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2021420 · This work presents the new comparative results of Co–Cr alloys, including the surface hardness, mechanical and electrochemical corrosion properties. Two types of
contact2010713 · CoCr alloy surfaces are known to oxidize with the formation of stable Cr2O3 protecting films. However, the inherent mechanisms initiating the selective
contact202011 · In CoCr alloys, cobalt serves as the base FCC (face-centered-cubic, α-Co) crystal structure of these alloys. On its own, it is known to have low stacking fault energy
contact202092 · 4. Indicative Values only from literature for alloy within same chemical limits and various manufacturing techniques & Heat treatments (e.g. wrought, casting, MIM,
contact201511 · In this chapter, first, the history and current status of biomedical Co-Cr alloys such as Co-28Cr-6Mo and Co-20Cr-15W-10Ni alloys are reviewed. Their microstructure,
contact2016612 · 1b.1 Introduction. Cobalt-chromium (CoCr) alloys have been extensively used for making various orthopedic, dental, and cardiovascular implants and devices.
contact2021513 · Chemical compositions of CoCr x Ni alloys measured by EPMA are shown in Table 1, which are close to the nominal compositions.The microstructures of the fully
contact2019325 · DSMA-0001.1 – CoCr Alloy Powders for Additive Manufacturing ©2016 Oerlikon Metco 2 2 Material Information 2.1 Chemical Composition Product Weight
contact20141210 · CoCr alloy is commonly used in various cardiovascular medical devices for its excellent physical and mechanical properties. However, the formation of blood
contact2021620 · Cobalt chromium molybdenum (CoCrMo) alloys categorized as great material in many engineering fields of applications such as biomedical, aero-engine, gas
contact20161021 · Another classification of the Co-Cr alloys focuses on Ni content. The Ni content in ASTM F 75 alloy is required to be less than 0.5 mass%, and the Ni contents in ASTM F 799 and F 1537 alloys are required to be less than 1.0mass%. Other Co-Cr alloys such as ASTM F 90 (Co-20Cr-15W-10Ni), ASTM F 562 (Co-35Ni-20Cr-10Mo), and
contactASTM F75 CoCr Alloy - Detail. ASTM F75 CoCr is a non-magnetic Cobalt Chrome alloy exhibiting high temperature capability, strength, corrosion resistance, wear resistance as well as excellent biocompatibility. CoCr
contactNon-precious alternative for low fusing ceramic. Excellent melting and casting behavior with all melting and casting techniques. Easy preparation and polishing. Free from nickel and beryllium. For universal use for crowns and bridges, fixed/removable restorations. Good laser welding properties. Instructions for use.
contactCobalt Chromium is one of numerous metal alloys sold by American Elements under the trade name AE Alloys™. Generally immediately available in most volumes, AE Alloys™ are available as bar, ingot, ribbon, wire, shot, sheet, and foil. Ultra high purity and high purity forms also include metal powder, submicron powder and nanoscale, targets ...
contact202118 · Brief Summary: In the current prospective, randomized study, two different materials of the same total knee arthroplasty (TKA) system - cobalt-chromium (CoCr) and titanium-nitride (TiN) - are going to be compared with regards to postoperative outcome. Two-hundred patients are planned to be included in the study over a 4-year period,
contact20211019 · Cobalt-chromium (CoCr) alloys are widely known for their biomedical applications due to their numerous favorable characteristics. The fabrication process for these alloys is crucial and plays an important role in the mechanical and metallurgical properties. Powder bed fusion (PBF) is a type of additive manufacturing technique, which
contact2020530 · UNS R30075 (ASTM F75, ISO 5832-4) Co-Cr-Mo Alloy. R30075 cobalt is a cobalt alloy. ASTM F75 is the defining standard for this material. R30075 is the UNS number. The properties of R30075 cobalt include three common variations. This page shows summary ranges across all of them. For more specific values, follow the links
contactThis opened new possibilities for the use of titanium-alloys with improved properties (E-module). The aim of this study was to summarise the use of titanium in removable prosthodontics and to evaluate prospectively the use of the Ti6A17Nb-alloy for RPDs in a small group of patients. Two identically designed RPDs from CoCr-alloy (remanium GM
contact20141115 · Cobalt-chromium (CoCr) particles in the nanometre size range and their concomitant release of Co and Cr ions into the patients' circulation are produced by wear at the articulating surfaces of metal-on-metal (MoM) implants. ... CoCr wear particles generated from CoCr alloy metal-on-metal hip replacements, and cobalt ions stimulate apoptosis
contactThe machinability of hard-to-cut CoCr alloys manufactured by Selective Laser Melting (SLM) technology is not yet sufficiently studied. Therefore, this work focuses on evaluation of surface texture formation during face turning of CoCr alloy. As part of the research, two specimen types were subject to comparison: made with the application of conventional
contact2023224 · Figure 5 shows the porosity appearance of the CoCr alloy printed from virgin powder on a 2D surface (a) and a 3D microCT image (b), as well as for the same alloy printed from reused powder (2D ...
contact20201126 · Titanium surface coating on cobalt-chromium (CoCr) alloy has characteristics desirable for an orthopedic implant as follows: strength, osteointegrative capability, and biocompatibility. Creating such a coated surface takes a challenging process and two dissimilar metals are not easily welded. In our study, we utilized additive
contact2019927 · The maximum von Mises stresses of the CoCr alloy, Ti alloy and PEEK framework were 375.48 ± 39.31 MPa, 240.17 ± 67.52 MPa and 99.54 ± 16.98 MPa (mean ± SD) respectively.
