Matéria (Rio de Janeiro)最新文献_第5页

Evaluation of mechanical properties for stone mastic asphalt containing textile waste 含纺织废料石质沥青的力学性能评价

Matéria (Rio de Janeiro) Pub Date : 2023-06-16 DOI: 10.1590/1517-7076-rmat-2023-0092

J. Oner

{"title":"Evaluation of mechanical properties for stone mastic asphalt containing textile waste","authors":"J. Oner","doi":"10.1590/1517-7076-rmat-2023-0092","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2023-0092","url":null,"abstract":"Bitumen draining in stone mastic asphalt mixtures has become a potential problem. Due to the storage and laying temperatures as well as difficulties in providing the necessary compaction, the temperatures of the asphalt mix cannot be lowered to prevent or reduce drainage. In stone mastic asphalts, generally cellulose or mineral-based fibers are preferred to reduce draining down of bitumen. Conventional fibers commonly used in stone mastic asphalt increase pavement costs because they are expensive. The aim of this research is investigation of textile waste used to prevent bitumen drainage problem in stone mastic asphalt pavements instead of traditional fibers. Following the determination of the bitumen content, Marshall Stability tests, Schellenberg bitumen drainage test and Indirect Tensile Strength tests were conducted to evaluate the mechanical properties of the stone mastic asphalt mixtures in comparison to mixes containing textile waste. The results indicated that it is possible to produce stone mastic asphalt mixes with textile waste that exhibits similar mechanical properties mixes including cellulose fiber. Moreover, it was found that samples prepared with textile waste exhibits advantage in terms of cost compared to samples prepared with cellulose fiber.","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75007920","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

Estudo da eletrodeposição de óxido de titânio com adição de magnésio em substrato de titânio com corrente constante 在恒流钛基板上添加镁电沉积氧化钛的研究

Matéria (Rio de Janeiro) Pub Date : 2023-06-02 DOI: 10.1590/1517-7076-rmat-2023-0029

Guilherme Ribeiro Capelin, Milena Yumi Kasama Nakata, Jean Valdir Uchôa Teixeira, Adriana Alencar Santos, Paulo Noronha Lisboa Filho

{"title":"Estudo da eletrodeposição de óxido de titânio com adição de magnésio em substrato de titânio com corrente constante","authors":"Guilherme Ribeiro Capelin, Milena Yumi Kasama Nakata, Jean Valdir Uchôa Teixeira, Adriana Alencar Santos, Paulo Noronha Lisboa Filho","doi":"10.1590/1517-7076-rmat-2023-0029","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2023-0029","url":null,"abstract":"RESUMO Atualmente, o substrato de titânio é um dos mais importantes biomateriais metálicos com aplicação em ortopedia, odontologia, fixação de fraturas e artroplastia de joelho e quadril. Apesar de todas estas propriedades atrativas, sua inércia biológica e baixa capacidade bactericida acaba limitando sua osseointegração. Neste sentido, revestimentos de TiO2 e TiO2(MgO) são realizados para aprimorar as características do titânio, como a resistência à corrosão. Os objetivos deste estudo foram analisar a resistência à corrosão do óxido de titânio e óxido de titânio com adição de magnésio, topografias, morfologias e cristalinidade em um substrato de titânio através da eletrodeposição com corrente constante. As eletrodeposições foram realizadas em um sistema de três eletrodos, sendo o titânio eletrodo de trabalho, Ag/AgCl como eletrodo de referência e um contra eletrodo de platina em um potenciostato e foram utilizadas correntes constantes de 1,0 mA/cm2 para todos os processos. Foram utilizadas as caracterizações por microscopia eletrônica de varredura (MEV), microscopia de força atômica (MFA), microscopia confocal, difração de raios X (DRX) e polarização potenciodinâmica. As análises de topografia e morfologia indicaram uma alteração nas rugosidades (Ra) e todas demonstraram uma superfície uniforme. As análises de DRX indicaram apenas o titânio metálico, porém todas tiveram uma diferença no FWHM, indicando possíveis fases amorfas ou Mg intersticial, causando também uma variação na altura dos picos. Por fim, a polarização potenciodinâmica indicou que o revestimento com TiO2 houve uma melhora de 37,90% e o TiO2 com adição de magnésio houve uma perda de 13,43%. Portanto, os revestimentos causaram alterações nas rugosidades, morfologias, redes cristalinas e nas propriedades anticorrosivas, possibilitando assim a modulação das propriedades desejadas de acordo com o ambiente de oxidação utilizado.","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82754765","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

