Tecnologia em Metalurgia, Materiais e Mineração
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Tecnologia em Metalurgia, Materiais e Mineração



Archive

Volume 17, Issue 4, 2020

17(4), 2020

Original Article

https://doi.org/10.4322/2176-1523.20202119
Tribological evaluation of duplex treatment of plasma nitriding/ oxidation applied to injection mold extraction system Tiago Marcelo Reis, Aline Luísa Bandeira Dotta, Maria Cristina Moré Farias, Alexandre Luís Gasparin Injection mold; Plasma nitriding; Post-oxidation; Tribology

Original Article
https://doi.org/10.4322/2176-1523.20202009
Applying multivariate experimental design to copper leaching from printed circuit boards Rodrigo Ferreira Gomes, Matheus Mello Pereira, Versiane Albis Leão Printed Circuit Boards (PCB); Recycling; Hydrometallurgy; Design of experiments; Metals.

Original Article
https://doi.org/10.4322/2176-1523.20202094
Analysis of mechanical behavior of AA7004 and AA7075 alloys thixoforging in an eccentric press Luis Vanderlei Torres, Eugênio José Zoqui Semisolid material; Thixoforging; Mechanical behavior; AA7004; AA7075.

Original Article
https://doi.org/10.4322/2176-1523.20202026
Technological characterization of automotive catalysts disabled for Pt, Pd, and Rh recovery Renan Teixeira Baia, Kleber Bittencourt Oliveira, Emanuel Negrão Macêdo, Jéssica Alves da Silva Automotive catalysts; Characterization; Cordierite; Platinum group.

Original Article
https://doi.org/10.4322/2176-1523.20202018
Evaluation of chemical compatibility of epoxy LY 1316 with refrigerant R410A Petrius Paulo Tambosi, Fernando Humel Lafratta, João Guilherme Wagner Chemical compatibility; Air conditioning; Thermoset.

Original Article
https://doi.org/10.4322/2176-1523.20201975
Determination of partition blocks in rock masses through descontinuity plans with use of UAV Alfredo César Vale de Araújo, Silas Leonardo Dias Vasconcelos, Jorge Luiz Valença Mariz, Júlio Cesar de Souza, Márcio Luiz de Siqueira Campos Barros Partition blocks; Discontinuities; UAV; Scan face

Original Article
https://doi.org/10.4322/2176-1523.20202033
Material selection of walking stick tips for visually impaired people using TOPSIS method Cláudia Canto de Souza Leão, Alessandro de Castro Corrêa, Jean da Silva Rodrigues, Elza Monteiro Leão Filha Walking stick tips; Composites; TOPSIS.

Original Article
https://doi.org/10.4322/2176-1523.20202198
The effects of auto-tempering martensite on mechanical strength of a microalloyed steel containing boron and titanium Wagner Monteiro de Souza, André Itman Filho, Rosana Vilarim da Silva, João Batista Ribeiro Martins, Luciana Xavier da Cruz Lima Boron steels; Titanium nitride; Auto-tempering martensite; Hardenability.

Original Article
https://doi.org/10.4322/2176-1523.20201963
Analysis of the effects of alumina (Al2 O3 ) addition in micrastructure and hardness in Zamac 5 by gravity Felipe Baptista Dieter, Leonardo Felix Scheffel, Fernando Dal Pont Morisso, Carlos Leonardo Pandolfo Carone, Sandra Raquel Kunst, Luciane Taís Führ, Mariane Fernandes, Luã Tainachi Mueller, Eduardo Luís Schneider, Felipe Dalla Vechia, Cláudia Trindade Oliveira Zamak; Casting; Aluminum oxide.

Original Article
https://doi.org/10.4322/2176-1523.20202217
Effect of grain size on the drawability of the niobium-stabilized ferritic stainless steel ASTM 430 Caio César Caldeira Moura, Reginaldo Pinto Barbosa, Tarcísio Reis de Oliveira Anisotropy; Texture; Grain size; Deep drawability.

Original Article
https://doi.org/10.4322/2176-1523.20202144
Evaluation of the fine steel sludge as additive in concrete manufacturing Gilson de Souza Santos, Aline Pereira Leite Nunes, Wanyr Romero Ferreira Waste; Sustainability; Steelworks slag; Concrete.

Original Article
https://doi.org/10.4322/2176-1523.20202214
Geometallurgy study of the Catalão I Nelsonite bodies aiming to increase the niobium production Leonardo Vasconcellos Rangel, Douglas Batista Mazzinghy, Gilberto Rodrigues da Silva, Felipe Seguin, Michelle Fernanda De Lira Teixeira, Sebastião Ubaldino Ferreira Junior, Caio Henrique Ribeiro Vieira, Wanderson Ferreira Borges Junior, Vinicius Campos Silva, Gabriel Rocha Dimitrov Geometallurgy; Mineralogy; Recovery; Tailings; Niobium; Pyrochlore.

Original Article
https://doi.org/10.4322/2176-1523.20202065
Polyurethane microcomposites containing wet blue residue from the leather industry by in situ polymerization Dandara Dessimon, Leonardo Chiká, Leonardo Moreira dos Santos, Sandra Einloft, Fernando Morisso, Claudia Trindade Oliveira, Leonardo Felix Scheffels, Sandra Raquel Kunst, Patrice Monteiro de Aquim, Carlos Leonardo Pandolfo Carone Microcomposite; Polyurethane; In situ polymerization; Wet blue residue.

Original Article
https://doi.org/10.4322/2176-1523.20201999
Application of the method of mechanics energy conservation and of the quantity for ornamental stone exploitation with level of plan reference Alfredo César Vale de Araújo, Rafael Franco e Silva, Gustavo do Prado Siqueira, Marcio Luiz Siqueira Campos Barros Natural Rock; Energy; Quantity of Movement.

Original Article
https://doi.org/10.4322/2176-1523.20201864
Evaluation of the efficiency of conductor coverings for electrostatical shielding and dissipation of static charge in an insulating polymer Alexandros Leonidas Aravanis, Carolina Delwing, Alvaro Meneguzzi Polyaniline; Static charge; Conductive polymer; Coatings; Antistatic.

Original Article

Tecnol. Metal. Mater. Min.

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