In terms of chloride transport, replaced cement, especially ternary-blended cement had higher resistance to chloride transport and exhibited slightly lower development of compressive strength.
However, the poor wear protection is its substantial disadvantage. Thermal and derivative analysis was used to study the crystallization process. Widely used biomedical alloys, such as 316L steel, CoCrMo and Titanium alloys are specifically addressed in this overview.
Comprehensive characterizations including, The notch sensitivity of additively manufactured IN 625 superalloy produces by laser powder bed fusion (LPBF) has been investigated by tensile testing of cylindrical test pieces. A deflection calculation formula is established based on the stress–strain relationship of the beam under long-term loading and the characteristics of the RAC.
We use cookies on our website to ensure you get the best experience. Considering the literature analysis, four albumin-related phenomena can be distinguished: adsorption, reduction, precipitation, and protein-metal binding.
These enhancements were attributed to the fact that fine limestone powder can accelerate the early hydration reaction rate and promote the formation of ettringite due to its nucleation effect.
The obtained results are promising from the point of view of future creation of tensegrity lattices and metamaterials with extreme mechanical properties. Guest Editors who are experts in the subject and oversee the editorial process for papers.
The research was divided into three phases where the joints were subjected to (I) artificial weathering in a laboratory environment, (II) real weathering in an external environment, and (III) weathering via a real application that was monitored for almost 4 years. You seem to have javascript disabled.
Regardless of the notch root radius, the investigated alloy exhibits notch strength ratios higher than unity in both as-built and in stress-relieved states, showing that the additive manufactured IN 625 alloy is not prone to brittleness induced by the presence of V-notches.
The differences in the calculation of the temperature values using these models did not exceed 3%, and the calculation time for the 2D model, compared to the 3D model, was shorter approximately 85 times for the braking cycle lasting 5032 s, and approximately 45 times for the braking cycle lasting 3297 s. The study focuses on the identification of extreme mechanical properties of 3D lattice metamaterials based on regular tensegrity modules: 4-strut simplex, 3-strut simplex, expanded octahedron, truncated tetrahedron and X-module. Understanding the interactions between biomedical alloys and body fluids is of importance for the successful and safe performance of implanted devices. Special Issues are led by
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A spot periodic heating method is a highly accurate, non-contact method for the evaluation of anisotropy and relative thermophysical property distribution.
Materials runs special issues to create collections of papers on specific topics.
From the simulations, we have managed to establish a relationship between total energy absorption capacity and wall thickness. This study sets out to determine the extent to which the cross-sectional diameter contributes to their energy-absorbing properties.
A hybrid approach, based on experimental tests and accompanied by the complementary results obtained by the finite element modelling of X20Cr13 steel in elastic–plastic range, confirmed a linear relationship between the value of the characteristic parameter and the magnitude of equibiaxial stress at the surface.
This method considers finite sample size, sensitivity distribution of infrared ray detector, intensity distribution of heating laser and sample thickness. We use cookies on our website to ensure you get the best experience.
Special Issues are led by Guest Editors who are experts in the subject and oversee the editorial process for papers.
One of the analysed materials is identified as quasi bimode, two as quasi trimodes, another one as a trimode and one more as a unimode. The focus is placed on sealed joints in façade applications, which can serve different purposes and can also be.
The extensive research scope confirmed one commonly known presumption, that standardized artificial weathering/aging methods are not able, from a long-term perspective, to simulate the impact of a real environment. The numerical analysis was performed using Abaqus 6.14 software. MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. The main purpose of this paper is to propose, based on the literature review, a new multiaxial fatigue strain criterion, analogous to the Dang Van stress criterion, considering the maximum amplitude of the shear strain and volumetric strain.
The joints exposed to the real environment were either completely deteriorated or showed signs of advanced aging. those of the individual authors and contributors and not of the publisher and the editor(s).
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In these results, the obtained thermal diffusivity of pure copper corresponded well with previous literature values.
Explores the relationship between structure, properties and uses of materials; Publishes reviews, full-length papers, and short communications The article proposes two 3D and 2D numerical FE models of frictional heating for the estimation of temperature distributions in railway tread brake in 1xBg configuration during repeated long-term braking. The test parameters include the replacement rate of the recycled coarse aggregates (RCAs), the replacement rate of the recycled fine aggregates (RFAs), the concrete strength, and the stress ratio.
In this work, severe plastic deformation (SPD) of the newly designed Ti-Nb-Zr-Ta-Fe-O GUM metal was successfully conducted at room temperature using high speed high pressure torsion (HSHPT) followed by cold rolling (CR) to exploit the suitability of the processed alloy for bone staples.
The laser-alloyed layers consisted of the only re-melted zone (MZ).
The statements, opinions and data contained in the journals are solely The paper presents a method for estimating the value of equibiaxial stress in a surface layer of a material by using a modified hardness measurement procedure with a Vickers indenter. The paper presents the effect of Cr, Mo, V and W on the crystallization process and the microstructure of HPDC aluminum alloy as well as an alloy from the shell mold. The progress of hydration was observed using X-ray diffraction (XRD) analysis and compressive strength while durability of concrete was monitored by chloride penetration resistance and chloride profiles. The specific aim of the study was to determine the extent to which variable wall thickness affects the energy absorption capacity of the components under study. However, the poor wear protection is its substantial disadvantage. However, future research is needed to better understand the influence of notches on additive manufactured IN 625 alloy behaviour under more complex stresses.
Smooth and V-notched test pieces with four different radii were tested both in as-built state and after.
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