Estudo dos efeitos da adição de óxido de cálcio nas propriedades cerâmicas, na morfologia e na produção de agregados cerâmicos produzidos à base de resíduo de bauxita 研究氧化钙的添加对铝土矿渣陶瓷性能、形貌及陶瓷骨料生产的影响

Matéria (Rio de Janeiro) Pub Date : 2023-05-29 DOI: 10.1590/1517-7076-rmat-2023-0039

C. Brito, Rodrigo Nascimento Marinho, Mailson Batista de Vilhena, E. Macêdo, J. A. Souza

{"title":"Estudo dos efeitos da adição de óxido de cálcio nas propriedades cerâmicas, na morfologia e na produção de agregados cerâmicos produzidos à base de resíduo de bauxita","authors":"C. Brito, Rodrigo Nascimento Marinho, Mailson Batista de Vilhena, E. Macêdo, J. A. Souza","doi":"10.1590/1517-7076-rmat-2023-0039","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2023-0039","url":null,"abstract":"RESUMO O objetivo deste trabalho foi avaliar a influência da adição do óxido de cálcio na redução da temperatura de sinterização e nas propriedades cerâmicas de agregado sintético à base de resíduo de bauxita. Foram utilizados resíduo de bauxita, óxido de cálcio e argila para a produção de corpos de prova com a adição de 0% e 10% de óxido de cálcio. As propriedades físicas determinadas foram: absorção de água, porosidade aparente e massa específica aparente, e as matérias-primas foram submetidas a ensaios de Difração de raios X (DRX), Calorimetria Exploratória Diferencial (DSC) e Análise Termogravimétrica. A microestrutura das cerâmicas foi avaliada por Microscopia Eletrônica de Varredura (MEV) e DRX, e foi realizado o ensaio de DSC nas formulações compostas por resíduo de bauxita e argila com e sem a adição de óxido de cálcio. Os resultados indicaram que a adição do óxido de cálcio aumentou a porosidade aparente e, por consequência, a absorção de água, enquanto houve também o aumento da massa específica aparente. Quanto à mineralogia, a presença do óxido de cálcio mostrou-se diretamente ligada às alterações das fases minerais, evidenciado principalmente pelo desaparecimento de fases como quartzo e mulita e o surgimento de magnetita.","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77837404","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

Study on preparation of light oil regenerant and performance of cold recycled mixture 轻质油再生剂的制备及冷再生混合物的性能研究

Matéria (Rio de Janeiro) Pub Date : 2023-05-19 DOI: 10.1590/1517-7076-rmat-2023-0101

Xiaofeng Huang, Cheng Xie, J. Chen, Junhui Luo, Di Wei

{"title":"Study on preparation of light oil regenerant and performance of cold recycled mixture","authors":"Xiaofeng Huang, Cheng Xie, J. Chen, Junhui Luo, Di Wei","doi":"10.1590/1517-7076-rmat-2023-0101","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2023-0101","url":null,"abstract":"In order to make full use of aged asphalt, a light oil regenerant for cold mixing was prepared in this paper, and the ratio of regenerant and regeneration effect was studied through the performance test of recycled asphalt. The ratio of regenerant was determined by 60 °C kinematic viscosity, mass loss before and after aging, and asphalt three indicators. The thermogravimetric analysis determined the four-component ratio of recycled asphalt, and the mechanical properties of the recycled asphalt mixture were determined by the 15 °C splitting and 20 °C compression tests. Finally, the road performance of the recycled asphalt mixture was analyzed by rutting, low-temperature bending, and dry-wet splitting tests. When the mass ratio of light base oil: plasticizer: stable equilibrium agent: penetrant: the anti-aging agent is 80:20:25:8:5, it has a good regeneration effect. After adding 8% regenerant, the regenerated asphalt is compared with the recycled asphalt. The content of saturates and aromatics increases, and the content of resins and asphaltenes decreases. The four-component content of recycled asphalt is close to that of new asphalt. The mechanical properties test shows that the optimum content of the regenerant is 0.9%. With increased RAP content, the water stability and low-temperature crack resistance are also improved, and the high-temperature stability is reduced. However, it still meets the requirements of the regeneration specification.","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81160760","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

