Waspaloy: Difference between revisions
m Bot: link syntax/spacing and minor changes |
No edit summary |
||
Line 17: | Line 17: | ||
==Properties== |
==Properties== |
||
Waspaloy is an age-hardenable, nickel-based [[superalloy]] with excellent strength properties through temperatures of roughly |
Waspaloy is an age-hardenable, nickel-based [[superalloy]] with excellent strength properties through temperatures of roughly 980°C (1800°F). Other characteristics of Waspaloy include good [[corrosion]] resistance, as well as being relatively impervious to [[oxidation]] making it well suited for service in extreme environments.<ref>[http://www.haynesintl.com/pdf/h3128.pdf], Haynes Waspaloy data sheet</ref> |
||
Waspaloy has useful strength at temperatures up to |
Waspaloy has useful strength at temperatures up to 760-870°C (1400-1600°F), and good oxidation resistance in gas turbine engine atmospheres up to 870°C (1600°F). The [[creep (deformation)|creep]] rupture strength of Waspaloy is superior to that of [[Inconel|Alloy 718]] at temperatures above 620-650°C (1150-1200°F). Short time hot [[tensile strength]] is inferior to [[RA718]] at temperatures up to 730°C (1350°F).<ref name="rolledalloys"/> |
||
==Uses== |
==Uses== |
Revision as of 11:49, 18 October 2013
Waspaloy is a registered trademark of United Technologies Corp[1] that refers to an age hardening austenitic (face-centred cubic) nickel-based superalloy. Waspaloy alloy is typically used in high temperature applications, particularly in gas turbines.
Nominal composition
Nickel 58%, chromium 19%, cobalt 13%, molybdenum 4%, titanium 3%, aluminium 1.4%[2]
Chemistry Table[3]
Cr | Ni | Mo | Co | Al | Ti | B | C | Zr | Fe | Mn | Si | P | S | Cu | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN | 18.00 | -- | 3.50 | 12.00 | 1.20 | 2.75 | 0.003 | 0.02 | 0.02 | -- | -- | -- | -- | -- | -- |
MAX | 21.00 | Balance | 5.00 | 15.00 | 1.60 | 3.25 | 0.01 | 0.10 | 0.08 | 2.00 | 0.10 | 0.15 | 0.015 | 0.015 | 0.10 |
Properties
Waspaloy is an age-hardenable, nickel-based superalloy with excellent strength properties through temperatures of roughly 980°C (1800°F). Other characteristics of Waspaloy include good corrosion resistance, as well as being relatively impervious to oxidation making it well suited for service in extreme environments.[4]
Waspaloy has useful strength at temperatures up to 760-870°C (1400-1600°F), and good oxidation resistance in gas turbine engine atmospheres up to 870°C (1600°F). The creep rupture strength of Waspaloy is superior to that of Alloy 718 at temperatures above 620-650°C (1150-1200°F). Short time hot tensile strength is inferior to RA718 at temperatures up to 730°C (1350°F).[3]
Uses
Waspaloy is often encountered in extreme environments. It is common in gas turbine blades, seals, rings, shafts and turbine disks.[3] The NIST certified reference material 1243, a standard for X-ray fluorescence spectroscopy, is made from Waspaloy.[5]
References
[4] Rolled Alloys Waspaloy Technical Information