US2007221298A1PendingUtilityA1

Ni-based super alloy

48
Assignee: DAIDO STEEL CO LTDPriority: Mar 22, 2006Filed: Mar 20, 2007Published: Sep 27, 2007
Est. expiryMar 22, 2026(expired)· nominal 20-yr term from priority
Inventors:Seiji KurataShigeki UetaTetsuya Shimizu
C22C 19/056C22C 19/055
48
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Claims

Abstract

The present invention provides a Ni-based super alloy including, by mass %, C: 0.01 to 0.15%; Si: 1% or less; Mn: 1% or less; P: 0.02% or less; S: 0.01% or less; Co: less than 0.10%; Cr: 16 to 22%; Mo: 4 to 10%; W: 5% or less; Al: 1.2 to 2.5%; Ti: 2.4 to 4%; B: 0.001 to 0.05%; Zr: 0.01 to 0.5%; Fe: 1% or less; and a balance of Ni and inevitable impurities.

Claims

exact text as granted — not AI-modified
1 . A Ni-based super alloy comprising, by mass %:
 C: 0.01 to 0.15%;   Si: 1% or less;   Mn: 1% or less;   P: 0.02% or less;   S: 0.01% or less;   Co: less than 0.10%;   Cr: 16 to 22%;   Mo: 4 to 10%;   W: 5% or less;   Al: 1.2 to 2.5%;   Ti: 2.4 to 4%;   B: 0.001 to 0.05%;   Zr: 0.01 to 0.5%;   Fe: 1% or less; and   a balance of Ni and inevitable impurities.   
   
   
       2 . The Ni-based super alloy according to  claim 1 , wherein Mo+1/2W is 4 to 10%. 
   
   
       3 . The Ni-based super alloy according to  claim 1 , which further comprises at least one selected from the group consisting of:
 Nb: 0.1 to 3%; and   Ta: 0.1 to 3%.   
   
   
       4 . The Ni-based super alloy according to  claim 2 , which further comprises at least one selected from the group consisting of:
 Nb: 0.1 to 3%; and   Ta: 0.1 to 3%.   
   
   
       5 . The Ni-based super alloy according to  claim 1 , which further comprises at least one selected from the group consisting of:
 Ca: 0.001 to 0.03%;   Mg: 0.001 to 0.03%; and   REM: 0.001 to 0.1%.   
   
   
       6 . The Ni-based super alloy according to  claim 2 , which further comprises at least one selected from the group consisting of:
 Ca: 0.001 to 0.03%;   Mg: 0.001 to 0.03%; and   REM: 0.001 to 0.1%.   
   
   
       7 . The Ni-based super alloy according to  claim 3 , which further comprises at least one selected from the group consisting of:
 Ca: 0.001 to 0.03%;   Mg: 0.001 to 0.03%; and   REM: 0.001 to 0.1%.   
   
   
       8 . The Ni-based super alloy according to  claim 4 , which further comprises at least one selected from the group consisting of:
 Ca: 0.001 to 0.03%;   Mg: 0.001 to 0.03%; and   REM: 0.001 to 0.1%.   
   
   
       9 . The Ni-based super alloy according to  claim 1 , which further comprises:
 Cu: 0.01 to 2%.   
   
   
       10 . The Ni-based super alloy according to  claim 2 , which further comprises:
 Cu: 0.01 to 2%.   
   
   
       11 . The Ni-based super alloy according to  claim 3 , which further comprises:
 Cu: 0.01 to 2%.   
   
   
       12 . The Ni-based super alloy according to  claim 4 , which further comprises:
 Cu: 0.01 to 2%.   
   
   
       13 . The Ni-based super alloy according to  claim 5 , which further comprises:
 Cu: 0.01 to 2%.   
   
   
       14 . The Ni-based super alloy according to  claim 6 , which further comprises:
 Cu: 0.01 to 2%.   
   
   
       15 . The Ni-based super alloy according to  claim 7 , which further comprises:
 Cu: 0.01 to 2%.   
   
   
       16 . The Ni-based super alloy according to  claim 8 , which further comprises:
 Cu: 0.01 to 2%.   
   
   
       17 . The Ni-based super alloy according to  claim 1 , which further comprises:
 V: 0.05 to 1%.   
   
   
       18 . The Ni-based super alloy according to  claim 2 , which further comprises:
 V: 0.05 to 1%.   
   
   
       19 . The Ni-based super alloy according to  claim 3 , which further comprises: V: 0.05 to 1%. 
   
   
       20 . The Ni-based super alloy according to  claim 4 , which further comprises:
 V: 0.05 to 1%.   
   
   
       21 . The Ni-based super alloy according to  claim 5 , which further comprises:
 V: 0.05 to 1%.   
   
   
       22 . The Ni-based super alloy according to  claim 6 , which further comprises:
 V: 0.05 to 1%.   
   
   
       23 . The Ni-based super alloy according to  claim 7 , which further comprises:
 V: 0.05 to 1%.   
   
   
       24 . The Ni-based super alloy according to  claim 8 , which further comprises:
 V: 0.05 to 1%.   
   
   
       25 . The Ni-based super alloy according to  claim 9 , which further comprises:
 V: 0.05 to 1%.   
   
   
       26 . The Ni-based super alloy according to  claim 10 , which further comprises:
 V: 0.05 to 1%.   
   
   
       27 . The Ni-based super alloy according to  claim 11 , which further comprises:
 V: 0.05 to 1%.   
   
   
       28 . The Ni-based super alloy according to  claim 12 , which further comprises:
 V: 0.05 to 1%.   
   
   
       29 . The Ni-based super alloy according to  claim 13 , which further comprises:
 V: 0.05 to 1%.   
   
   
       30 . The Ni-based super alloy according to  claim 14 , which further comprises:
 V: 0.05 to 1%.   
   
   
       31 . The Ni-based super alloy according to  claim 15 , which further comprises:
 V: 0.05 to 1%.   
   
   
       32 . The Ni-based super alloy according to  claim 16 , which further comprises:
 V: 0.05 to 1%.

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