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202011 · 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 that results in relatively high strength and work-hardening rates, low damage under cyclic loading, and the ability to absorb stresses through an FCC-HCP (hexagonal closed
contact202171 · Hydrogen peroxide (H 2 O 2) was utilized as a strong oxidizing agent to accelerate the oxidation of the cobalt-chromium (CoCr) alloy during the plasma electrolytic polishing (PEP) process, resulting in the growth of a chromium oxide layer.From the TEM results showing the increased thickness of the oxide film, it was obvious that the dose of
contact202011 · For biomedical purpose, two of the commonly used alloys are Ti and CoCr. This is mainly due to their high corrosion resistance and long term stability under highly-reactive in vivo conditions and excellent mechanical properties . Ti and Co specifically are labelled as passive materials as they generate a thin metal oxide barrier of roughly 1 ...
contact201211 · Various CoCr alloys (Wironit, Vitallium, and Wironium) that were immersed for 2 months in solution containing 9 g l –1 NaCl in an open beaker at 37°C showed only minimal corrosion (less than 0.2 ppm) . Although the alloy was not susceptible to stress corrosion, crevice and pitting corrosion were observed. Co-based alloys become more ...
contact2010713 · CoCr alloy surfaces are known to oxidize with the formation of stable Cr2O3 protecting films. However, the inherent mechanisms initiating the selective oxidation of one component, commonly observed in most metal alloys exposed to an oxidizing environment, are still largely unknown. Here we present a study of the early oxidation
contact2016612 · 1b.1 Introduction. Cobalt-chromium (CoCr) alloys have been extensively used for making various orthopedic, dental, and cardiovascular implants and devices. These alloys possess superior mechanical properties with high resistance to corrosion, wear, and fatigue. The biocompatibility and blood compatibility of these alloys have also been well ...
contact2021620 · Cobalt chromium molybdenum (CoCrMo) alloys categorized as great material in many engineering fields of applications such as biomedical, aero-engine, gas turbine and nuclear [] which requires wear, heat and corrosion resistant [].In biomedical applications, due to outstanding properties of biocompatibility and wear resistance,
contactBased on the EDS spectral analysis, the metallic material under investigation used for 3D printing orthodontic appliances is a typical Co-Cr alloy like those used for manufacturing fixed ...
contact2019311 · It is reported that the CoCr alloy processed by SLM has a dual-phase microstructure consisting of γ-fcc phase and ε-hcp phase and exhibits strain-induced martensite transformation (SIMT) from the pre-existing γ phase to ε phase during plastic deformation [7]. Although it is known that the ε phase is detrimental to ductility, the
contact2010713 · CoCr alloy surfaces are known to oxidize with the formation of stable Cr2O3 protecting films. However, the inherent mechanisms initiating the selective oxidation of one component, commonly observed in most metal alloys exposed to an oxidizing environment, are still largely unknown. Here we present a study of the early oxidation
contact2021716 · Alloy ingots with nominal composition of Co 0.5 CrFeNi, CoCrFeNi, CoCr 0.5 FeNi, CoCrFe 0.5 Ni were synthesized by melting appropriate mixtures of high-purity (>99.95%) constituent elements at least 4 times in Ar at high temperature in an electric arc furnace to ensure chemical homogeneity. To study the effects of heat treatment,
contact202092 · 4. Indicative Values only from literature for alloy within same chemical limits and various manufacturing techniques & Heat treatments (e.g. wrought, casting, MIM, etc) 5. Ref: MIL-STD-889 (Dissimilar Metals), several literature reference (Biomedical & Aerospace applications of CoCr alloys) *NOTES Let’s Build Anything Together
contact201533 · Co-Cr-Mo alloy samples, fabricated using Laser Engineered Net Shaping – a laser-based additive manufacturing technology, have been subjected to heat treatment to study its influence on microstructure,
contactBackground: The use of titanium alloy (Ti) rods is frequently associated with rod fracture after spinal fixation. To address this issue, cobalt chrome (CoCr) rods, which are advantageous because of their greater strength and resistance to fatigue relative to Ti rods, have been introduced.
