Texture strengthening in high-temperature applications such as heat-exchanger materials

Cette publication n'est pas offerte dans votre langue; certains de ses renseignements ont été préremplis pour la version française.
Mots clés : Technology;Metallurgical sciences;Strengthening;Texture strengthening;Heat exchangers;Shear;Stress;Plastic flow;Yield strength;Alloys;Titanium alloys;Zirconium alloys;Copper sheet;Cupro-nickel sheet;Aluminum wire
Accés complet à Document technique
Version PDF pour 20,00 $
Recherche
Trier par :  Pertinence
Affichage des résultats 1 - 8
Texte
Sommaire: This paper discusses the changing nature of reserve/consumption ratios, using data from Canadian operations and focus-sing particularly on copper.
Publication: CIM Bulletin
Auteur(s): F.-W. WELLMER
Mots clés: Mineral economics, Reserves, Consumption, Copper deposits, Production, Lead, Zinc.
Numéro: 831
Volume: 74
Année: 1981
Texte
Sommaire: The recent development of the continuous casting process for steel has required basic understanding in a number of areas in the metallurgcal sciences. In some areas, information is still lacking. The success of the application of basic knowledge and research to the process is evidenced by the fact that a large percentage of the steel now produced in the world is produced by continuous casting.A number of areas in which metallurgical science has contributed and is currently contributing to...
Publication: CIM Bulletin
Auteur(s): F. WEINBERG
Mots clés: Technology, Metallurgical sciences, Casting, Continuous casting, Steel, Heat transfer, Fluid flow, Solidification, Strength, Ductility.
Numéro: 831
Volume: 74
Année: 1981
Texte
Sommaire: In describing the alteration of porphyry systems, the term "secondary K-feldspar" appears to be an oversimplification. A better term would be "alkali feldspar" alteration, because in actual fact the replacement feldspars show gradational changes from an albite, which is important in some systems, to an alkali feldspar containing minor orthoclase molecule, to true orthoclase.There are several textural varieties of secondary alkali feldspar present in the porphyry systems...
Publication: CIM Bulletin
Auteur(s): CRAIG H. B. LEITCH
Mots clés: Mineralogy, Feldspars, Alkali feldspars, Porphyry systems, Alteration, Mineralization, Exploration, Albite, Orthoclase.
Numéro: 831
Volume: 74
Année: 1981
Texte
Sommaire: The need to make repairs is seldom a major consideration in the design, fabrication and installation of major components of electrical generation plants. Repair welding, however, is a fact of life in the electrical generation industry, for restoration of degradation in service, from cavitation of hydraulic turbine runners, to corrosion and fatigue damage in pressure vessels. In making weld repairs to carbon and low-alloy steels, the largest source of trouble is hydrogen embrittlement and...
Publication: CIM Bulletin
Auteur(s): W.H.S. LAWSON, D. MILLS
Mots clés: Technology, Metallurgical sciences, Welding, Repair welding, Power plants, Hardness
Numéro: 831
Volume: 74
Année: 1981
Texte
Sommaire: Nuclear power reactors using zirconium alloy pressure tubes generate electricity in several countries. Such reactors are particularly important in Ontario, where CANDUs generate about 30% of the total electricity produced in the Province. Starting with the commitment of NPD-2 in 1956, the pressure tubes of the first five CANDU reactors were made of cold-worked Zircaloy-2, an alloy of Zr and Sn. This alloy was developed by the US Navy, but the decision to use it in a cold-worked condition was...
Publication: CIM Bulletin
Auteur(s): C.E. ELLS, W. EVANS
Mots clés: Technology, Metallurgical sciences, Pressure tubes, Reactors, CANDU reactor, Alloys, Zircaloy, Niobium.
Numéro: 831
Volume: 74
Année: 1981
Texte
Sommaire: Cryogenic engineering is concerned with components and machines which operate for long periods of time at temperatures within a few degrees of absolute zero. The absence of a ductile-brittle transition is thus the prime component of the specification for a suitable low-temperature alloy. The word "cryo" means "frost-forming", and this leads to the second component of the alloy specification, which is resistance to corrosion in humid atmospheres. Further, although most...
Publication: CIM Bulletin
Auteur(s): H.W. KING
Mots clés: Technology, Metallurgical sciences, Stainless steels, Cryogenics, Phase equilibrium, Ferromagnetic transitions, Alloys, Magnetization, Steel.
Numéro: 831
Volume: 74
Année: 1981
Texte
Sommaire: Most unconformity-type uranium deposits in Saskatchewan occur within a few tens of metres above and/or below the basal unconformity of the 1.45-b.y. Athabasca Sandstone. Graphitic basement rocks coincident with post-Athabasca faulting or brecciation at or near the unconformity are important in localizing uranium deposits which form as tabular, ribbon-like bodies with grades averaging over 2 per cent uranium and containing up to 50,000 tonnes U3O8. Some of these deposits have similar contents...
Publication: CIM Bulletin
Auteur(s): L.A. CLARK, G.H.R. BURRILL
Mots clés: Ore genesis, Uranium ore, Saskatchewan, Australia, Exploration, Jabiluka deposits, Ranger deposits, Rabbit Lake deposit, Midwest deposit, Key Lake deposit, Alligator Rivers deposits.
Numéro: 831
Volume: 74
Année: 1981
Texte
Sommaire: A semi-continuous belt of Aphebian magnesian extrusive and related subvolcank rocks has been delineated by the authors over a distance of 150 kilometres in the central La Ronge lithostructural domain in Saskatchewan. They range in composition from peridotite to basalt and attain true thicknesses of up to 800 metres. For the most part, they are confined to a basal position in the La Ronge/Wasekwan metavolcanic sequence, and appear to have been extruded onto sialic crust. However, at Lynn Lake,...
Publication: CIM Bulletin
Auteur(s): J.S. FOX, W.G.Q. JOHNSTON
Mots clés: Volcanics, Magnesian volcanics, Waddy Lake, Reindeer Lake, Agassiz Mine, Exploration, Nickel exploration, Gold exploration, La Ronge area, Saskatchewan, Manitoba.
Numéro: 831
Volume: 74
Année: 1981
Activé par Coveo Enterprise Search