Mechanic of Advanced and Smart Materials
Quarterly

Investigation of the effect of ultrasonic shock on corrosion behavior of stainless steel 316

Document Type : Original Article

Authors

Alireza NezamAbadi
Nader Bolhassani

Islamic Azad University, Arak Branch

https://doi.org/10.52547/masm.2.2.220
Abstract
Refineries and petrochemical industries, due to the presence of all-metal equipment and acidic environment, have high corrosion. This study investigated the effect of ultrasonic shock on the corrosion behavior of 316 stainless steels in order to the increasing use of stainless steels in this industries. The aim of this study was to investigate the effect of ultrasonic stress relief method on increasing the strength of parts in corrosive environments. It should be noted that the residual stress in the samples is created by welding. In this study, first the considered sample is De-tensioning using ultrasonic vibration at a frequency of 20 kHz, then the obtained results are compared with the results of samples without De-tensioning operation and also thermal De-tensioning operation. XRD method used to measure the residual stress. The obtained results show that in ultrasonic method and heat treatment, the amount of residual stress is reduced by 58.7% and 54.3%, respectively. It has also been observed that the use of ultrasonic waves has increased the life of the sample in a corrosive environment.

Keywords

Corrosion
Ultrasonic waves
Residual stress
De- tensioning
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Mechanic of Advanced and Smart Materials
Volume 2, Issue 2
Summer 2022
Pages 220-234

  • Receive Date 06 August 2022
  • Revise Date 20 August 2022
  • Accept Date 11 September 2022

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