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Study of Susceptibility to Tearing of AlSi5Cu2Mg Alloy with Addition of Zr and Ti 添加 Zr 和 Ti 后 AlSi5Cu2Mg 合金的易撕裂性研究
Archives of Foundry Engineering Pub Date : 2024-03-18 DOI: 10.24425/afe.2024.149257
M. Matejka, D. Bolibruchová, E. Kantoríková
{"title":"Study of Susceptibility to Tearing of AlSi5Cu2Mg Alloy with Addition of Zr and Ti","authors":"M. Matejka, D. Bolibruchová, E. Kantoríková","doi":"10.24425/afe.2024.149257","DOIUrl":"https://doi.org/10.24425/afe.2024.149257","url":null,"abstract":"The current trend of continuous improvement of various components constantly pushes the development of new materials forward. The basic goal of research into new and better materials is to improve their properties compared to the original material. One of the essential properties of the newly developed aluminum alloys is their resistance to the formation of tearing. Tears appear during the solidification of the casting and break the integrity due to tension arising while cooling. Several factors influence the susceptibility to tearing, but they can be minimized and reduce the chance of their occurrence. As part of the experiment, the AlSi5Cu2Mg alloy was evaluated in four material variants, without additives (in the reference state), with the addition of transition elements Zr, Ti and their combination Zr + Ti. Susceptibility to the formation of teras was assessed using a qualitative method supplemented by microscopic analysis of the tear profile and determination of the dendritic coherence temperature. The evaluation shows that the addition of Zr increased the susceptibility to tear formation. On the contrary, the addition of Ti had a positive effect and reduced the susceptibility to the formation of tears. The effect of the addition of Zr and Ti in the AlSi5Cu2Mg alloy showed a similar values as without the addition of alloys (reference condition). Microstructural analysis of the tear profile pointed to the negative influence of phases rich in Zr. The subsequent evaluation of the dendritic coherence temperature of individual AlSi5Cu2Mg alloys did not show a correlation with the results of a quantitative evaluation of susceptibility to tears.","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":"224 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140233663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Swirl Angle on Interaction between Swirl Oxygen Lance Jet and Melt Pool 漩涡角度对漩涡氧枪射流和熔池之间相互作用的影响
Archives of Foundry Engineering Pub Date : 2024-03-18 DOI: 10.24425/afe.2024.149251
Haoran Ma, Guangqiang Liu, Chengcheng Xu, Kun Liu, P. Han
{"title":"Effect of Swirl Angle on Interaction between Swirl Oxygen Lance Jet and Melt Pool","authors":"Haoran Ma, Guangqiang Liu, Chengcheng Xu, Kun Liu, P. Han","doi":"10.24425/afe.2024.149251","DOIUrl":"https://doi.org/10.24425/afe.2024.149251","url":null,"abstract":"In order to clarify the action law of the swirl oxygen lance jet on the melt pool of the converter and to determine the optimal swirl angle of the swirl oxygen lance for the 120t converter, this study establishes the gas-liquid two-phase flow model of the oxygen lance with different swirl angles based on the realizable k-ε model and the VOF multiphase flow model. The gas-liquid interface behavior during the interaction between the jet and the molten pool was analyzed, and the flow pattern of molten steel in the molten pool was mainly investigated. The results show that compared with traditional oxygen lance, the rotating oxygen lance jet enhances the stirring of the melt pool and intensifies the fluctuation of the melt pool liquid level. The depth of the impact cavity decreases with the increase of the swirl angle, but the diameter of the impact cavity increases with the increase of the swirl angle. When the jet with a swirl angle of 10 ° impacts the surface of the melt pool, the turbulence energy obtained by the molten steel is the highest, the average flow velocity inside the melt pool is the highest, and the molten steel is stirred more thoroughly, achieving better melting effects.","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":"161 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140233975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Use of 3D Printed Sand Molds and Cores in the Castings Production 在铸件生产中使用 3D 打印砂模和型芯
Archives of Foundry Engineering Pub Date : 2024-03-01 DOI: 10.24425/afe.2024.149249
Dawid Halejcio, K. Major-Gabryś
{"title":"The Use of 3D Printed Sand Molds and Cores in the Castings Production","authors":"Dawid Halejcio, K. Major-Gabryś","doi":"10.24425/afe.2024.149249","DOIUrl":"https://doi.org/10.24425/afe.2024.149249","url":null,"abstract":"As a part of this work, an analysis of the current state of knowledge regarding the use of additive technology - binder jetting in the production of castings was made. The binder jetting (so-called 3D printing) has become the leading method of sand mold and core production. Within this paper types of molding and core sands with organic and inorganic binders that are and can be used in technology were analyzed. The need to carry out works aimed at developing pro-ecological molding / core sands with inorganic binders and organic binders with reduced harmfulness to the environment dedicated to binder jetting technology was noticed. The influence of technology parameters on the properties of molding / core sands and the properties of cast components was analyzed. It was shown that thanks to the unlimited shapes of the systems obtained with the use of additive technologies, it is possible to influence the rate of heat dissipation through the mold, which positively effects the process of solidification and crystallization of the castings.","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":"267 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140282080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Use of Used Graphite Electrodes as Metal Matrix Composites Reinforcement 将废旧石墨电极用作金属基复合材料增强材料