Optimization of drilling parameters using GRA for polyamide 6 nanocomposites 利用GRA优化聚酰胺6纳米复合材料的钻孔参数

Matéria (Rio de Janeiro) Pub Date : 2023-05-19 DOI: 10.1590/1517-7076-rmat-2022-0337

A. Thangavel, R. Kuppusamy, Ranganathan Lakshmanan

{"title":"Optimization of drilling parameters using GRA for polyamide 6 nanocomposites","authors":"A. Thangavel, R. Kuppusamy, Ranganathan Lakshmanan","doi":"10.1590/1517-7076-rmat-2022-0337","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2022-0337","url":null,"abstract":"For drilling polyamide 6 (PA6) hybrid nano composites reinforced with copper nanoparticles and multi-walled carbon nano tubes (MWCNT), this work optimizes the process variables including reinforcing percentage, drill bit diameter, feed rate, and spindle speed. In this work, the Taguchi method was used to construct the experiments. L9 orthogonal arrays were used in the trials. Torque, surface roughness, and thrust force were the three different responses on which the influence of different process factors and their combinations were examined. The ideal values of the process factors have been found by employing the grey relational code produced by the grey relational analysis. The crucial process factors were identified using analysis of variance (ANOVA). To verify the test results, a confirmation test was carried out. The surface of the drilled holes was examined with a scanning electron microscope. The optimal drilling process parameters for PA 6 nanocomposites were 0.6 weight %, 500 rpm, 90 mm/min, and 6 mm in drill diameter. The weight percentage of the nano Cu particles (60.618%) clearly has a greater impact on drilling of Polyamide 6 hybrid nanocomposites reinforced with Cu nanoparticles and MWCNT than did the drill diameter (26.699%), speed (7.407%), and feed rate (5.271%). Verification of testing results at the best standard shows that the thrust force is reduced from 288.8 N to 281.4 N, the torque is decreased from 27.01 Nm to 24.52 Nm, and the surface polish is improved from 1.414","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"263 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73277993","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: 1

Efeito da adição de polpa de celulose nanofibrilada nas propriedades de argamassas de revestimento 纳米纤维纤维素浆的加入对涂料砂浆性能的影响

Matéria (Rio de Janeiro) Pub Date : 2023-05-15 DOI: 10.1590/1517-7076-rmat-2023-0063

Matheus Pereira de Lacerda, Géssica Katalyne Bilcati, Rafaella Salvador Paulino, M. D. R. D. M. M. D. Costa, Henrique Ajuz Holzmann

{"title":"Efeito da adição de polpa de celulose nanofibrilada nas propriedades de argamassas de revestimento","authors":"Matheus Pereira de Lacerda, Géssica Katalyne Bilcati, Rafaella Salvador Paulino, M. D. R. D. M. M. D. Costa, Henrique Ajuz Holzmann","doi":"10.1590/1517-7076-rmat-2023-0063","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2023-0063","url":null,"abstract":"RESUMO A incorporação de adições de nanomateriais à base de celulose aos materiais cimentícios é interessante pois utiliza uma matéria-prima renovável e de grande disponibilidade global. Esta pesquisa buscou avaliar o efeito da adição de polpa de celulose nanofibrilada (CNF) em argamassas de revestimento. Foi produzido um traço referência (1:2:8, em volume), e outros três traços, com adição de polpa de CNF nos teores de 1,5%, 2,5% e 3,5%, em relação a massa de cimento. As argamassas foram avaliadas nos estados fresco (consistência, densidade de massa, ar incorporado e comportamento reológico pelo método squeeze-flow) e, endurecido (absorção de água por capilaridade, por imersão e resistência à compressão). Os resultados mostraram que, no estado fresco, as maiores diferenças em relação à argamassa referência foram apresentadas pela argamassa CNF_3,5%. Além do que, à medida que o teor de polpa de CNF aumentava, havia uma redução na capacidade de espalhamento das argamassas, um aumento do índice de absorção de água por capilaridade e imersão e evidenciou-se ainda que o ganho da resistência ocorria mais tardiamente. As amostras com polpa de CNF se mostraram estatisticamente iguais às de referência no que diz respeito à resistência à compressão na maior parte dos casos.","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82199486","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

