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Mostrando ítems 21-30 de 201
In‐situ microscopic analysis of ferritic ductile iron during tensile loading: Relation between matrix heterogeneities and damage mechanisms
(Wiley Blackwell Publishing, Inc, 2019-05)
An in‐situ microscopic analysis of the damage mechanisms of ferritic ductile iron under uniaxial tensile testing is carried out in this work. The experimental methodology combines specialized metallography techniques, ...
Análise numérica do crescimento de trinca sob influência de nódulos de grafita submetida à flexão presente na raiz de dentes de engrenagem
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2016-11-16)
The austempered ductile iron presents many advantageous mechanical properties combined with competitive cost to be used as raw material for gears. In order to promote the consolidation of technical knowledge of this material, ...
Relation between microstructural heterogeneities and damage mechanisms of a ferritic spheroidal graphite cast iron during tensile loading
(Wiley Blackwell Publishing, Inc, 2020-06)
In this work, the influence of the metallic matrix heterogeneities and the spheroidal graphite nodules distribution on both crack initiation and propagation and damage evolution during tensile loading of ferritic spheroidal ...
Damage Evolution in Compacted Graphite Iron during Thermo-Mechanical Fatigue Testing
(INTEMA - UNMdP-CONICET, 2014)
Damage Evolution in Compacted Graphite Iron during Thermo-Mechanical Fatigue Testing
(INTEMA - UNMdP-CONICET, 2014)
Hydrogen embrittlement of a Fe-Cr-Ni alloy: Analysis of the physical and chemical processes in the early stage of stress corrosion cracking initiation
(Elsevier, 2013-01)
The interaction of two-hydrogen atoms in a zone of g-Fe55Cr25Ni20 alloy having a vacancy (V) was studied by the atom superposition and electron delocalization molecular orbital (ASED-MO) method. The impurities are located ...
Study of the fracture of ferritic ductile cast iron under different loading conditions
(Wiley, 2014-12-08)
This work is a continuation of the studies presented in a recent paper by the authors, where the fracture surfaces of pearlitic ductile cast iron under different loading conditions were exhaustively analyzed. In this study, ...
Experimental and numerical assessment of fracture toughness of dual-phase austempered ductile iron
(Wiley Blackwell Publishing, Inc, 2010-01)
The effects of the microstructure topology on the fracture toughness of dual-phase austempered ductile iron are studied in this paper by means of finite element modelling and experimental testing. To this end, specimens ...
Influence of phase transition on shock-induced spallation in nanocrystalline iron
(American Institute of Physics, 2015-11)
Intense shock waves may lead to spallation of the sample. Recent experiments show differences of shock spallation in iron depending on whether the samples underwent the pressure-induced bcc-hcp phase transformation or not. ...
Degradación de Colorante Amarillo 12 de Aguas Residuales Industriales utilizando Hierro Cero Valente, Peróxido de Hidrógeno y Radiación Ultravioleta
(Centro de Informacion Tecnologica, 2016-01-01)
The Fenton heterogeneous process in a fluidized bed reactor using Zero Valent Iron (ZVI), in the metallic state, for the treatment of textile wastewater has been used an analyzed. The aim of this work was to optimize the ...