中文

Journal of Shanghai University（Natural Science Edition） ›› 2010, Vol. 16 ›› Issue (2): 125-129.

• Communication and Information • Previous Articles     Next Articles

Nondestructive Ultrasound Test and Evaluation of Average Grain Diameter in SUS306 Stainless Steel

MA Shi-Wei, YUAN Kang   

  1. School of Mechatronics Engineering and Automation, Shanghai Key Laboratory of Power Station Automation Technology, Shanghai University, Shanghai 200072, China)
  • Received:2008-07-10 Online:2010-04-20 Published:2010-04-20

PDF

2176

Cited

4

Abstract:

High frequency nondestructive ultrasound test using a direct contact pulse-echo method is used to test samples of SUS306 stainless steel that were processed by high temperature heat treatment. Reflected ultrasonic signals were analyzed. Characteristics such as attenuation coefficient, velocity, fundamental frequencies of bottom echoes, and intensity of backscattering waves are studied. Relationship between ultrasonic properties and the average grain diameter of the tested material is obtained. These results are useful in nondestructive detection and in the assessment of the degree of material’s thermal fatigue.

Key words: nondestructive evaluation; SUS306 stainless steel; grain diameter; ultrasound

CLC Number: