Evaluation of Ultrasonic Nonlinear Characteristics in Heat-Treated Aluminum Alloy (Al-Mg-Si-Cu)

<table>The ultrasonic nonlinear parameter obtained from three heating temperatures (250°C, 300°C, and 350°C), where the data was normalized by the value of ultrasonic nonlinear parameter obtained from no heat-treated specimen.</table>

Advances in Materials Science and Engineering

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Figure 3

Figure 3: Evaluation of Ultrasonic Nonlinear Characteristics in Heat-Treated Aluminum Alloy (Al-Mg-Si-Cu) 