205 research outputs found
Corrosion Behaviour of Zr-Ag Alloys for Dental Implant Application
The electrochemical corrosion behaviour of three Zr-Ag alloys (Zr-1Ag, Zr-3Ag and Zr-5Ag) was investigated. Open circuit potential, linear potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques were employed in aerated artificial saliva (pH = 4.0) at 37Ā°C. Silver alloying additions are found to be effective in enhancing the corrosion resistance of zirconium in artificial saliva environment. In fact, Zr-Ag alloys exhibit higher open circuit potentials, larger breakdown potentials and higher impedance values as compared to cp Zr. This behaviour can be ascribed to the formation of a thicker and more stable passive film with increasing compactness, able to provide better protection against the corrosion attack
Variations of the elastic modulus of automotive steels after yielding
Presentazione orale al convegno TMS 2011 Annual Meeting & Exhibition, svoltosi a San Diego, USA, dal 27/02/2011 al 03/03/201
Electrochemical corrosion behavior of LDX 2101Ā® duplex stainless steel in a fluorideācontaining environment
The effect of fluoride on the electrochemical corrosion behavior of an LDX
2101Ā® duplex stainless steel (DSS) was studied. Openācircuit potential (EOC)
and electrochemical impedance spectroscopy (EIS) measurements were carried
out in artificial saliva and with the addition of fluoride (1 wt% NaF). The
electrochemical corrosion behavior of the AISI 316L austenitic stainless steel
(SS) was also evaluated for comparison. Both openācircuit potential and EIS
results indicate that DSS and austenitic SS undergo spontaneous passivation
due to spontaneously formed oxide film passivating the metallic surface, in the
simulated aggressive environments. However, LDX 2101Ā® exhibits superior
corrosion resistance as compared with AISI 316L, and this improvement is
ascribed to the formation of a passive film which shows a higher protective
effect than the one formed on AISI 316L
Variations of the elastic modulus of automotive steels after yielding
Presentazione orale al convegno TMS 2011 Annual Meeting & Exhibition, svoltosi a San Diego, USA, dal 27/02/2011 al 03/03/201
Microstructural, mechanical and fatigue properties of Cobalt alloys
Presentazione orale al convegno TMS 2010 - 139th Annual Meeting & Exhibition, svoltosi a Seattle (USA) dal 14/02/2010 al 18/02/201
Comparison of Ni-Cr and Co-based alloys for fuel injectors
Presentazione orale al convegno TMS 2011 - 140th Annual Meeting & Exhibition, svoltosi a San Diego, USA, dal 27/02/2011 al 03/03/201
Caratterizzazione di leghe Zama 2 pressocolate in riferimento a fenomeni connessi con l'invecchiamento
Relationships between tensile and fracture mechanics properties and fatigue properties of large plastic mold steel
presentazione oral
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