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LECOEUR ELECTRONIQUE
The Specialist of electronics for ultrasonic testing.

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Technical Discussions
P. Palanichamy
R & D, SCIENTIFIC OFFICER
INDIRA GANDHI CENTRE FOR ATOMIC RESEACH, India, Joined Jul 2000, 10

P. Palanichamy

R & D, SCIENTIFIC OFFICER
INDIRA GANDHI CENTRE FOR ATOMIC RESEACH,
India,
Joined Jul 2000
10
02:32 Jun-22-2001
Mechanical property correlation

Dear Forum Members,

We have made an interesting study using ultrasonic velocity measurements in Alloy 625 (Inconol) wherein found a good linear correlation between ultrasonic velocity and yield strength. We have generated different yield strength specimens by ageing in the temperature range 923 to 1123K. We would like to receive the supportive physical explanation or references for this linear variation between yield strength and ultrasonic velocity.

Thank you in advance.

P. Palanichamy
--------------


    
 
 
Macelo Pinheiro Mendes
Student
Rio de Janeiro Federal University, Brazil, Joined Feb 2001, 3

Macelo Pinheiro Mendes

Student
Rio de Janeiro Federal University,
Brazil,
Joined Feb 2001
3
00:57 Jun-23-2001
Re: Mechanical property correlation
Dear P. Palachamy,

It seems to be a foolish answer but the yeld strength
is intimately related to the Young modulus which in
turn is related to the ultrasonic velocity. Regards

Macelo Pinheiro Mendes

: Dear Forum Members,
.
: We have made an interesting study using ultrasonic
velocity measurements in Alloy 625 (Inconol) wherein
found a good linear correlation between ultrasonic
velocity and yield strength. We have generated
different yield strength specimens by ageing in
the temperature range 923 to 1123K. We would
like to receive the supportive physical explanation
or references for this linear variation between
yield strength and ultrasonic velocity.
.
: Thank you in advance.
.
: P. Palanichamy
: --------------
.



    
 
 
Gordon E. Smith
Consultant
H.C.Nutting, Co., USA, Joined Nov 1998, 6

Gordon E. Smith

Consultant
H.C.Nutting, Co.,
USA,
Joined Nov 1998
6
07:03 Jun-25-2001
Re: Mechanical property correlation
Depending on what happened during aging..

You could be seeing Vl changes due to differing INCO 625 alloy grain sizes or a variation on segregation of the alloying elements..

Hint look for Mo segration..




    
 
 

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