A5078439689- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Metal Alloys Wear and Properties
- Corrosion Behavior and Inhibition
- Tribology and Wear Analysis
- Advanced materials and composites
- Copper Interconnects and Reliability
- Advanced ceramic materials synthesis
- Adhesion, Friction, and Surface Interactions
- Lubricants and Their Additives
- Semiconductor materials and devices
- Microbial Metabolic Engineering and Bioproduction
- Hydrogen embrittlement and corrosion behaviors in metals
- Enzyme Catalysis and Immobilization
- Plant biochemistry and biosynthesis
- Metallurgical and Alloy Processes
- Tunneling and Rock Mechanics
- Boron and Carbon Nanomaterials Research
- Brake Systems and Friction Analysis
- Mechanical stress and fatigue analysis
Universidade Tecnológica Federal do Paraná
2017-2019
Universidade Federal do Paraná
2017
Universidade de São Paulo
2013
Surface (Brazil)
2013
Universidade de Caxias do Sul
2010-2011
Universidade Regional Integrada do Alto Uruguai e das Missões
2009
Resin‐bonded molybdenum disulfide (MoS 2 ) is widely applied as a solid lubricant. However, multiple coatings are usually required to meet other requirements in mechanical systems. In this study, quenched and tempered AISI 4130 steel was used the substrate, being shot blasted. Furthermore, three layers were successively deposited: zinc phosphate layer, phenolic resin (basecoat), topcoat based on MoS . The thicknesses of different obtained by scanning electron microscope ball‐cratering...
The mechanisms of plasma post-oxidation nitrided AISI 1045 plain steel were investigated. influence temperature and time on the oxide layer thickness, morphology, composition addressed. thickness grows exponentially with temperature, activation energy 68 ± 5 kJ mol − 1. dependence other hand, is governed by a diffusion-reaction process. It was verified that plays an important role morphology oxide. Indeed, at highest 550 °C, not homogeneous has lower hardness than layers obtained 480 to 500...
Abstract Particle abrasivity is an important concept for helping to select materials pumps and disc cutters in underground excavation, specific ASTM standards are available making these selections. However, manufacturing processes which abrasive action their core, the particle size range approximately a few micrometers. The evaluation of using microscale abrasion test matches this particles purpose, but relatively investigations kind method have been conducted. aim investigation use evaluate...
Abstract Samples of AISI 409 were thermochemically treated by the Solution Heat Treatment after Plasma Nitriding (SHTPN) process. SHTPN process consisted a nitriding step followed solution annealing at 1100 °C and rapid cooling down to room temperature. The second cycle quenching (950 or 1050 °C), tempering (250, 450, 650 was performed sequentially SHTPN. Lubricated reciprocating tests employed analyze friction wear behaviors. A bearing steel ball used as counterpart. analysis worn surfaces...