Archives of Foundry Engineering Pub Date : 2024-02-14 DOI: 10.24425/afe.2024.149247
M. Łągiewka
{"title":"Use of Used Graphite Electrodes as Metal Matrix Composites Reinforcement","authors":"M. Łągiewka","doi":"10.24425/afe.2024.149247","DOIUrl":"https://doi.org/10.24425/afe.2024.149247","url":null,"abstract":"The work presents the effect of the addition of graphite from recycled graphite electrodes on the mechanical properties of metal matrix composites (MMC) based on the AlMg10 alloy. A composite based on the AlMg10 alloy reinforced with natural graphite particles was also tested. Further, tests of the mechanical properties of the AlMg10 alloy were performed for comparative purposes. Composites with a particle content of 5, 10 and 15 percent by volume were produced by adding introduction of particles into the liquid matrix while mechanically mixing molten alloy. The composite suspensions were gravitationally cast into metal molds. Samples for the Rm, R0.2, A and E tests were made from the prepared castings. Photos of the microstructures of the materials were also taken. The research shows that the addition of graphite to the matrix alloy causes minor changes in tensile strength (Rm) and yield strength (R02), regardless of the type of graphite used. The results of the relative elongation tests showed that the introduction of graphite particles into the matrix alloy had an adverse effect on the elongation values in the case of each of the tested composites. The introduction of graphite particles into the AlMg10 alloy significantly increased the Young’s modulus value, both in the case of composites with flake graphite (natural) and graphite from ground graphite electrodes.","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":"29 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of The Effect of Mechanical Vibration Applied During Solidification on The Microstructure and Properties of Aluminum 356 Alloy 凝固过程中的机械振动对铝 356 合金微观结构和性能影响的研究
Archives of Foundry Engineering Pub Date : 2024-02-14 DOI: 10.24425/afe.2024.149248
Taha Süreyya Özgü, R. Çalın, Naci Arda Tanış
{"title":"Investigation of The Effect of Mechanical Vibration Applied During Solidification on The Microstructure and Properties of Aluminum 356 Alloy","authors":"Taha Süreyya Özgü, R. Çalın, Naci Arda Tanış","doi":"10.24425/afe.2024.149248","DOIUrl":"https://doi.org/10.24425/afe.2024.149248","url":null,"abstract":"Manufacturing by casting method in aluminum and its alloys is preferred by different industries today. It may be necessary to improve the mechanical properties of the materials according to different industries and different strength requirements. The mechanical properties of metal alloys are directly related to the microstructure grain sizes. Therefore, many grain reduction methods are used during production or heat treatment. In this study, A356 alloys were molded into molds at 750 °C and exposed to vibration frequency at 0, 8.33, 16.66, 25, and 33.33 Hz during solidification. Optical microscopes images were analyzed in image analysis programs to measure the grain sizes of the samples that solidified after solidification. In addition, microhardness tests of samples were carried out to examine the effect of vibration and grain reduction on mechanical behavior. In the analyzes made, it was determined that the grain sizes decreased from 54.984 to 26.958 μm and the hardness values increased from 60.48 to 126.94 HV with increasing vibration frequency.","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":"678 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139839194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of The Effect of Mechanical Vibration Applied During Solidification on The Microstructure and Properties of Aluminum 356 Alloy 凝固过程中的机械振动对铝 356 合金微观结构和性能影响的研究
Archives of Foundry Engineering Pub Date : 2024-02-14 DOI: 10.24425/afe.2024.149248
Taha Süreyya Özgü, R. Çalın, Naci Arda Tanış
{"title":"Investigation of The Effect of Mechanical Vibration Applied During Solidification on The Microstructure and Properties of Aluminum 356 Alloy","authors":"Taha Süreyya Özgü, R. Çalın, Naci Arda Tanış","doi":"10.24425/afe.2024.149248","DOIUrl":"https://doi.org/10.24425/afe.2024.149248","url":null,"abstract":"Manufacturing by casting method in aluminum and its alloys is preferred by different industries today. It may be necessary to improve the mechanical properties of the materials according to different industries and different strength requirements. The mechanical properties of metal alloys are directly related to the microstructure grain sizes. Therefore, many grain reduction methods are used during production or heat treatment. In this study, A356 alloys were molded into molds at 750 °C and exposed to vibration frequency at 0, 8.33, 16.66, 25, and 33.33 Hz during solidification. Optical microscopes images were analyzed in image analysis programs to measure the grain sizes of the samples that solidified after solidification. In addition, microhardness tests of samples were carried out to examine the effect of vibration and grain reduction on mechanical behavior. In the analyzes made, it was determined that the grain sizes decreased from 54.984 to 26.958 μm and the hardness values increased from 60.48 to 126.94 HV with increasing vibration frequency.","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":"60 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139779245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Use of Used Graphite Electrodes as Metal Matrix Composites Reinforcement 将废旧石墨电极用作金属基复合材料增强材料
Archives of Foundry Engineering Pub Date : 2024-02-14 DOI: 10.24425/afe.2024.149247
M. Łągiewka
