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

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Bolhassani Nader; NezamAbadi Alireza

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Journal Paper

Paper Information

Journal: Mechanics of Advanced and Smart Materials journal Year:2022 | Volume:2 | Issue:2 Page(s): 220-234

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Information Journal Paper

Title

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

Author(s)

Bolhassani Nader | NezamAbadi Alireza | Issue Writer Certificate

Keywords

CorrosionQ4

Ultrasonic WavesQ4

Residual StressQ4

De- tensioningQ4

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.

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