Nonlinear ultrasonic characterization of precipitation in 17-4PH stainless steel

被引：53

作者：

Matlack, Kathryn H. ^{[1
]}

Bradley, Harrison A. ^{[2
]}

Thiele, Sebastian ^{[3
]}

Kim, Jin-Yeon ^{[3
]}

Wall, James J. ^{[2
,4
]}

Jung, Hee Joon ^{[5
]}

Qu, Jianmin ^{[6
]}

Jacobs, Laurence J. ^{[2
,3
]}

机构：

[1] Swiss Fed Inst Technol, Dept Mech & Proc Engn, CH-8092 Zurich, Switzerland

[2] Georgia Inst Technol, GW Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

[3] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA

[4] Elect Power Res Inst, Charlotte, NC 28262 USA

[5] Pacific NW Natl Lab, Richland, WA 99354 USA

[6] Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL 60208 USA

来源：

NDT & E INTERNATIONAL | 2015年 / 71卷

关键词：

Nonlinear ultrasonic methods; Thermal embrittlement; Precipitate hardening; Nonlinear Rayleigh waves; RAYLEIGH SURFACE-WAVES; HARMONIC-GENERATION; RPV STEELS; MICROSTRUCTURAL EVOLUTION; MODEL ALLOYS; EMBRITTLEMENT; KINETICS; DAMAGE; PERSPECTIVE; FE;

D O I：

10.1016/j.ndteint.2014.11.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This research is part of a broader effort to develop a nondestructive evaluation technique to monitor radiation damage in reactor pressure vessel steels, the main contributor being copper-rich precipitates. In this work, 17-4PH stainless steel is thermally aged to study the effects of copper precipitates on the acoustic nonlinearity parameter. Nonlinear ultrasonic measurements using Rayleigh waves are performed on isothermally aged 17-4PH. Results showed a decrease in the acoustic nonlinearity parameter with increasing aging time, consistent with evidence of copper precipitation from hardness, thermoelectric power, transmission electron microscopy, and atom probe tomography measurements. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：8 / 15

页数：8

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