Avaliação do comportamento cisalhante de misturas solo-emulsão com teores de emulsão variando de 16% a 28% em massa 评价乳液含量为16% ~ 28%的土-乳液混合物的剪切性能

Matéria (Rio de Janeiro) Pub Date : 2023-05-15 DOI: 10.1590/1517-7076-rmat-2023-0062

Paulo Mateus Barros Rodrigues, Silvrano Adonias Dantas Neto, Lucas Feitos de Albuquerque Lima Babadopulos

{"title":"Avaliação do comportamento cisalhante de misturas solo-emulsão com teores de emulsão variando de 16% a 28% em massa","authors":"Paulo Mateus Barros Rodrigues, Silvrano Adonias Dantas Neto, Lucas Feitos de Albuquerque Lima Babadopulos","doi":"10.1590/1517-7076-rmat-2023-0062","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2023-0062","url":null,"abstract":"RESUMO Neste artigo avaliou-se o efeito nos parâmetros de resistência de um solo SM estabilizado com teores de emulsão asfáltica variando entre 16% e 28% em massa. A metodologia consistiu na coleta e caracterização do solo, mistura dos materiais e exposição ao ar por 24 horas, compactação no teor ótimo pela energia Marshall (22%), e em teores acima (28%) e abaixo (16%) do ótimo, e realização de ensaios de compressão triaxial CIU em condições saturadas. O solo apresentou comportamento típico ao de um material elastoplástico com endurecimento, enquanto que as misturas apresentaram comportamento semelhante ao de um material elástico perfeitamente plástico. À medida em que o teor de emulsão foi aumentado, menores foram os ângulos de atrito e, para as misturas com 16% e 22%, maiores foram os interceptos coesivos. A mistura 28% de emulsão teve uma redução em sua coesão, devido ao excesso de ligante, o que prejudicou o contato grão a grão. Constatou-se que após determinado nível de deformação axial as misturas obtiveram um leve ganho de resistência, justificado pelo deslocamento da película de asfalto.","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83578505","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

An effect of nano-SiC with different dielectric mediums on AZ61/7.5% B4C nanocomposites studied through electrical discharge machining and Taguchi based complex proportional assessment method 通过电火花加工和基于田口的复比例评价方法，研究了不同介电介质的纳米sic对AZ61/7.5% B4C纳米复合材料的影响

Matéria (Rio de Janeiro) Pub Date : 2023-05-15 DOI: 10.1590/1517-7076-rmat-2023-0058

Sakthi Selvarasu, Mahendran Subramanian, Jayasuthahar Thangasamy

{"title":"An effect of nano-SiC with different dielectric mediums on AZ61/7.5% B4C nanocomposites studied through electrical discharge machining and Taguchi based complex proportional assessment method","authors":"Sakthi Selvarasu, Mahendran Subramanian, Jayasuthahar Thangasamy","doi":"10.1590/1517-7076-rmat-2023-0058","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2023-0058","url":null,"abstract":"Magnesium based nanocomposites are new lightweight and high-performance materials for potential applications in biomedical, electronics, aerospace and automotive sectors owing to their lower density when compared with aluminum-based materials and steel. This article discusses the effect of pulse duration, pulse interval, current, gap voltage on Surface Roughness (SR), Material Removal Rate (MRR) and Electrode Wear Rate (EWR) of AZ61/7.5% B 4 C composites have been studied based on the different dielectric medium, kerosene, Electrical Discharge Machining (EDM) oil and nanosilicon carbide added EDM oil. The magnesium nanocomposites have been prepared through stir casting. The L16 orthogonal array has been selected based on the four factors with four levels. The Complex Proportional Assessment (COPRAS) method has been used to find the optimum process parameters. An overall analysis found that the AZ61/7.5% B 4 C composites has produced high mechanical properties compared with 2.5, 5, and 10wt.% B 4 C nanocomposites. The pulse duration has most influencing factor for affecting the MRR and SR using analysis of variance. The developed quadratic models have well fit with experimental values. Using COPRAS, the optimal parameters are observed to be a maximum of 0.00730 g/s MRR, a minimum of 0.00127 g/s EWR, and a SR of 3.196 µm. The nano-SiC powder with EDM oil has a higher improvement than that of kerosene and EDM oil. The nano-SiC mixed EDM oil produces an improved performance measure of 81% MRR, 55% EWR, and 47% SR.","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73809511","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