contact2019325 · DSMA-0001.1 – CoCr Alloy Powders for Additive Manufacturing ©2016 Oerlikon Metco 2 2 Material Information 2.1 Chemical Composition Product Weight Percent (nominal) Co Cr Mo C Other MetcoAdd 75A Balance 28 6 < 0.2 < 1.0 MetcoAdd 76A Balance 29 6 < 0.12 ≤ 0.1 MetcoAdd 78A Balance 29 6 < 0.06 < 1.0 2.2 Particle Size
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
contact3D Printing with CoCr. Cobalt-based alloys are used for manufacturing tools that are applied for injection molding of plastic parts using 3D printing. The excellent material qualities and high hardness of the material allow
contactASTM F75 CoCr Alloy Superalloys Applications and Specifications. 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 alloys are widely used within the orthopedics, aerospace, power generation and the dental fields.
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
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
contact201533 · Co-Cr-Mo alloy samples, fabricated using Laser Engineered Net Shaping – a laser-based additive manufacturing technology, have been subjected to heat treatment to study its influence on microstructure,
contact2018210 · Incorporation of as little as 0.04% Zr into the CoCr alloy can significantly improve the biomechanical anchorage of constructs fabricated by EBM. Here we investigate bone material properties, including microstructure and composition, adjacent to 3D printed CoCr implants with and without addition of 0.04% Zr, after 8 weeks of healing in the ...
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 ...
contact2008130 · Now presently I am looking for stent Descaling Process (to remove the metal oxide created after Laser Cutting), Annealing (to refine the grain size, hardness and elongation), Electropolishing (for bright &
contact3D Printing with CoCr. Cobalt-based alloys are used for manufacturing tools that are applied for injection molding of plastic parts using 3D printing. The excellent material qualities and high hardness of the material allow
contactCoCr/sub 15/Pt/sub 13/ perpendicular layers with CoCr-alloy/Ti dual underlayers were annealed and it was investigated how the dual underlayer structure influences the characteristics of the CoCrPt perpendicular layer. The Ti layer thickness has a remarkable influence on the Cr diffusion efficiency from the upper underlayer of the dual underlayer
contact2019927 · The maximum von Mises stress of the PDL of CoCr alloy, Ti alloy, PEEK groups were 0.17 ± 0.01 MPa, 0.15 ± 0.02 MPa, 0.12 ± 0.01 MPa respectively (mean ± SD), indicating significant difference ...
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
contact201991 · Aluminum oxide (Al2O3) powder can be added to typical cobalt-chromium (CoCr) alloy powders. In the present study, we successfully prepared alloyed samples of various powder ratios by laser cladding and analyzed their microstructure and carbide structural characteristics, including the microhardness, biological properties, morphology
contact2015318 · However, thin strut stents especially from CoCr-alloys are not indisputable. In recent investigations significantly higher acute elastic recoil was observed for thin strut CoCr-stents . The authors compared 316L steel stents with a strut thickness of 135 μm, PtCr stents and CoCr stents, both with strut thicknesses of 81 μm.
contact2019325 · DSMA-0001.1 – CoCr Alloy Powders for Additive Manufacturing ©2016 Oerlikon Metco 2 2 Material Information 2.1 Chemical Composition Product Weight Percent (nominal) Co Cr Mo C Other MetcoAdd 75A Balance 28 6 < 0.2 < 1.0 MetcoAdd 76A Balance 29 6 < 0.12 ≤ 0.1 MetcoAdd 78A Balance 29 6 < 0.06 < 1.0 2.2 Particle Size
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 ...
contact2008130 · Now presently I am looking for stent Descaling Process (to remove the metal oxide created after Laser Cutting), Annealing (to refine the grain size, hardness and elongation), Electropolishing (for bright &
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
contactASTM F75 CoCr Alloy Superalloys Applications and Specifications. 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 alloys are widely used within the orthopedics, aerospace, power generation and the dental fields.
contact201641 · Arcam ASTM F75 is a non-magnetic CoCrMo alloy exhibiting high strength, corrosion resistance, and excellent wear resistance. It is widely used for orthopaedic and dental implants. Highly polished compo-nents include femoral stems for replacement hips and knee condyles. Other cobalt medical implants include acetabular cups and tibial trays.
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