EVALUATION OF STRENGTH IN PRE-DEFORMED AUSTENITIC STAINLESS STEEL USING NONLINEAR ULTRASONIC WAVE

The different strengths induced by the different deformation modes for 304 austenitic stainless specimens were measured by using nonlinear ultrasonic wave technique. Results showed that nonlinear ultrasonic parameter increased with the increasing yield strength of 304 austenitic stainless steel indu...

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Main Authors: ZHANG JianFeng, XUAN FuZhen
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Strength 2017-01-01
Series:Jixie qiangdu
Subjects:
Online Access:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.06.011
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author ZHANG JianFeng
XUAN FuZhen
author_facet ZHANG JianFeng
XUAN FuZhen
author_sort ZHANG JianFeng
collection DOAJ
description The different strengths induced by the different deformation modes for 304 austenitic stainless specimens were measured by using nonlinear ultrasonic wave technique. Results showed that nonlinear ultrasonic parameter increased with the increasing yield strength of 304 austenitic stainless steel induced by the tensile deformation,asymmetrical cyclic deformation and early symmetrical cyclic deformation. A power-law relation was proposed between nonlinear ultrasonic parameter and yield strength according to the dislocation string model of acoustic nonlinearity and the theory of flow stress of metallic material. The measured data was fitted by the power-law relation,and then the sensitivity coefficient of nonlinear ultrasonic parameter to strength λ under the condition of tensile deformation,asymmetrical cyclic deformation and symmetrical cyclic deformation was found to be 3. 27 × 10<sup>-7</sup>,6. 91 × 10<sup>-6</sup> and 1. 95 × 10<sup>-5</sup>,respectively. Microstructures analysis indicates that the differences of the three sensitivity coefficient λ might be due to the different evolution mechanism of dislocation structures and the content of martensite in different deformation conditions.
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spelling doaj.art-6ad397bdd9c94414929b3643a6420e792023-08-01T07:45:49ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692017-01-01391320132630600194EVALUATION OF STRENGTH IN PRE-DEFORMED AUSTENITIC STAINLESS STEEL USING NONLINEAR ULTRASONIC WAVEZHANG JianFengXUAN FuZhenThe different strengths induced by the different deformation modes for 304 austenitic stainless specimens were measured by using nonlinear ultrasonic wave technique. Results showed that nonlinear ultrasonic parameter increased with the increasing yield strength of 304 austenitic stainless steel induced by the tensile deformation,asymmetrical cyclic deformation and early symmetrical cyclic deformation. A power-law relation was proposed between nonlinear ultrasonic parameter and yield strength according to the dislocation string model of acoustic nonlinearity and the theory of flow stress of metallic material. The measured data was fitted by the power-law relation,and then the sensitivity coefficient of nonlinear ultrasonic parameter to strength λ under the condition of tensile deformation,asymmetrical cyclic deformation and symmetrical cyclic deformation was found to be 3. 27 × 10<sup>-7</sup>,6. 91 × 10<sup>-6</sup> and 1. 95 × 10<sup>-5</sup>,respectively. Microstructures analysis indicates that the differences of the three sensitivity coefficient λ might be due to the different evolution mechanism of dislocation structures and the content of martensite in different deformation conditions.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.06.011Nonlinear ultrasonic wave;Austenitic stainless;Deformation strengthening;Microstructures
spellingShingle ZHANG JianFeng
XUAN FuZhen
EVALUATION OF STRENGTH IN PRE-DEFORMED AUSTENITIC STAINLESS STEEL USING NONLINEAR ULTRASONIC WAVE
Jixie qiangdu
Nonlinear ultrasonic wave;Austenitic stainless;Deformation strengthening;Microstructures
title EVALUATION OF STRENGTH IN PRE-DEFORMED AUSTENITIC STAINLESS STEEL USING NONLINEAR ULTRASONIC WAVE
title_full EVALUATION OF STRENGTH IN PRE-DEFORMED AUSTENITIC STAINLESS STEEL USING NONLINEAR ULTRASONIC WAVE
title_fullStr EVALUATION OF STRENGTH IN PRE-DEFORMED AUSTENITIC STAINLESS STEEL USING NONLINEAR ULTRASONIC WAVE
title_full_unstemmed EVALUATION OF STRENGTH IN PRE-DEFORMED AUSTENITIC STAINLESS STEEL USING NONLINEAR ULTRASONIC WAVE
title_short EVALUATION OF STRENGTH IN PRE-DEFORMED AUSTENITIC STAINLESS STEEL USING NONLINEAR ULTRASONIC WAVE
title_sort evaluation of strength in pre deformed austenitic stainless steel using nonlinear ultrasonic wave
topic Nonlinear ultrasonic wave;Austenitic stainless;Deformation strengthening;Microstructures
url http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.06.011
work_keys_str_mv AT zhangjianfeng evaluationofstrengthinpredeformedausteniticstainlesssteelusingnonlinearultrasonicwave
AT xuanfuzhen evaluationofstrengthinpredeformedausteniticstainlesssteelusingnonlinearultrasonicwave