Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Tawfik M. Ahmed"'
Publikováno v:
Materials & Design. 30:2425-2430
The potentiodynamic polarization behavior of copper alloys in chloride solutions (1 M NaCl) of different pH’s (6.5 and 10) was investigated. Three commercial alloys of nominal composition Cu–30Ni (Cu–Ni), Cu–30Zn (Cu–Zn) and 90Cu–8Al–2F
Publikováno v:
Engineering Failure Analysis. 16:1432-1441
Sherritt International Corporation experienced corrosion failures with the 316L stainless steel tubing in a high-pressure still condenser employed for ammonia recovery. A detailed failure analysis was conducted on the condenser tubing to determine th
Autor:
Khlefa A. Esaklul, Tawfik M. Ahmed
Publikováno v:
Engineering Failure Analysis. 16:1195-1202
Adequate strength and resistance to corrosion and environmentally assisted cracking are the key elements in selection of fasteners for offshore and subsea systems. Not only proper material selection is of paramount importance but also proper material
Publikováno v:
Corrosion Science. 49:694-710
New Pourbaix diagrams were calculated at 25, 75 and 95 °C for the Nb–H2O system. The species Nb(OH) 4 + and NbO 3 - were considered. Potentiodynamic polarization and mass loss experiments (14 days) were conducted in concentrated H2SO4 (20, 40 and
Autor:
Desmond Tromans, Tawfik M. Ahmed
Publikováno v:
International Journal of Fatigue. 26:641-649
The effects of load ratio (R) in the range of 0.1–0.9 on fatigue threshold behavior of three α-phase copper alloys were studied. Three commercial alloys of nominal composition Cu–30Ni, Cu–30Zn and 90Cu–7Al–2Fe were tested. Threshold values
Near-Threshold Fatigue Behavior of Copper Alloys in Aqueous Solutions: A High Cyclic Frequency Study
Autor:
Desmond Tromans, Tawfik M. Ahmed
Publikováno v:
CORROSION. 59:867-880
The near-threshold fatigue crack propagation behavior of α-phase Cu alloys in desiccated air and several aqueous environments has been investigated. Three commercial alloys of nominal comp...
Autor:
Tawfik M. Ahmed, Desmond Tromans
Publikováno v:
Journal of The Electrochemical Society. 145:601-608
A combination of thermodynamic analyses and potentiodynamic polarization tests have been used to study the anodic behavior of Cu in strong H{sub 2}SO{sub 4} solutions in the concentration range 1--10 M. The studies were supplemented by chemical analy
Publikováno v:
CORROSION. 53:581-590
An experimental investigation was carried out to measure transgranular stress corrosion crack growth rates (CGR) in precracked X-60 steel specimens exposed to neutral (pH 7) dilute simulated ground water (designated NS4) while being cyclically loaded