Corrosion behavior of a 2304 lean duplex stainless steel cold-rolled and short-term annealed at different temperatures 2304稀薄双相不锈钢冷轧和短期退火在不同温度下的腐蚀行为

Matéria (Rio de Janeiro) Pub Date : 2023-05-15 DOI: 10.1590/1517-7076-rmat-2023-0026

R. F. Assumpção, D. Sicupira, D. Santos

{"title":"Corrosion behavior of a 2304 lean duplex stainless steel cold-rolled and short-term annealed at different temperatures","authors":"R. F. Assumpção, D. Sicupira, D. Santos","doi":"10.1590/1517-7076-rmat-2023-0026","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2023-0026","url":null,"abstract":"This study examined the effects of cold working and subsequent annealing treatment for a short time on the corrosion behavior of a lean duplex stainless steel (LDSS). The as-received sample was solution treated at 1100 °C for 1800 s and cold rolled. The cold deformation (75%) was followed by isochronic annealing at 900, 950, 1000, 1050 and 1100 °C for 180 s. The microstructural changes were evaluated by scanning electron microscopy (SEM) and Vickers hardness, while corrosion behavior was investigated by cyclic potentiodynamic polarization technique and electrochemical impedance spectroscopy (EIS) in 3.5% NaCl solution at 22 ± 2 °C. After cyclic polarization, pits morphology was characterized by SEM. Cold rolling lowered lamellar spacing between the phases and increased hardness. Hardness at temperatures higher than 950 °C was equal to the 2304 LDSS solution treated. Although grain refinement is observed due to recrystallization, the corrosion resistance was not significantly improved. The highest pitting potential and charge transfer resistance were obtained after annealing at 1000 °C for 180 s. The pit distribution indicates that the corrosion behavior of the phases changed during the cold rolling and annealing treatment, and pitting was initiated preferentially in the α/γ boundaries and inside the α domains.","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86154938","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

Research on springback compensation for multi-point forming of corrosion-resistant aluminum alloy hyperbolic component 耐腐蚀铝合金双曲件多点成形回弹补偿研究

Matéria (Rio de Janeiro) Pub Date : 2023-05-15 DOI: 10.1590/1517-7076-rmat-2022-0304

Hang Shao, Yanlong Wang, Haixia Wan, Hao Wang, Zhongfeng Zhang, W. Fu

{"title":"Research on springback compensation for multi-point forming of corrosion-resistant aluminum alloy hyperbolic component","authors":"Hang Shao, Yanlong Wang, Haixia Wan, Hao Wang, Zhongfeng Zhang, W. Fu","doi":"10.1590/1517-7076-rmat-2022-0304","DOIUrl":"https://doi.org/10.1590/1517-7076-rmat-2022-0304","url":null,"abstract":"Springback is the reverse elastic deformation produced by the unloading process, which is a common phenomenon in the sheet metal stamping and forming process and affects the final forming accuracy of the part. Aiming at the problem of springback error in the multi-point forming process of hyperbolic component for ships, the springback phenomenon of hyperbolic component was studied by combining theoretical analysis, numerical simulation and forming test. The mechanical property parameters and stress-strain curves were obtained by tensile tests using a new corrosion-resistant aluminum alloy as the sheet material. The springback compensation method is introduced, the springback compensation formula based on surface curvature is derived, and the compensated mold surface is further corrected and fitted using the cubic B-sample method. The multi-point punch tooling was generated and modeled by the multi-point 3D modeling software MPFCAD and finite element software to simulate the multi-point forming and unloading springback process of the hyperbolic member. Multi-point forming tests were conducted on a multi-point forming press for corrosion-resistant aluminum alloy hyperbolic component, and the formed parts were checked for accuracy and error analysis by 3D scanning and GOM Inspect software. The results show that the springback compensation method used in this paper can effectively reduce the springback error in the multi-point forming process of corrosion-resistant aluminum alloy hyperbolic component, and the effect is very good.","PeriodicalId":18246,"journal":{"name":"Matéria (Rio de Janeiro)","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79907411","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