- Volume 23 Issue 7 Serial No. 166
DOI QR Code
Prediction of Fracture Appearance Transition Temperature(FATT) to Steel by Ultrasonic and Barkhausen Noise Method
초음파와 Barkhausen Noise에 의한 강의 연.취성천이온도 예측
- Published : 1999.07.01
It is advantageous to use an NDE method to assess the mechanical properties of materials since the conventional method is time-consuming and sometimes requires cutting of sample from the material/component. This paper shows that the ultrasonic and the Barkhausen noise(BHN) methods can be used to accurately characterize forged reactor vessels. The attenuation coefficient of the ultrasonic wave was changed with heat treatment temperature and condition[as-quenched, tempered, PWHT]. The RMS[root mean square] voltage of Barkhausen noise depended on heat treatment temperature and conditions. The fracture appearance transition temperature(FATT) can be predicted using nondestructive evaluation methods.
Ultrasonic;Barkhausen Noise(BHN);Fracture Appearance Transition Temperature(FATT);Heat treatment;Grain