Zobrazeno 1 - 10
of 105
pro vyhledávání: '"M. H. Jacobs"'
Autor:
M. H. Jacobs, Bill Zenoni
Publikováno v:
Informes de la Construccion, Vol 12, Iss 110, Pp 93-94 (1959)
Otros cuatro tramos están formados de vigas prefabricadas de hormigón armado, de 7,60 m de longitud, que junto con sus soportes de cuatro columnas constituyen una especie de torre. El tramo sobre el canal tiene 49 m de luz; y sus vigas son metálic
Externí odkaz:
https://doaj.org/article/7e4d15134fbc495d9fe35603618d1263
Publikováno v:
Metallurgical and Materials Transactions A. 39:2981-2989
In order to study the effect of variation in process parameters on the final ingot of INCONEL 718 during vacuum arc remelting, a 508-mm-diameter vacuum arc remelting (VAR) ingot of INCONEL 718 was produced under conditions of variation in electrode d
Autor:
R. M. Ward, M H Jacobs
Publikováno v:
Journal of Materials Science. 39:7135-7143
Novel instrumentation and computer modelling are described which have been developed to detect and interpret current flows and magnetic fields during VAR. Results from different operating conditions during VAR of 20″ diameter ingots of INCONEL 718
Publikováno v:
Journal of Materials Science. 39:7259-7267
Centrifugal spray deposition, the atomisation of a liquid metal by centrifugal force and the subsequent collection of the atomised droplets on a reciprocating collector, is currently being developed for the production of high performance Fe, Ni and T
Publikováno v:
Journal of Materials Science. 39:7169-7174
A 20 inch diameter VAR ingot of Inconel 718 was produced at Special Metals Wiggin Limited (Hereford) under conditions of abnormally long arc gap. It was sectioned and analyzed in the as-cast state. White spots were found, along with unusual macrostru
Publikováno v:
Materials Science and Engineering: A. 383:69-77
Centrifugal spray deposition (CSD) is explored as an alternative route for manufacturing ring-shaped pre-forms for casings in gas turbines. CSD offers metallurgical and economic benefits compared with conventional routes. Research centred on optimisi
Publikováno v:
Scopus-Elsevier
In the production of turbine discs, the final wrought structure is critically dependent on aspects of the ingot grain structure produced by vacuum arc remelting (VAR) prior to cogging and forging. Variations in the as-cast grain structure in the nick
Publikováno v:
Surface Engineering. 16:107-115
Two TiAl based intermetallic alloys, Ti–48Al–2Mn–2Nb and Ti–45Al–2Mn–2Nb + 1 at.-%TiB2 , were nitrided at high gas pressures using a conventional hipping facility under a range of process conditions. Detailed microstructural characterisat
Publikováno v:
Modelling and Simulation in Materials Science and Engineering. 8:55-65
This paper describes a simplified numerical model which is used to calculate the height distribution, and the radial and tangential velocities of a liquid on a rotating disk after a hydraulic jump and prior to centrifugal atomization. The results obt
Publikováno v:
Powder Metallurgy. 42:243-249
In the present paper the microstructure and properties of a range of hipped Stellite powders are investigated, the basic aim of the study being to generate a materia/property database to facilitate alloy selection for potential applications involving