{"title":"Use of Used Graphite Electrodes as Metal Matrix Composites Reinforcement","authors":"M. Łągiewka","doi":"10.24425/afe.2024.149247","DOIUrl":"https://doi.org/10.24425/afe.2024.149247","url":null,"abstract":"The work presents the effect of the addition of graphite from recycled graphite electrodes on the mechanical properties of metal matrix composites (MMC) based on the AlMg10 alloy. A composite based on the AlMg10 alloy reinforced with natural graphite particles was also tested. Further, tests of the mechanical properties of the AlMg10 alloy were performed for comparative purposes. Composites with a particle content of 5, 10 and 15 percent by volume were produced by adding introduction of particles into the liquid matrix while mechanically mixing molten alloy. The composite suspensions were gravitationally cast into metal molds. Samples for the Rm, R0.2, A and E tests were made from the prepared castings. Photos of the microstructures of the materials were also taken. The research shows that the addition of graphite to the matrix alloy causes minor changes in tensile strength (Rm) and yield strength (R02), regardless of the type of graphite used. The results of the relative elongation tests showed that the introduction of graphite particles into the matrix alloy had an adverse effect on the elongation values in the case of each of the tested composites. The introduction of graphite particles into the AlMg10 alloy significantly increased the Young’s modulus value, both in the case of composites with flake graphite (natural) and graphite from ground graphite electrodes.","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":"61 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139838181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effect of Work Hardening on the Structure and Hardness of Hadfield Steel 加工硬化对哈德菲尔德钢结构和硬度的影响
Archives of Foundry Engineering Pub Date : 2024-02-14 DOI: 10.24425/afe.2024.149246
D. Bańkowski, P. Młynarczyk, W. P. Depczyński, K. Bolanowski
{"title":"The Effect of Work Hardening on the Structure and Hardness of Hadfield Steel","authors":"D. Bańkowski, P. Młynarczyk, W. P. Depczyński, K. Bolanowski","doi":"10.24425/afe.2024.149246","DOIUrl":"https://doi.org/10.24425/afe.2024.149246","url":null,"abstract":"The article aims to characterize Hadfield steel by analyzing its chemical composition, mechanical properties, and microstructure. The study focused on the twinning-induced work hardening of the alloy, which led to an increase in its hardness. The experimental data show that the material hardness at the surface improved considerably after solution heat treatment and work hardening, reaching more than 750 HV. By contrast, the hardness of the material core in the supersaturated condition was about 225 HV. The chemical and phase compositions of the material at the surface were compared with those of the core. The microstructural analysis of the steel revealed characteristic decarburization of the surface layer after solution heat treatment. The article also describes the effects of heat treatment on the properties and microstructure of Hadfield steel. The volumetric (qualitative) analysis of the computed tomography (CT) data of Hadfield steel subjected to heavy dynamic loading helped detect internal flaws, assess the material quality, and potentially prevent the structural failure or damage of the element tested.","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":"30 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139777019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effect of Work Hardening on the Structure and Hardness of Hadfield Steel 加工硬化对哈德菲尔德钢结构和硬度的影响
Archives of Foundry Engineering Pub Date : 2024-02-14 DOI: 10.24425/afe.2024.149246
D. Bańkowski, P. Młynarczyk, W. P. Depczyński, K. Bolanowski
{"title":"The Effect of Work Hardening on the Structure and Hardness of Hadfield Steel","authors":"D. Bańkowski, P. Młynarczyk, W. P. Depczyński, K. Bolanowski","doi":"10.24425/afe.2024.149246","DOIUrl":"https://doi.org/10.24425/afe.2024.149246","url":null,"abstract":"The article aims to characterize Hadfield steel by analyzing its chemical composition, mechanical properties, and microstructure. The study focused on the twinning-induced work hardening of the alloy, which led to an increase in its hardness. The experimental data show that the material hardness at the surface improved considerably after solution heat treatment and work hardening, reaching more than 750 HV. By contrast, the hardness of the material core in the supersaturated condition was about 225 HV. The chemical and phase compositions of the material at the surface were compared with those of the core. The microstructural analysis of the steel revealed characteristic decarburization of the surface layer after solution heat treatment. The article also describes the effects of heat treatment on the properties and microstructure of Hadfield steel. The volumetric (qualitative) analysis of the computed tomography (CT) data of Hadfield steel subjected to heavy dynamic loading helped detect internal flaws, assess the material quality, and potentially prevent the structural failure or damage of the element tested.","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":"114 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139836579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
149245 149245
Archives of Foundry Engineering Pub Date : 2024-02-08 DOI: 10.24425/afe.2024.149245
{"title":"149245","authors":"","doi":"10.24425/afe.2024.149245","DOIUrl":"https://doi.org/10.24425/afe.2024.149245","url":null,"abstract":"","PeriodicalId":505283,"journal":{"name":"Archives of Foundry Engineering","volume":" 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139790884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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