Claims
- 1. An iridium-doped heat resistant Ni-base superalloy comprising a heat resistant Ni-base superalloy doped with iridium in a range from 1 to 2 atomic %, said superalloy having an orderly arrayed alloy structure in which iridium is dissolved in γ and γ′ phases, both of which are strengthened by iridium solid solution, and said superalloy being strengthened by said orderly arrayed alloy structure and exhibiting higher strength at 1,100° C. than any other heat resistant Ni-base superalloy that is not doped with iridium.
- 2. An article comprising the iridium-doped heat resistant Ni-base superalloy as claimed in claim 1.
- 3. A method of making the iridium-doped heat resistant Ni-base superalloy as claimed in claim 1, which comprises adding 1 to 2 atomic % of iridium to a heat resistant Ni-base superalloy.
- 4. The iridium-doped heat resistant Ni-base superalloy as claimed in claim 1, wherein the Ni-base superalloy is TMS-63.
- 5. An article comprising the iridium-doped heat resistant Ni-base superalloy as claimed in claim 1.
- 6. A method of making the iridium-doped heat resistant Ni-base superalloy as claimed in claim 4, which comprises adding 1 to 2 atomic % of iridium to a heat resistant Ni-base superalloy.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8-285119 |
Oct 1996 |
JP |
|
Parent Case Info
This application is a 371 of PCT/JP97/03911 filed Oct. 28, 1997.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/JP97/03911 |
|
WO |
00 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO98/18972 |
5/7/1998 |
WO |
A |
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4261742 |
Coupland et al. |
Apr 1981 |
A |