{"title":"On the heterogeneous nucleation pressure for hydrogen pores in liquid aluminium","authors":"M. Tiryakioğlu","doi":"10.1080/13640461.2020.1797335","DOIUrl":null,"url":null,"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.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2020-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13640461.2020.1797335","citationCount":"9","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Cast Metals Research","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/13640461.2020.1797335","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
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.
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.
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