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Metallurgy and Properties of Thoria-strengthened Nickel

出版	Battelle Memorial Institute, Defense Metals Information Center, 1965
URL	http://books.google.com.hk/books?id=1xUClo_9ad0C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋This memorandum deals with the metallurgy and properties of thoria-strengthened nickel, a material which shows promise as a structural metal for use in the temperature range of 1900 to 2400 F where the present nickel- and cobalt-base superalloys lose most of their useful strength. Discussed in the memorandum are methods of producing dispersions in metals, and the processing variables involved in making dispersion-strengthened nickel. An entire section on the mechanical properties of thoria-strengthened nickel is included. Given in this section are tensile, creep-rupture, shear, and fatigue properties, as well as the effect of various thermal and mechanical treatments on the material. Physical-property data comprise one section of the memorandum, and oxidation resistance another. In a section on joining the following joining processes are discussed: resistance welding, flash welding, brazing, diffusion bonding by hot pressing, electron-beam welding, fusion welding, and others. In the last section of the memorandum the author presents an outlook for future developments of dispersion-strengthened nickel. (Author).