Abstract
This paper presents a comparison of contact and immersion waves used to measure residual stresses. The residual stresses are produced due to a dissimilar welding of stainless steel (304) to carbon steel (A106). Longitudinal critically refracted (LCR) wave propagated by 2. MHz contact and immersion ultrasonic transducers is employed to measure the residual stresses. A Finite Element (FE) model of welding process, which is validated by hole-drilling method, is used to verify the ultrasonic results while an acceptable agreement is achieved. The best agreement is observed in the parent material while the maximum difference is measured in the heat affected zone (HAZ). The results show no considerable difference between using contact and immersion transducers in ultrasonic stress measurement of dissimilar joints.
| Language | English |
|---|---|
| Pages | 473-482 |
| Number of pages | 10 |
| Journal | Materials and Design |
| Volume | 47 |
| DOIs | |
| Publication status | Published - May 2013 |
| Externally published | Yes |
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Keywords
- acoustoelastic constant
- dissimilar welding
- finite element welding simulation
- immersion ultrasonic method
- non-destructive stress measurement
- welding residual stress
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Comparison between contact and immersion ultrasonic method to evaluate welding residual stresses of dissimilar joints. / Javadi, Yashar; Najafabadi, Mehdi Ahmadi.
In: Materials and Design, Vol. 47, 05.2013, p. 473-482.Research output: Contribution to journal › Article
TY - JOUR
T1 - Comparison between contact and immersion ultrasonic method to evaluate welding residual stresses of dissimilar joints
AU - Javadi, Yashar
AU - Najafabadi, Mehdi Ahmadi
PY - 2013/5
Y1 - 2013/5
N2 - This paper presents a comparison of contact and immersion waves used to measure residual stresses. The residual stresses are produced due to a dissimilar welding of stainless steel (304) to carbon steel (A106). Longitudinal critically refracted (LCR) wave propagated by 2. MHz contact and immersion ultrasonic transducers is employed to measure the residual stresses. A Finite Element (FE) model of welding process, which is validated by hole-drilling method, is used to verify the ultrasonic results while an acceptable agreement is achieved. The best agreement is observed in the parent material while the maximum difference is measured in the heat affected zone (HAZ). The results show no considerable difference between using contact and immersion transducers in ultrasonic stress measurement of dissimilar joints.
AB - This paper presents a comparison of contact and immersion waves used to measure residual stresses. The residual stresses are produced due to a dissimilar welding of stainless steel (304) to carbon steel (A106). Longitudinal critically refracted (LCR) wave propagated by 2. MHz contact and immersion ultrasonic transducers is employed to measure the residual stresses. A Finite Element (FE) model of welding process, which is validated by hole-drilling method, is used to verify the ultrasonic results while an acceptable agreement is achieved. The best agreement is observed in the parent material while the maximum difference is measured in the heat affected zone (HAZ). The results show no considerable difference between using contact and immersion transducers in ultrasonic stress measurement of dissimilar joints.
KW - acoustoelastic constant
KW - dissimilar welding
KW - finite element welding simulation
KW - immersion ultrasonic method
KW - non-destructive stress measurement
KW - welding residual stress
UR - http://www.scopus.com/inward/record.url?scp=84872567566&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/pii/S0261306912008989
U2 - 10.1016/j.matdes.2012.12.069
DO - 10.1016/j.matdes.2012.12.069
M3 - Article
VL - 47
SP - 473
EP - 482
JO - Materials & Design
T2 - Materials & Design
JF - Materials & Design
SN - 0261-3069
ER -