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Microstructural Evolution Due to One Thermal Cycle in a Superduplex Stainless Steel ASTM A890/A890M-Grade 6A in the As-Weld and Post-Weld Heat Treatment Conditions
(Univ Fed Sao Carlos, Dept Engenharia Materials, 2019-01-01)
During welding of the superduplex stainless steels are exposed to thermal cycles, allowing precipitation of deleterious phases as well as unbalance as the ferrite and austenite phases. This work analyzed the microstructural ...
Intragranular formation of austenite during delta ferrite decomposition in a duplex stainless steel
(SPRINGER, 2010)
A Fe-22.5%Cr-4.53%Ni-3.0%Mo duplex stainless steel was solution treated at 1,325 A degrees C for 1 h, quenched in water and isothermally treated at 900 A degrees C for 5,000 s. The crystallography of austenite was studied ...
Avaliação da microestrutura, macroestrutura e microdureza ao adicionar carboneto de boro (B4C) em ligas Fe-Mn-Cr-Si
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilDepartamento Acadêmico de MecânicaEngenharia MecânicaUTFPR, 2013-11-25)
The cavitation mass loss of the turbine blades is a phenomenon that occurs in the most of the hydroelectric plants. The cavitation appears when the liquid form a difference of pressure along the blades which bump against ...
Erosion-fatigue of steam turbine blades
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
The premature failure of steam turbine rotor blades, manufactured in forged 12% Cr-NiMoV martensitic stainless steel, was investigated using visual inspection non-destructive testing, macro and microfractography, microstructural ...
Efeito do revenimento sobre a resistência à corrosão do aço inoxidável uns s41426
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2020-02-28)
Supermartensitic stainless steels were developed during the 1990s as an alternative to duplex stainless steels for manufacture of oil country tubular goods. As a result of microstructural variations caused during tempering ...
Susceptibility to localized corrosion of ASTM F745 and UNS S32750 stainless steels. influence of pH and cytotoxicity evaluation
(Benthan Science, 2020-05)
Background: Body fluids are highly corrosive as they contain chlorides and hydroxides ions, as well as salts, bacteria, proteins and dissolved oxygen. The pH of the body is usually around 7.4, although this value can vary ...
Abrasion and corrosion resistance of new Ni-based coating deposited by HVOF thermal spray process
(MANEY PUBLISHING, 2010)
Coatings based on NiCrAlC intermetallic based alloy were applied on AISI 316L stainless steel substrates using a high velocity oxygen fuel torch. The influence of the spray parameters on friction and abrasive wear resistance ...
Estudo sobre o torneamento de aços inoxidáveis
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA MECÂNICAPrograma de Pós-Graduação em Engenharia MecanicaUFMG, 2021-07-09)
Stainless steels are widely used in daily life in domestic and industrial items and
are considered difficult to machine materials due to characteristics such as: high ductility, low
thermal conductivity, formation of ...