{"title":"AISI 1045 钢超高速硼化和相均化的动力学建模","authors":"Brahim Boumaali, Mourad Keddam","doi":"10.1134/S2070205124701624","DOIUrl":null,"url":null,"abstract":"<p>In this work, the Dybkov model was applied to simulate the boronizing kinetics of AISI 1045 steel and the subsequent phase homogenization (PH) by considering two fitting parameters and boride incubation times to reproduce the experimental thicknesses of FeB and (FeB + Fe<sub>2</sub>B) layers. The bilayer (FeB/Fe<sub>2</sub>B) was generated on AISI 1045 steel using the ultra fast boriding (UFB) process in the range of 1123 to 1223 K for 0.25–0.75 h. New expressions of analytical solutions of Dybkov model were then developed. As a main result, the boron activation energies in FeB and Fe<sub>2</sub>B were determined as 145.27 and 133.13 kJ mol<sup>–1</sup> for FeB and Fe<sub>2</sub>B layers, respectively. The relations describing the evolution of layers thicknesses during the phase homogenization (PH) were derived. They were used to estimate the holding time required for dissolving completely the FeB layer.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 2","pages":"282 - 290"},"PeriodicalIF":1.1000,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Kinetic Modeling of Ultrafast Boriding of AISI 1045 Steel and Phase Homogenization\",\"authors\":\"Brahim Boumaali, Mourad Keddam\",\"doi\":\"10.1134/S2070205124701624\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this work, the Dybkov model was applied to simulate the boronizing kinetics of AISI 1045 steel and the subsequent phase homogenization (PH) by considering two fitting parameters and boride incubation times to reproduce the experimental thicknesses of FeB and (FeB + Fe<sub>2</sub>B) layers. The bilayer (FeB/Fe<sub>2</sub>B) was generated on AISI 1045 steel using the ultra fast boriding (UFB) process in the range of 1123 to 1223 K for 0.25–0.75 h. New expressions of analytical solutions of Dybkov model were then developed. As a main result, the boron activation energies in FeB and Fe<sub>2</sub>B were determined as 145.27 and 133.13 kJ mol<sup>–1</sup> for FeB and Fe<sub>2</sub>B layers, respectively. The relations describing the evolution of layers thicknesses during the phase homogenization (PH) were derived. They were used to estimate the holding time required for dissolving completely the FeB layer.</p>\",\"PeriodicalId\":745,\"journal\":{\"name\":\"Protection of Metals and Physical Chemistry of Surfaces\",\"volume\":\"60 2\",\"pages\":\"282 - 290\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2024-10-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Protection of Metals and Physical Chemistry of Surfaces\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S2070205124701624\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Protection of Metals and Physical Chemistry of Surfaces","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S2070205124701624","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: 0
摘要
本研究采用 Dybkov 模型模拟了 AISI 1045 钢的硼化动力学和随后的相均化 (PH)，通过考虑两个拟合参数和硼化物孕育时间来再现实验中的 FeB 和（FeB + Fe2B）层厚度。双层（FeB/Fe2B）是在 1123 至 1223 K 的范围内，用超快硼化（UFB）工艺在 AISI 1045 钢上生成的，持续时间为 0.25-0.75 h。主要结果是确定了 FeB 和 Fe2B 层中硼的活化能分别为 145.27 和 133.13 kJ mol-1。得出了描述相均化（PH）过程中层厚度演变的关系式。它们被用来估算完全溶解 FeB 层所需的保温时间。
Kinetic Modeling of Ultrafast Boriding of AISI 1045 Steel and Phase Homogenization
In this work, the Dybkov model was applied to simulate the boronizing kinetics of AISI 1045 steel and the subsequent phase homogenization (PH) by considering two fitting parameters and boride incubation times to reproduce the experimental thicknesses of FeB and (FeB + Fe2B) layers. The bilayer (FeB/Fe2B) was generated on AISI 1045 steel using the ultra fast boriding (UFB) process in the range of 1123 to 1223 K for 0.25–0.75 h. New expressions of analytical solutions of Dybkov model were then developed. As a main result, the boron activation energies in FeB and Fe2B were determined as 145.27 and 133.13 kJ mol–1 for FeB and Fe2B layers, respectively. The relations describing the evolution of layers thicknesses during the phase homogenization (PH) were derived. They were used to estimate the holding time required for dissolving completely the FeB layer.
期刊介绍：
Protection of Metals and Physical Chemistry of Surfaces is an international peer reviewed journal that publishes articles covering all aspects of the physical chemistry of materials and interfaces in various environments. The journal covers all related problems of modern physical chemistry and materials science, including: physicochemical processes at interfaces; adsorption phenomena; complexing from molecular and supramolecular structures at the interfaces to new substances, materials and coatings; nanoscale and nanostructured materials and coatings, composed and dispersed materials; physicochemical problems of corrosion, degradation and protection; investigation methods for surface and interface systems, processes, structures, materials and coatings. No principe restrictions exist related systems, types of processes, methods of control and study. The journal welcomes conceptual, theoretical, experimental, methodological, instrumental, environmental, and all other possible studies.
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