US2016160323A1PendingUtilityA1

Oxide particle dispersion-strengthened ni-base superalloy

Assignee: NAT INST FOR MATERIALS SCIENCEPriority: Aug 5, 2013Filed: Aug 4, 2014Published: Jun 9, 2016

Est. expiryAug 5, 2033(~7.1 yrs left)· nominal 20-yr term from priority

Inventors:Hiroshi Harada Yuefeng Gu Satoru Ishihara Tadaharu Yokokawa Toshiharu Kobayashi Yutaka Koizumi Toshimitsu Tetsui

C22C 19/057C22C 19/007

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Abstract

An oxide particle dispersion-strengthened Ni-base superalloy includes Ni, 0.1% by weight to 14.0% by weight of Ru, 0.1% by weight to 14.0% by weight of Al, and inevitable impurities and has a crystal structure containing 0.01% by weight to 3.0% by weight of dispersed oxide particles based on the total amount of the superalloy.

Claims

exact text as granted — not AI-modified

1 . An oxide particle dispersion-strengthened Ni-base superalloy having a composition comprising Ni, 0.1% by weight to 14.0% by weight of Ru, 0.1% by weight to 14.0% by weight of Al, and inevitable impurities,
 the superalloy also having a crystal structure containing 0.01% by weight to 3.0% by weight of dispersed oxide particles based on the total amount of the superalloy.   
     
     
         2 . The oxide particle dispersion-strengthened Ni-base superalloy according to  claim 1 , which comprises 0.1% by weight to 14.0% by weight of Ru, 0.1% by weight to 14.0% by weight of Al, and at least one of 0.1% by weight to 14.0% by weight of Re, 0.1% by weight to 20.0% by weight of Co, 0.1% by weight to 20.0% by weight of Cr, 0.1% by weight to 15.0% by weight of Mo, 0.1% by weight to 20.0% by weight of W, 0.1% by weight to 10.0% by weight of Ti, 0.1% by weight to 10.0% by weight of Nb, 0.1% by weight to 15.0% by weight of Ta, 0.01% by weight to 10.0% by weight of Hf, 0.01% by weight to 10.0% by weight of Zr, 0.1% by weight to 5.0% by weight of V, 0.1% by weight to 10.0% by weight of Pt, 0.1% by weight to 10.0% by weight of Pd, 0.1% by weight to 10.0% by weight of Ir, 0.001% by weight to 1.0% by weight of B, or 0.001% by weight to 1.0% by weight of C.

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