Functionally graded variable entropy alloys with resistance to hydrogen induced cracking

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United States of America Patent

PATENT NO 11549165
APP PUB NO 20220396859A1
SERIAL NO

17343021

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Abstract

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The disclosure provides for a layered metal with resistance to hydrogen induced cracking and method of production thereof, comprising a core metal alloy and a skin metal alloy. The core metal alloy comprises twinned boundaries. The core metal alloy has undergone plastic deformation and a heat treatment. The core metal alloy comprises nickel and cobalt. The skin metal alloy is disposed on the core metal alloy, wherein the skin metal alloy comprises an entropy greater than the core metal alloy. The core metal alloy comprises a greater density of twinned boundaries than the skin metal alloy. The skin metal alloy comprises a stacking fault energy of at least about 50 mJ/m2, and the skin metal alloy comprises iron, aluminum, and boron.

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Patent Owner(s)

Patent OwnerAddress
HALLIBURTON ENERGY SERVICES INC3000 N SAM HOUSTON PARKWAY E HOUSTON TX 77032-3219

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fripp, Michael Linley Carrollton, US 327 2421
Shukla, Shashwat Singapore, SG 11 2
Singh, Arpana Singapore, SG 10 0

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