A method for nonlinear ultrasonic evaluation of coating damage on metallic material

被引：0

作者：

Shui, Guo-Shuang ^{[1
]}

Wang, Yue-Sheng ^{[1
]}

机构：

[1] Department of Mechanics, Beijing Jiaotong University, Beijing 100044, China

来源：

Guti Huojian Jishu/Journal of Solid Rocket Technology | 2012年 / 35卷 / 05期

关键词：

Metals - Ultrasonic testing - Rocket engines - Magnesium alloys - Nondestructive examination;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A method for nonlinear ultrasonic evaluation of coating damage on metallic material was presented. The mechanical damage of coating on metallic material is closely related to the nonlinear effect of ultrasonic waves under weak adhesive bond. Rayleigh waves are excited and acquired with Ritec SNAP-0.25-7-G2 nonlinear ultrasonic measurement system. The acoustic nonlinearity parameters (ANPs) are thus measured at different stress levels for AZ31 magnesium alloy plate specimen with coating. The results show that there is a significant increase in the acoustic nonlinearity parameters with monotonic tensile loads when the stress is less than 150 MPa, although there is no obvious change in appearance of the coating. The research suggests an effective nondestructive evaluation method to track the mechanical property of coating on metallic material in a nonlinear ultrasonic way.

引用

页码：703 / 706