Titanium alloys and applications
Date:2013-06-27 22:08 Source:未知 Author:admin Click:
| More widely used alloys | Attribute/applications |
| Ti-6Al-4V | Workhorse general purpose high strength alloy |
| Ti-6Al-2Sn-4Zr-2Mo (6-2-4-2) | Creep and oxidation resistant engine alloy |
| Ti-6Al-2Sn-4Zr-6Mo (6-2-4-6) | Creep and oxidation resistant engine alloy |
| Ti-3Al-8V-6Cr-4Zr-4Mo (Beta C) | Beta alloy with established spring applications |
| Ti-10V-2Fe-3Al (10-2-3) | Beta forging alloy used for 777 landing gear |
| Ti-15V-3Cr-3Sn-3Al (15-3-3-3) | High strength heat treatable beta sheet alloy |
| Ti-3Al-2.5V | Medium strength alloy used for hydraulic tubing |
| Ti-4Al-4Mo-2Sn (550) | Higher strength heat treatable airframe and engine alloy |
| Ti-5.5Al-3.5Sn-3Zr-1Nb (829) | Advanced engine alloy, creep and oxidation resistant |
| Ti-5.8Al-4Sn-3.5Zr-0.7Nb (834) | Advanced engine alloy, creep and oxidation resistant |
| Ti-5Al-2Sn-4Mo-2Zr-4Cr (Ti 17) | Advanced engine alloy, creep and oxidation resistant |
| Ti-15Mo-3Nb-3Al-0.2Si (21S) | Oxidation and corrosion resistant beta sheet alloy |
|
The following alloys are of increasing importance, |
|
| Ti-6Al-2Zr-2Sn-2Mo-2Cr-0.25Si (6.22.22) | Airframe alloy for F22 and JSF projects |
| Ti-4.5Al-3V-2Mo-2Fe (SP 700) | Competitor for Ti-6-4 for SPF and general use |
|
The remaining alloys tend to be less widely used but are none the less important and may be critical in their application to specific fully validated components. |
|
| Ti-2Cu (230) | Heat treatable sheet alloy |
| Ti-4Al-4Mo-4Sn-0.5Si (551) | High strength airframe alloy, very limited availability |
| Ti-8Al-1Mo-1V (8-1-1) | Early alloy now mainly for spares and replacements |
| Ti-6-6-2 | High strength alloy with specific earlier applications |
| Ti-11Sn-5Zr-2.5Al-1Mo-0.2Si (679) | Earlier engine alloy rarely specified in new programmes |
| Ti-6Al-5Zr-0.5Mo-0.25Si (685) | Engine alloy now mainly for spares and replacements |
