1
Ranjan Ray: Amorphous alloys which include iron group elements and boron. Allied Chemical Corporation, David W Collins, January 10, 1978: US04067732 (100 worldwide citation)

Iron group-boron base amorphous alloys have improved ultimate tensile strength and hardness and do not embrittle when heat treated at temperatures employed in subsequent processing steps, as compared with prior art amorphous alloys. The alloys have the formula


2
Ranjan Ray, Donald E Polk, Bill C Giessen: Aluminum-transition metal alloys made using rapidly solidified powers and method. Marko Materials, Morse Altman Oates & Dacey, August 31, 1982: US04347076 (85 worldwide citation)

A method of fabricating aluminum alloys containing finely dispersed aluminum-transition metal intermetallic phases is disclosed. The alloys are subjected to melt spinning to form a brittle filament consisting in large measure of a metastable face-centered cubic solid solution; this is then pulverize ...


3
Bill C Giessen, Donald E Polk, Ranjan Ray: High strength iron, nickel and cobalt base crystalline alloys with ultrafine dispersion of borides and carbides. Marko Materials, Morse Altman Oates & Dacey, October 27, 1981: US04297135 (46 worldwide citation)

Alloys, of iron, cobalt, nickel and chromium containing both metalloids and refractory metals are disclosed. The alloys are rapidly solidified at cooling rates of 10.sup.5 -10.sup.7 .degree. C./sec so as to produce an ultrafine grained metastable crystal structure having enhanced compositional homog ...


4
Ranjan Ray, Sheldon Kavesh: Binary amorphous alloys of iron or cobalt and boron. Allied Chemical Corporation, David W Collins, Ernest A Polin, July 19, 1977: US04036638 (43 worldwide citation)

Binary amorphous alloys of iron or cobalt and boron have high mechanical hardnesses and soft magnetic properties and do not embrittle when heat treated at temperatures employed in subsequent processing steps, as compared with prior art amorphous alloys. The alloys have the formula M.sub.a B.sub.b, w ...


5
Lee E Tanner, Ranjan Ray, Carl F Cline: Titanium-beryllium base amorphous alloys. Allied Chemical Corporation, David W Collins, Ernest A Polin, November 2, 1976: US03989517 (42 worldwide citation)

Amorphous metal alloys are prepared from titanium-beryllium base compositions comprising about 48 to 68 atom percent titanium and about 32 to 52 atom percent beryllium, with up to about 10 atom percent of beryllium replaced by additional alloying elements such as transition metals and metalloids. Th ...


6
Donald E Polk, Ranjan Ray, Lance A Davis: Amorphous alloys with improved resistance to embrittlement upon heat treatment. Allied Chemical Corporation, David W Collins, Arthur J Plantamura, October 4, 1977: US04052201 (38 worldwide citation)

An improvement in resistance to embrittlement upon heat treatment of amorphous metal alloys containing iron, nickel, cobalt and/or chromium in the temperature range of about 200.degree. to 350.degree. C is achieved by including boron or boron plus at least one metalloid element of carbon, silicon an ...


7
Ranjan Ray: Complex boride particle containing alloys. Allied Corporation, Ernest D Buff, Gerhard H Fuchs, December 28, 1982: US04365994 (36 worldwide citation)

Boron-containing transition metal alloys based on one or more of iron, cobalt and nickel, and containing at least two metal components, are characterized by being composed of ultrafine grains of a primary solid-solution phase randomly interspersed with particles of complex borides which are predomin ...


8
Ranjan Ray, Donald W Scott: Centrifugal casting of titanium alloys with improved surface quality, structural integrity and mechanical properties in isotropic graphite molds under vacuum. Santoku America, Stevens Davis Miller & Mosher, August 17, 2004: US06776214 (34 worldwide citation)

Methods for making various titanium base alloys and titanium aluminides into engineering components such as rings, tubes and pipes by melting of the alloys in a vacuum or under a low partial pressure of inert gas and subsequent centrifugal casting of the melt in the graphite molds rotating along its ...


9
Lee Elliot Tanner, Ranjan Ray, Carl F Cline: Amorphous metal alloys in the beryllium-titanium-zirconium system. Allied Chemical Corporation, David W Collins, Gerhard H Fuchs, September 27, 1977: US04050931 (33 worldwide citation)

Amorphous metal alloys are prepared from compositions in the beryllium-titanium-zirconium system. The compositions, in the form of long, continuous ribbon, are defined within an area on a ternary diagram having as its coordinates in atom percent beryllium, atom percent titanium, and atom percent zir ...


10
Lee E Tanner, Ranjan Ray: Filaments of zirconium-copper glassy alloys containing transition metal elements. Allied Chemical Corporation, Ernest D Buff, Gerhard H Fuchs, January 23, 1979: US04135924 (32 worldwide citation)

Continuous filaments of zirconium-copper glassy alloys containing at least one of the transition metal elements of iron, cobalt and nickel are disclosed. The filaments are substantially totally glassy and have a composition consisting essentially of about 1 to 68 atom percent copper plus at least on ...



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