On the evaluation of certain strength characteristics and fracture features of iron-based sintered MMCs with nanooxide additives

Feldshtein, E.; Dyachkova, L. N.; Królczyk, Grzegorz

doi:10.1016/j.msea.2019.04.044

Cited by 15 publications

(5 citation statements)

References 36 publications

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“…To neutralize the influence of Ti, Al, and V on the effectiveness of registration of the presence of hydroxyapatite compounds on the surfaces of the tested titanium alloy samples, analyzed by EDS, these elements were excluded from the list of analyzed elements. A similar approach was put forward by Feldshtein et al [58].…”

Section: Measurement Of Surface Roughness Metricsmentioning

confidence: 91%

Corrosion Resistance and Surface Bioactivity of Ti6Al4V Alloy after Finish Turning under Ecological Cutting Conditions

et al. 2021

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The influence of cooling conditions and surface topography after finish turning of Ti6Al4V titanium alloy on corrosion resistance and surface bioactivity was analyzed. The samples were machined under dry and minimum quantity lubrication (MQL) conditions to obtain different surface roughness. The surface topographies of the processed samples were assessed and measured using an optical profilometer. The produced samples were subjected to electrochemical impedance spectroscopy (EIS) and corrosion potential tests (Ecorr) in the presence of simulated body fluid (SBF). The surface bioactivity of the samples was assessed on the basis of images from scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) analysis. The inspection of the surfaces of samples after turning under dry and MQL conditions revealed unevenly distributed precipitation of hydroxyapatite compounds (Ca/P) with a molar ratio in the range of 1.73–1.97. Regardless of the cutting conditions and surface roughness, the highest values of Ecorr ~0 mV were recorded on day 7 of immersion in the SBF solution. The impedance characteristics showed that, compared to the MQL conditions, surfaces machined under dry conditions were characterized by greater resistance and the presence of a passive layer on the processed surface. The main novelty of the paper is the study of the effect of ecological machining conditions, namely, dry and MQL cutting on the corrosion resistance and surface bioactivity of Ti6Al4V titanium alloy after finish turning. The obtained research results have practical significance. They can be used by engineers during the development of technological processes for medical devices made of Ti6Al4V alloy to obtain favorable functional properties of these devices.

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Section: Measurement Of Surface Roughness Metricsmentioning

confidence: 91%

Corrosion Resistance and Surface Bioactivity of Ti6Al4V Alloy after Finish Turning under Ecological Cutting Conditions

et al. 2021

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“…The as-built specimen shows an ultimate tensile strength (UTS) of 1245 MPa and a strain of 9.49% ( Figure 5 a), thereby suggesting the best tensile properties. Only a cleavage fracture (yellow triangle in Figure 6 a) is observed, indicating a typical brittle fracture [ 33 , 34 ]. The hardness of T5003 is similar to that of the as-built specimen; however, the UTS is 1126 MPa, which is 90% of that of the as-built specimen.…”

Section: Resultsmentioning

confidence: 99%

Influence of Tempering Temperature and Time on Microstructure and Mechanical Properties of Additively Manufactured H13 Tool Steel

et al. 2022

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Among various processes for manufacturing complex-shaped metal parts, additive manufacturing is highlighted as a process capable of reducing the wastage of materials without requiring a post-process, such as machining and finishing. In particular, it is a suitable new manufacturing technology for producing AISI H13 tool steel for hot-worked molds with complex cooling channels. In this study, we manufactured AISI H13 tool steel using the laser power bed fusion (LPBF) process and investigated the effects of tempering temperature and holding time on its microstructure and mechanical properties. The mechanical properties of the sub-grain cell microstructure of the AISI H13 tool steel manufactured using the LPBF process were superior to that of the H13 tool steel manufactured using the conventional method. These sub-grain cells decomposed and disappeared during the austenitizing process; however, the mechanical properties could be restored at a tempering temperature of 500 °C or higher owing to the secondary hardening and distribution of carbides. Furthermore, the mechanical properties deteriorated because of the decomposition of the martensite phase and the accumulation and coarsening of carbides when over-tempering occurred at 500 °C for 5 h and 550 °C for 3 h.

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“…Lattice structures are three-dimensional structures consisting of one or more repetitive unit cells (Cheng et al, 2018;Zhang et al, 2018;Feldshtein et al, 2019;Blakey-Milner et al, 2021;Kas and Yilmaz, 2021;Zheng et al, 2021). These structures can be named as cellular solids, cellular metals, cellular foams (Pan et al, 2020), lattice sequences (Didier et al, 2021), porous structures (Łyczkowska et al, 2014) or scaffold structures (Wauthle et al, 2015).…”

Section: Lattice Structuresmentioning

confidence: 99%

A Short and Technical Review on Lattice Structures Produced by Additive Manufacturing

Özdemir

Korkmaz

2023

Prabha Materials Science Letters

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Additive manufacturing (AM), which has only relatively recently emerged as one of the most significant sectors, is currently the subject of a great number of research investigations. In contrast to machining, additive manufacturing (AM) is a process that involves the division of items into very thin layers, followed by the production of these layers by stacking previous layers atop one another. AM has found new application areas because to the decrease in weight as well as other advantages in a variety of industries including aviation, automotive, and biomedical. In this manner, features that cannot be acquired from solid materials have been disclosed through the utilization of various forms of lattice structures in accordance with the needs of the application. The design factors that impact the compression behavior of body-centered cubic (BCC) and face-centered cubic (FCC) type lattice structures, which are the most popular types of lattice structures used in additive manufacturing, were explored in this review work.

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On the evaluation of certain strength characteristics and fracture features of iron-based sintered MMCs with nanooxide additives

Cited by 15 publications

References 36 publications

Corrosion Resistance and Surface Bioactivity of Ti6Al4V Alloy after Finish Turning under Ecological Cutting Conditions

Corrosion Resistance and Surface Bioactivity of Ti6Al4V Alloy after Finish Turning under Ecological Cutting Conditions

Influence of Tempering Temperature and Time on Microstructure and Mechanical Properties of Additively Manufactured H13 Tool Steel

A Short and Technical Review on Lattice Structures Produced by Additive Manufacturing

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