Velocity of sound in Duplex and super duplex ss
Velocity of sound in Duplex and super duplex ss
(OP)
I need data on velocities of sound in DSS(S31803) and SDSS(S32750) for calculations related to Ultrasonic testing. Does anyone have refernces/data on the same???
Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
The whole of science is nothing more than a refinement of everyday thinking!!!





RE: Velocity of sound in Duplex and super duplex ss
The CRC Handbook gives values of 4990 m/s for cast steel, 4973 for nickel, 5000 for soft steel, 5130 for iron. I seem to remember that sound velocity is modulus dependent. That being the case and since modulus is chemistry dependent, as opposed to phase dependent, then the veocity in an alloy like 2205 or 2507 is going to be intermediate to iron and nickel. It does change pretty rapidly with temperature, but you're probably using it at room temperature for ultrasonics. These values are at 20C, which may or may not be room temperature where you are.
I hope that crude an approximation helps.
RE: Velocity of sound in Duplex and super duplex ss
Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
The whole of science is nothing more than a refinement of everyday thinking!!!
RE: Velocity of sound in Duplex and super duplex ss
L = (E/rho)^0.5
where E = Young's modulus and rho = mass density. If you look up the density for each of these alloys and the modulus of elasticity, then you will be able to calculate the velocity of sound using the above equation. Good luck!
Maui
RE: Velocity of sound in Duplex and super duplex ss
Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
The whole of science is nothing more than a refinement of everyday thinking!!!
RE: Velocity of sound in Duplex and super duplex ss
V=5545.4+6.4*F (m/s)
where V is the longitudinal wave speed and F is the ferrite percentage. In this way, measuring V gives you the ferrite-austenite balance in your duplex or the other way around, knowing the ferrite content in your duplex gives you a good estimation of sound speed.
Hope it helps.