinement of Deoxidized Copper [PDF]
Metallurgical and Materials Transactions A, 2016 Abstract This study reports the current status of grain refinement of copper accompanied in particular by a critical appraisal of grain refinement of phosphorus-deoxidized, high residual P (DHP) copper microalloyed with 150 ppm Ag. Some deviations exist in terms of the growth restriction factor (Q) framework, on the basis of empirical ...
Balart, MJ, Patel, JB, Gao, F, Fan, Z
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Journal of Materials Research and Technology, 2021 Grain refinement is an important technique to improve the mechanical properties of metal materials. In this study, a novel technique (in-situ oxidation process) was proposed.
Hengbin Liao +4 more
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