Transcription of MECHANICALPROPERTIES - KOBELCO
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MECHANICALPROPERTIES - KOBELCO
Frequency [-] (Ann)Ti-9 (Ann)Ti-15Mo-5Zr-3Al(STA)Ti-15V-3Cr-3Sn- 3Al(STA)Ti-6Al-2Sn-4Zr-6Mo(STA)Ti-10V-2F e-3Al(STA) (ST)Commercially pure titanium (KS50)Commercially pure titanium (KS50) ELITi-15V-3Cr-3Sn-3Al (ST)Ti-6Al-4V ELI (ST) ELITi-6Al-4V ELI(ST) + + + + +07Ti-15V-3Cr-3Sn-3Al (STA)Ti-6Al-4V (Ann) , , ,toTi-15Mo-5Zr-3 AIwithatensilestrengthof1250 MPa.(TensilestrengthslistedaboveareKOBEL CO'sspecifiedminimumvalues.) C.( )High temperature characteristics Commerciallypuretitaniumisstableforusein thetemperaturerangeuptoapproximately300 Cduetoitsspecificstrength,creepresistanc e, ,titaniumalloysexhibithighstrengthinthet emperaturerangeuptoapproximately500 C.( )Low temperature characteristics , (-269 C).( )Fatigue characteristics Thefatiguestrength(107cycles)isroughlyeq uivalentto50%ofthetensilestrength,andwel dingdoesnotcauseasignificantdeclineinfat iguestrength.
Fig.6:Fatigue characteristics of Ti-6Al-4V base material and welded portion . General corrosion 1 1 2 2 1 2 1 1 Pitting corrosion 1 1 2 4 2 4 1 2 Crevice corrosion 1 1 2 4 2 4 2 3 Stress corrosion cracking 1 1 1 4 1 4 1 2 2 2 3 3 3 3 2 2-1.6 1 0.5 0.1 0.05 0.01 0 102030405060 104ûC 82ûC 54ûC 32ûC 100 10 1 0.1 0.01 02468 10 12 AKOT AKOT
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