On the heterogeneous nucleation pressure for hydrogen pores in liquid aluminium

IF 1.3 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

International Journal of Cast Metals Research Pub Date : 2020-07-21 DOI:10.1080/13640461.2020.1797335

M. Tiryakioğlu

引用次数: 9

Abstract

ABSTRACT Heterogeneous nucleation based on the spherical cap model has been used in this study to evaluate nucleation pressure and the number of hydrogen atoms necessary for nucleation. Calculations have shown that the minimum heterogeneous nucleation pressure that can be achieved is in the order of 1 GPa, which is four orders of magnitude larger than the values assumed in the literature. Implications of the results are discussed.

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铝液中氢孔的非均匀形核压力

摘要基于球帽模型的非均匀成核已被用于评估成核压力和成核所需的氢原子数。计算表明，可以实现的最小非均匀成核压力约为1GPa，比文献中假设的值大四个数量级。讨论了结果的含义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Cast Metals Research 工程技术-冶金工程

CiteScore

2.70

自引率

7.10%

发文量

审稿时长

7.5 months

期刊介绍： The International Journal of Cast Metals Research is devoted to the dissemination of peer reviewed information on the science and engineering of cast metals, solidification and casting processes. Assured production of high integrity castings requires an integrated approach that optimises casting, mould and gating design; mould materials and binders; alloy composition and microstructure; metal melting, modification and handling; dimensional control; and finishing and post-treatment of the casting. The Journal reports advances in both the fundamental science and materials and production engineering contributing to the successful manufacture of fit for purpose castings.