Laser ultrasonic Evaluation of 316L Corrosion Resistance Based on the Influence of Grain Size-Reference-Cited by-同舟云学术

Laser ultrasonic Evaluation of 316L Corrosion Resistance Based on the Influence of Grain Size

Published:2022-08-26 Issue: Volume: Page:
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Author:

ZHU Zhenge¹,YIN Anmin¹^ORCID,XU Xiaodong²,ZHANG Shuyi²,ZHANG Zewen¹,SHU Xuedao¹

Affiliation:

1. Ningbo University

2. Nanjing University

Abstract

Abstract Several 316L samples with different grain size and distribution were conducted with different heat treatments, and then each samples were measured by scanning electron microscope(SEM), Laser ultrasonic, and Electrochemistry. Longitudinal wave echoes were used to calculate the attenuation of ultrasound after wavelet transform. The results show that the average grain size will affect the corrosion resistance of the sample, and the attenuation of ultrasonic waves has a high sensitivity to the average grain size. Finally, a laser ultrasonic evaluation method for 316L corrosion resistance based on the influence of mean grain size on corrosion resistance is proposed, and it is a nondestructive testing method which could be used in online testing.

Publisher

Research Square Platform LLC

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