Biocompatibility and mechanical properties of diamond-like coatings on cobalt-chromium-molybdenum steel and titanium-aluminum-vanadium biomedical alloys

Their excellent properties, such as corrosion resistance, fatigue strength and bio-compatibility, made Cobalt-chromium-molybdenum (CoCrMo) were used in total hip and knee replacements and dental devices. The green CoCrMo compacts specimens in rectangle shape were fabricated by powder pressing technique. The effects of sintering temperature and atmosphere on the mechanical properties and microstructure of the CoCrMo compacts which is sintered at 1300°C-1400°C under two different inert gases sintering atmosphere (Ar2/N2H2) were investigated. The experimental results show that the grain boundaries sizes of CoCrMo compact sintered specimen were increased with increasing sintering temperature. The CoCrMo compacts specimens sintered at 1350°C under inert gases N2H2 atmosphere possess highest density (8.096 g/cm3) and hardness (327.1Hv). However, when the compacts specimens are sintered at 1400°C, the density (7.596 g/cm3) and hardness (320 Hv) properties of sintered compact were decreased.

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Structure and mechanical properties of HIP molybdenum-steel bimetal

Deformation and Fracture of Materials ◽

10.31044/1814-4632-2019-5-27-32 ◽

2019 ◽

pp. 27-32

Author(s):

D.N. Makhina ◽

◽

V.N. Denisov ◽

Yu.S. Perminova ◽

V.N. Butrim ◽

...

Keyword(s):

Mechanical Properties ◽

Molybdenum Steel

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UGI KC35N

Alloy Digest ◽

10.31399/asm.ad.co0124 ◽

2014 ◽

Vol 63 (12) ◽

Keyword(s):

Corrosion Resistance ◽

Shear Strength ◽

Physical Properties ◽

Heat Treating ◽

Molybdenum Alloy ◽

Cobalt Chromium ◽

Austenitic Structure ◽

Nickel Cobalt ◽

Cobalt Chromium Molybdenum

Abstract UGI KC35N is a nonmagnetic nickel-cobalt-chromium-molybdenum alloy with a fully austenitic structure. This datasheet provides information on composition, physical properties, elasticity, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Co-124. Producer or source: Schmolz + Bickenbach USA Inc..

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Specification for nickel-cobalt-chromium-molybdenum-titanium-aluminium heat-resisting alloy cold worked solution treated seamless tubes (nickel base, Co 20, Cr 20, Mo 5.9, Ti 2.1, Al 0.5)

10.3403/00118776 ◽

1973 ◽

Keyword(s):

Cobalt Chromium ◽

Nickel Cobalt ◽

Solution Treated ◽

Cold Worked ◽

Nickel Base ◽

Cobalt Chromium Molybdenum ◽

Titanium Aluminium

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Effect of nickel on formation of transition layer during liquid-phase aluminizing of titanium

10.36652/1813-1336-2020-16-7-313-317 ◽

2020 ◽

pp. 313-317

Author(s):

A.I. Kovtunov ◽

Yu.Yu. Khokhlov ◽

S.V. Myamin

Keyword(s):

Mechanical Properties ◽

Liquid Phase ◽

Intermetallic Layer ◽

Reaction Diffusion ◽

Strength Properties ◽

Effect Of Temperature ◽

Nickel Concentration ◽

Aluminum Melt ◽

Titanium Aluminum ◽

Titanium Foam

Titanium—aluminum, titanium—foam aluminum composites and bimetals obtained by liquid-phase methods, are increasingly used in industry. At the liquid-phase methods as result of the reaction diffusion of titanium and aluminum is formed transitional intermetallic layer at the phase boundary of the composite, which reduces the mechanical properties of titanium and composite. To reduce the growth rate of the intermetallic layer between the layers of the composite and increase its mechanical properties, it is proposed to alloy aluminum melt with nickel. The studies of the interaction of titanium and molten aluminum alloyed with nickel made it possible to establish the effect of temperature and aluminizing time on the thickness, chemical and phase compositions of the transition intermetallic layer. The tests showed the effect of the temperature of the aluminum melt, the nickel concentration on the strength properties of titanium—aluminum bimetal.

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Prediction of tool-wear in turning of medical grade cobalt chromium molybdenum alloy (ASTM F75) using non-parametric Bayesian models

Journal of Intelligent Manufacturing ◽

10.1007/s10845-017-1317-3 ◽

2017 ◽

Vol 30 (3) ◽

pp. 1259-1270 ◽

Cited By ~ 7

Author(s):

Damien McParland ◽

Szymon Baron ◽

Sarah O’Rourke ◽

Denis Dowling ◽

Eamonn Ahearne ◽

...

Keyword(s):

Tool Wear ◽

Bayesian Models ◽

Molybdenum Alloy ◽

Cobalt Chromium ◽

Astm F75 ◽

Cobalt Chromium Molybdenum ◽

Medical Grade ◽

Non Parametric

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The effects of casting techniques on the mechanical properties of a dental cobalt-chromium alloy

Journal of Materials Science ◽

10.1007/bf00737848 ◽

1974 ◽

Vol 9 (3) ◽

pp. 464-468 ◽

Cited By ~ 4

Author(s):

J. Scott ◽

J. F. Bates

Keyword(s):

Mechanical Properties ◽

Chromium Alloy ◽

Cobalt Chromium ◽

Cobalt Chromium Alloy

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Surface treatment on cobalt and titanium alloys using picosecond laser pulses in burst mode

Applied Physics A ◽

10.1007/s00339-020-04179-w ◽

2020 ◽

Vol 127 (1) ◽

Author(s):

Daniel Metzner ◽

Peter Lickschat ◽

Steffen Weißmantel

Keyword(s):

Surface Treatment ◽

Picosecond Laser ◽

Laser Pulses ◽

Laser Source ◽

Time Interval ◽

Cobalt Chromium ◽

Burst Mode ◽

Self Organized ◽

Implant Alloys ◽

Cobalt Chromium Molybdenum

AbstractThe authors report on the results of surface treatment experiments using a solid-state amplified laser source emitting laser pulses with a pulse duration of 10 ps. The laser source allows the generation of pulse trains (bursts) with an intra-burst pulse repetition rate of 80 MHz (pulse-to-pulse time interval about 12.5 ns) with up to eight pulses per burst. In this study a wavelength of 1064 nm was used to investigate both ablation of material and laser-induced surface modifications occuring in metallic implant alloys CoCrMo (cobalt-chromium-molybdenum) and TiAlV (titanium-aluminum-vanadium) in dependence of the number of pulses and fluences per pulse in the burst. By using the burst mode, a smoothing effect occurs in a certain parameter range, resulting in very low surface roughness of the generated microstructures. It is demonstrated that at fluences per pulse which are smaller than the material-specific ablation threshold, a self-organized pore formation takes place if a defined number of pulses per burst is used. Thus, the advantage of the MHz burst mode in terms of a possible surface modification is established.

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