{"title":"Polymer Model of a Close-Packed Metallic Melt","authors":"A. L. Talis, V. S. Kraposhin","doi":"10.1007/s11041-024-00995-6","DOIUrl":null,"url":null,"abstract":"<p>A structural model of metallic melts is suggested on the basis of the structures of all modifications of Mn. The model is based on spirals of tetrablocks, i.e., unions over faces of four regular tetrahedrons. The helices composed of tetrablocks have a high density and a non-translational long-range ordering, which explains the higher experimental values of the melt density as compared to the random packing model and the blurring of the diffraction pattern of the melt. When the melt crystallizes into one of the Mn modifications, such a spiral is inherited in the form of its periodic approximant. The model makes it possible to describe adequately the changes in the structure-sensitive properties of metals during heat treatment.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"65 11-12","pages":"722 - 727"},"PeriodicalIF":0.6000,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metal Science and Heat Treatment","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11041-024-00995-6","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
A structural model of metallic melts is suggested on the basis of the structures of all modifications of Mn. The model is based on spirals of tetrablocks, i.e., unions over faces of four regular tetrahedrons. The helices composed of tetrablocks have a high density and a non-translational long-range ordering, which explains the higher experimental values of the melt density as compared to the random packing model and the blurring of the diffraction pattern of the melt. When the melt crystallizes into one of the Mn modifications, such a spiral is inherited in the form of its periodic approximant. The model makes it possible to describe adequately the changes in the structure-sensitive properties of metals during heat treatment.
期刊介绍：
Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering.
Topics covered include:
New structural, high temperature, tool and precision steels;
Cold-resistant, corrosion-resistant and radiation-resistant steels;
Steels with rapid decline of induced properties;
Alloys with shape memory effect;
Bulk-amorphyzable metal alloys;
Microcrystalline alloys;
Nano materials and foam materials for medical use.
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