scholarly journals Caracterização Mecânica e Microestrutural da Zona de Transição do Aço 9% Ni Revestido com Inconel 625®

2021 ◽  
Vol 26 ◽  
Author(s):  
Cleber do Prado Ferreira Junior ◽  
Antonio do Nascimento Silva Alves ◽  
Jeferson José de Carvalho ◽  
Jaime Casanova ◽  
Sérgio Duarte Brandi
Keyword(s):  
Inconel 625

Resumo: Aços carbono são revestidos com Inconel 625® para atender os requisitos de projeto no Pré-Sal. Entretanto, isso gera microrregiões conhecidas como a zona não misturada (ZNM) e a zona parcialmente misturada (ZPM) sendo a sua formação relacionada a dissimilaridade entre o metal de base e o metal de adição. O objetivo desse artigo é analisar o efeito da diluição, da ZPM e da ZNM e do reaquecimento dessas microrregiões sobre a resistência ao arrancamento do aço 9%Ni revestido com a liga Inconel 625®. A ZNM tem direções cristalográficas similares a ZAC e é CCC igual a ZAC. A ZPM apresenta direções cristalográficas mais heterogêneas quando comparadas ao metal de solda e é CFC igual ao metal de solda. A nanodureza da ZPM é similar a ZAC e até 42,5% maior que o metal de solda. A nanodureza da ZNM é até 14,9% menor que ZPM, até 48,2% menor que o metal de solda e até 15% menor que a ZAC. Todos os corpos de prova tiveram a propagação da trinca no metal de solda e atendem o requisito de 140 MPa mínimo para a tensão de cisalhamento. A diluição apresenta uma correlação com a tensão de cisalhamento.

Tool wear analysis in the turning of Inconel 625 alloy

2019 ◽  
Author(s):  
Diego de Medeiros Barbosa ◽  
Leticia Helena Guimarães Alvarinho ◽  
Aristides Magri ◽  
Daniel Suyama
Keyword(s):  
Tool Wear ◽  
Inconel 625 ◽  
Wear Analysis ◽  
Inconel 625 Alloy

ANÁLISE DO TORNEAMENTO DE INCONEL 625 POR MEIO DE PLANEJAMENTO DE EXPERIMENTOS

2017 ◽  
Author(s):  
Daniel Suyama ◽  
Diego de Medeiros Barbosa ◽  
Aristides Magri ◽  
Anselmo Diniz
Keyword(s):  
Inconel 625

scholarly journals Characterization of the Structure, Mechanical Properties and Erosive Resistance of the Laser Cladded Inconel 625-Based Coatings Reinforced by TiC Particles

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2225
Author(s):  
Aleksandra Kotarska ◽  
Tomasz Poloczek ◽  
Damian Janicki
Keyword(s):  
Laser Cladding ◽  
Inconel 625 ◽  
Matrix Composites ◽  
Erosion Rates ◽  
Laser Cladding Process ◽  
Composition Variation ◽  
The Matrix ◽  
Reinforcing Material ◽  
Inconel 625 Superalloy

The article presents research in the field of laser cladding of metal-matrix composite (MMC) coatings. Nickel-based superalloys show attractive properties including high tensile strength, fatigue resistance, high-temperature corrosion resistance and toughness, which makes them widely used in the industry. Due to the insufficient wear resistance of nickel-based superalloys, many scientists are investigating the possibility of producing nickel-based superalloys matrix composites. For this study, the powder mixtures of Inconel 625 superalloy with 10, 20 and 40 vol.% of TiC particles were used to produce MMC coatings by laser cladding. The titanium carbides were chosen as reinforcing material due to high thermal stability and hardness. The multi-run coatings were tested using penetrant testing, macroscopic and microscopic observations, microhardness measurements and solid particle erosive test according to ASTM G76-04 standard. The TiC particles partially dissolved in the structure during the laser cladding process, which resulted in titanium and carbon enrichment of the matrix and the occurrence of precipitates formation in the structure. The process parameters and coatings chemical composition variation had an influence on coatings average hardness and erosion rates.

scholarly journals Semi-Hybrid CO2 Laser Metal Deposition Method with Inter Substrate Buffer Zone

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 720
Author(s):  
Bogdan Antoszewski ◽  
Hubert Danielewski ◽  
Jan Dutkiewicz ◽  
Łukasz Rogal ◽  
Marek St. Węglowski ◽  
...  
Keyword(s):  
Structural Steel ◽  
Co2 Laser ◽  
Hybrid Method ◽  
Steel Substrate ◽  
Metal Deposition ◽  
Inconel 625 ◽  
Metallographic Analysis ◽  
Deposition Method ◽  
High Alloy ◽  
Powder Deposition

This article presents the results of the metal deposition process using additive materials in the form of filler wire and metal powder. An important problem in wire deposition using a CO2 laser was overcome by using a combination of the abovementioned methods. The deposition of a multicomponent alloy—Inconel 625—on a basic substrate such as structural steel is presented. The authors propose a new approach for stopping carbon and iron diffusion from the substrate, by using the Semi-Hybrid Deposition Method (S-HDM) developed by team members. The proposed semi-hybrid method was compared with alternative wire and powder deposition using laser beam. Differences of S-HDM and classic wire deposition and powder deposition methods are presented using metallographic analysis, within optic and electron microscopy. Significant differences in the obtained results reveal advantages of the developed method compared to traditional deposition methods. A comparison of the aforementioned methods performed using nickel based super alloy Inconel 625 deposited on low carbon steel substrate is presented. An alternative prototyping approach for an advanced high alloy materials deposition using CO2 laser, without the requirement of using the same substrate was presented in this article. This study confirmed the established assumption of reducing selected components diffusion from a substrate via buffer layer. Results of metallographic analysis confirm the advantages and application potential of using the new semi-hybrid method for prototyping high alloy materials on low alloy structural steel substrate.

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