1
Paul Crook, Richard D Zordan: Wear-resistant stainless steel. Cabot Corporation, Jack Schuman, Joseph J Phillips, December 11, 1984: US04487630 (53 worldwide citation)

A high chromium stainless steel especially suited for use as wear (galling) resisting components, for example, valve parts. A typical alloy generally contains chromium, nickel, silicon, carbon, an effective cobalt content and the balance iron plus normal impurities. The alloy may be produced in the ...


2
Paul Crook, Aziz I Asphahani, Steven J Matthews: Corrosion-and-wear-resistant cobalt-base alloy. Haynes International, Joseph J Phillips, March 26, 1991: US05002731 (23 worldwide citation)

Disclosed is a cobalt-base alloy that has a valuable combination of both corrosion- and wear-resistant properties. The alloy nominally contains, in percent by weight, 25.5 chromium, 8.5 nickel, 3.0 iron, 5 molybdenum, 2 tungsten, 0.40 silicon, 0.75 manganese, 0.06 carbon, 0.08 nitrogen and the balan ...


3
Paul Crook: Cobalt-containing alloys. Cabot Stellite Europe, Jack Schuman, Robert F Dropkin, October 12, 1982: US04353742 (17 worldwide citation)

A wear-resistant alloy, which excluding impurities, has the following composition: (a) about 50 to 70% of cobalt, nickel and iron; (b) 27 to 35% of chromium; (c) 5 to 15% of molybdenum and/or tungsten; (d) 0.3 to 2.25% of carbon and/or boron; (e) 0 to 3% of silicon and/or manganese; (f) 0 to 5% of o ...


4
Paul Crook: Hard nickel-base alloy resistant to wear and corrosion. Cabot Corporation, Jack Schuman, Joseph J Phillips, February 7, 1984: US04430297 (17 worldwide citation)

Disclosed is a hard wear resistant nickel based alloy including a carbide-former, preferably niobium, and essentially cobalt free but which has similar properties to cobalt, chromium, tungsten, carbon alloys. Typically the alloy has a composition, in parts by weight, Cr-34 C-1.2, Mo-10, Fe-3, Si-1, ...


5
Paul Crook: Copper-containing Ni-Cr-Mo alloys. Haynes International, Buchanan Ingersoll P C, August 28, 2001: US06280540 (7 worldwide citation)

The C-type nickel base alloys of the type containing significant amounts of chromium (about 16 to 25%) and molybdenum (about 12 to 18%) may be improved by adding small but critical amounts of copper (about 1 to 3.5%) which their general corrosion resistance to a wide range of both oxidizing and non- ...


6
Paul Crook, Martin L Caruso: Ni-Cr-Mo-Cu alloys resistant to sulfuric acid and wet process phosphoric acid. Haynes International, Buchanan Ingersoll P C, July 20, 2004: US06764646 (7 worldwide citation)

A nickel-chromium-molybdenum-copper alloy that is resistant to sulfuric acid and wet process phosphoric acid contains in weight percent 30.0 to 35.0% chromium, 5.0 to 7.6% molybdenum, 1.6 to 2.9% copper, up to 1.0% manganese, up to 0.4% aluminum, up to 0.6% silicon, up to 0.06% carbon, up to 0.13% n ...


7
Narasi Sridhar, Paul Crook: Corrosion- and wear-resistant duplex steel. Cabot Corporation, Joseph J Phillips, July 7, 1987: US04678523 (6 worldwide citation)

Disclosed is a "duplex" stainless steel especially suited for use in conditions requiring a high degree of wear and corrosion resistance; for example structural fasteners, such as nuts and bolts as used in chemical processing. The alloy typically contains, in weight percent, 12 cobalt, 20 chromium, ...


8
Paul Crook: Cobalt superalloy. Cabot Corporation, Jack Schuman, Joseph J Phillips, November 15, 1983: US04415532 (5 worldwide citation)

Disclosed is a cobalt-base superalloy containing about 32% cobalt, 8% nickel, 26.5% chromium, 2.5% tungsten, 5% niobium, about 1% each manganese and silicon, about 0.4% carbon, and the balance about 23% iron plus incidental impurities and modifiers normally found in alloys of this class. The alloy i ...


9
Paul Crook: Ni-Cr-Mo alloys resistant to wet process phosphoric acid and chloride-induced localized attack. Haynes International, Buchanan Ingersoll P C, May 25, 2004: US06740291 (4 worldwide citation)

A nickel-chromium-molybdenum alloy that is thermally stable and resistant to wet process phosphoric acid and chloride induced localized attack contains in weight percent 31.0 to 34.5% chromium, 7.0 to 10.0% molybdenum, up to 0.2% nitrogen, up to 3.0% iron, up to 1.0% manganese, up to 0.4% aluminum, ...


10
Paul Crook, Richard D Zordan: Nuclear grade steel articles. Haynes International, Joseph J Phillips, January 19, 1988: US04720435 (3 worldwide citation)

Disclosed is an iron-base alloy eminently suited for use as components in nuclear energy installations. The alloy normally contains, in percent by weight, about 20% chromium, about 10% nickel, about 5.5% silicon, about 1.5% carbon, about 8% niobium plus vanadium, about 0.05% nitrogen, less than 1% c ...