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Microstructural and mechanical properties at the submicrometric length scale under service-like working conditions on ground WC-Co grades
(Elsevier, 2023-11)
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Article.
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he unique combination of hardness, toughness, and wear resistance exhibited by heterogeneous hard materials, particularly cemented carbides (WC-Co), has made them preeminent material choices for extremely demanding ...
Design of alternative binders for hard materials
(2020-02-01)
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Article.
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In the last years, a special interest has emerged towards the total or partial substitution of traditional cemented carbides composing elements. In this study, a systematic methodology is presented and used to design ...
Effect of laser surface texturing on Schmid factor and plastic deformation mechanisms on AISI 301LN steel
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-10-23)
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Article.
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In this comprehensive study, the multifaceted impact of laser surface texturing (LST) on AISI 301LN stainless steel is explored. Changes in the microstructure, mechanical properties, and grain characteristics are examined. ...
Deformation kinetics of a TRIP steel determined by in situ high-energy synchrotron X-ray diffraction
(2021-12-09)
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Article.
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The microstructure design and the development of predictive approaches exploiting the transformation-induced plasticity (TRIP) effect require a keen understanding of the kinetics governing the strain-induced martensitic ...
Influence of the crystallographic orientation on the yield srength and deformation mechanisms of astenitic grains in metastable sainless steels investigated by spherical nanoindentation
(2019-06-13)
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The mechanical behavior of a metastable stainless steel is studied by spherical nanoindentation, as a function of crystallographic orientation of its austenitic grains. The residual imprints are analyzed by electron ...
Carbon addition effects on microstructure and small-scale hardness for Ti(C,N)-FeNi cermets
(2019-12-01)
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The current study investigates the influence of carbon addition on the microstructural and micromechanical properties of Ti(C,N)-FeNi cermets with different ceramic/metal phase ratios. Evaluation of small-scale hardness ...
Measuring the fracture toughness of single WC grains of cemented carbides by means of microcantilever bending and micropillar splitting
(2021-08-01)
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The main goal of this work is to obtain a reliable value of the fracture toughness of single grains of tungsten carbide (WC). It is attempted by testing microcantilever and micropillar samples shaped out, by means of focused ...
Anisotropy effect of bioinspired ceramic/ceramic composites: Can the platelet orientation enhance the mechanical properties at micro- and submicrometric length scale?
(Elsevier, 2021-04-01)
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In advanced ceramics, improving toughness usually relies on the introduction of a soft metallic or polymeric ductile phase, which decreases the mechanical properties. Some natural materials are strong, stiff and tough due ...
Oxidation behavior of maraging 300 alloy exposed to nitrogen/water vapor atmosphere at 500 °C
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-06-24)
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Article.
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Aging heat treatments in maraging steels are fundamental to achieve the excellent mechanical properties required in several industries, i.e., nuclear, automotive, etc. In this research, samples of maraging 300 alloy were ...
Geometrically necessary dislocations on plastic deformation of polycrystalline TRIP steel
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-06-01)
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Article.
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In this study, the main deformation behavior in terms of geometrically necessary dislocations (GND) was investigated on a transformation induced plasticity (TRIP) stainless steel by using sharp indentation at nanometric ...