contact2011328 · Musculoskeletal disorders are a leading cause of long‐term disability and affect hundreds of millions of people worldwide. 1 A key challenge of biomedical engineering is to accelerate remodeling and integration of implants in the body. Most metallic orthopedic implants are made from a mixture of alloys. 2 Cobalt chromium (CoCr) is one of the most
contactThe machinability of hard-to-cut CoCr alloys manufactured by Selective Laser Melting (SLM) technology is not yet sufficiently studied. Therefore, this work focuses on evaluation of surface texture formation during face turning of CoCr alloy. As part of the research, two specimen types were subject to comparison: made with the application of conventional
contact2020106 · Co-Alloy CoCr28Mo6 / 2.4979 / F75[1] The properties and mechanical characteristics apply to powder that is tested and sold by SLM Solutions, and that has been processed on SLM Solutions machines using the original SLM Solutions parameters in compliance with the applicable operating instructions
contact202033 · CoCr alloy Laser polishing Surface roughness Contact angle Wettability ABSTRACT Laser polishing treatment on 3D printed metal components has attracted great attention due to the potential applications in the dental implant and jewelry fields. In this study, cobalt-chromium (CoCr) alloys were polished
contactNon-precious alternative for low fusing ceramic. Excellent melting and casting behavior with all melting and casting techniques. Easy preparation and polishing. Free from nickel and beryllium. For universal use for crowns and bridges, fixed/removable restorations. Good laser welding properties. Instructions for use.
contact20161021 · Another classification of the Co-Cr alloys focuses on Ni content. The Ni content in ASTM F 75 alloy is required to be less than 0.5 mass%, and the Ni contents in ASTM F 799 and F 1537 alloys are required to be less than 1.0mass%. Other Co-Cr alloys such as ASTM F 90 (Co-20Cr-15W-10Ni), ASTM F 562 (Co-35Ni-20Cr-10Mo), and
contact201831 · spectrometry (ICP-MS) have been used to test the stability of the alloy in the chosen environments. The kinetic parameters have been calculated using two methods. Based on experimental results one can say that the CoCr alloy Diadur show a low corrosion rate in the chosen media due to oxide coating formation on the alloy surface.
contact201745 · In this work, the selective laser melting (SLM) of CoCr alloy powder for producing cardiovascular stents is investigated. The paper aims to assess the feasibility of producing a CoCr stent precursor through SLM as an alternative method to the conventional manufacturing cycle, which is based on microtube production and consecutive laser
contact202048 · Friction and wear behaviors of CoCr matrix alloys depended on the hardness, microstructure, phases, alloying elements and temperature. The Ni-rich phase, W-rich and Mo-rich solid solutions could sustain external load. Cr 2 WO 6, WO 3 and CoWO 4 had the hard and brittle nature. During sliding, these compounds could more easily
contact2022316 · CoCr alloy, low alloy steel, and HCCI were selected as counter materials, considering their wide-ranging uses in various applications such as impeller bearings, automotive components, and industrial pumps [12,13,14].The counter specimens were prepared in a plate shape with dimensions of 20 \(\times\) 35 \(\times\) 5 mm. Prior to the
contact2018319 · The ε-phase in the CoCr alloy would account for reducing both abrasive and fatigue wear. Moreover, the Cu-bearing alloy presented relatively higher corrosion potential E corr and lower corrosion current density I corr compared to the Cu-free alloy. Accordingly, 3 wt.% Cu addition plays a key role in enhancing the wear resistance and
contact20201126 · Titanium surface coating on cobalt-chromium (CoCr) alloy has characteristics desirable for an orthopedic implant as follows: strength, osteointegrative capability, and biocompatibility. Creating such a coated surface takes a challenging process and two dissimilar metals are not easily welded. In our study, we utilized additive
contact20201118 · Cobalt-chromium (CoCr) alloys offer outstanding wear resistance when compared to other biocompatible metallic materials and are extensively used in articulating surfaces of total hip and knee arthroplasty. However, CoCr alloys' biocompatibility is known to be inferior to titanium (Ti). Wear- and cor
contact20141210 · CoCr alloy is commonly used in various cardiovascular medical devices for its excellent physical and mechanical properties. However, the formation of blood clots on the alloy surfaces is a serious concern. This research is focused on the surface modification of CoCr alloy using varying concentrations (1, 25, 50, 75, and 100 mM) of phosphoric
contactbetween PAP–CoCr disks and PMMA was measured using a tensile test machine (H25K-S, Tinius Olsen Testing Machine Co., Inc Willow Grove, PA) set up at a constant speed of 10 mm min 1. The specimens were loaded in the machine as Fig. 1 (A) Potentiodynamic curve of CoCr alloy in HCl (0.5 M). The pictures show the visual appearance of CoCr 0.5 V, CoCr
contact2020106 · Co-Alloy CoCr28Mo6 / 2.4979 / F75[1] The properties and mechanical characteristics apply to powder that is tested and sold by SLM Solutions, and that has been processed on SLM Solutions machines using the original SLM Solutions parameters in compliance with the applicable operating instructions
contact201532 · gasketed test for a duration of ten days, the alloy was observed to degrade at a rate of 0.03 mg/cm 2 /day (Kuhn 1981). Degradation Properties/Mechanisms According to the Summary of Safety and Effectiveness Data for the Multi-Link Vision Stent, the corrosion resistance of the L-605 CoCr alloy tubing used to fabricate the stent is
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