Zobrazeno 1 - 10
of 20
pro vyhledávání: '"G W, SIMMONS"'
Publikováno v:
Antibioticschemotherapy (Northfield, Ill.). 3(10)
Autor:
A. C. Miller, G. W. Simmons
Publikováno v:
Surface Science Spectra. 2:55-60
High energy resolution spectra of high purity Cu foil that was scraped in situ are presented. The experimental width (16%–84% measurement) of the Fermi level of nickel obtained under identical experimental conditions was 0.32 ± 0.02 eV. The bindin
Autor:
A. C. Miller, G. W. Simmons
Publikováno v:
Surface Science Spectra. 1:312-317
High energy resolution XPS spectra of sputter cleaned Ni (2 keV, Ar+1) are presented. The experimental width (16%–84% measurement) of the Fermi level was 0.32 ± 0.02 eV. The energy scale calibration is based on the Fermi level.
Publikováno v:
Journal of Engineering Materials and Technology. 101:199-204
Steels used in coal gasification vessels and piping (externals) can be exposed to mixtures of hydrogen, water vapor (steam), hydrogen sulfide, methane, carbon monoxide, carbon dioxide, and other gases at temperatures and pressures up to 600°K and 10
Publikováno v:
Metallurgical Transactions A. 9:1147-1158
Coordinated fracture mechanics and surface chemistry experiments were carried out to develop further understanding of environment enhanced subcritical crack growth in high strength steels. The kinetics of crack growth were determined for an AISI 4340
Publikováno v:
Metallurgical Transactions A. 12:805-811
Parallel fracture mechanics and surface chemistry studies were carried out to develop further understanding of environment assisted subcritical crack growth in high strength steels. The kinetics of crack growth for an AISI 4340 steel (tempered at 477
Autor:
R. P. Wei, G. W. Simmons
Publikováno v:
International Journal of Fracture. 17:235-247
Metal fatigue has been well recognized as an important cause for failure of engineering structures. In most applications, fatigue damage results from the conjoint actions of the cyclically applied stress and the external (chemical) environment, and i
Autor:
R.P. Wei, G. W. Simmons
Publikováno v:
Scripta Metallurgica. 10:153-157
Publikováno v:
Metallurgical Transactions A. 11:151-158
Fracture mechanics and surface chemistry studies were carried out to develop further understanding of the influence of water vapor on fatigue crack growth in aluminum alloys. The room temperature fatigue crack growth response was determined for 2219-
Publikováno v:
Scripta Metallurgica. 14:357-364