Effect of degradation on non-linear ultrasonic behaviour of aged centrifugally-cast stainless steel

Yu Ju Lin; Che Hua Yang; Jiunn Yuan Huang

doi:10.1784/insi.2016.58.3.142

Effect of degradation on non-linear ultrasonic behaviour of aged centrifugally-cast stainless steel

Yu Ju Lin^*, Che Hua Yang, Jiunn Yuan Huang

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

3 Scopus citations

Abstract

The effect of degradation on the behaviour of aged centrifugally-cast austenitic stainless steel (CASS) and its non-linear ultrasonic response was studied. The duplex stainless steel CF8A was aged for 2400 h, 6000 h and 8400 h at 450oC. The CF8A is mainly composed of austenite and δ-ferrite, of which the δ-ferrite will become harder with an increase in ageing time at the test temperature. The experimental results showed that the non-linear ultrasonic parameter increased because of the spinodal decomposition of the δ-ferrite and the formation of precipitates in the aged CASS. In view of the correlation found between the non-linear ultrasonic wave measurement and the mechanical test results, it is suggested that the acoustic non-linearity of duplex stainless steel depends on the microstructure, phase and precipitation.

Original language	English
Pages (from-to)	142-144
Number of pages	3
Journal	Insight: Non-Destructive Testing and Condition Monitoring
Volume	58
Issue number	3
DOIs	https://doi.org/10.1784/insi.2016.58.3.142
State	Published - 03 2016
Externally published	Yes

Keywords

Duplex stainless steel
Non-linear ultrasonics
Spinodal decomposition

Access to Document

10.1784/insi.2016.58.3.142

Cite this

@article{a2291f2be77e4979ada43b1e06bdea66,

title = "Effect of degradation on non-linear ultrasonic behaviour of aged centrifugally-cast stainless steel",

abstract = "The effect of degradation on the behaviour of aged centrifugally-cast austenitic stainless steel (CASS) and its non-linear ultrasonic response was studied. The duplex stainless steel CF8A was aged for 2400 h, 6000 h and 8400 h at 450oC. The CF8A is mainly composed of austenite and δ-ferrite, of which the δ-ferrite will become harder with an increase in ageing time at the test temperature. The experimental results showed that the non-linear ultrasonic parameter increased because of the spinodal decomposition of the δ-ferrite and the formation of precipitates in the aged CASS. In view of the correlation found between the non-linear ultrasonic wave measurement and the mechanical test results, it is suggested that the acoustic non-linearity of duplex stainless steel depends on the microstructure, phase and precipitation.",

keywords = "Duplex stainless steel, Non-linear ultrasonics, Spinodal decomposition",

author = "Lin, {Yu Ju} and Yang, {Che Hua} and Huang, {Jiunn Yuan}",

year = "2016",

month = mar,

doi = "10.1784/insi.2016.58.3.142",

language = "英语",

volume = "58",

pages = "142--144",

journal = "Insight: Non-Destructive Testing and Condition Monitoring",

issn = "1354-2575",

publisher = "British Institute of Non-Destructive Testing",

number = "3",

}

TY - JOUR

T1 - Effect of degradation on non-linear ultrasonic behaviour of aged centrifugally-cast stainless steel

AU - Lin, Yu Ju

AU - Yang, Che Hua

AU - Huang, Jiunn Yuan

PY - 2016/3

Y1 - 2016/3

N2 - The effect of degradation on the behaviour of aged centrifugally-cast austenitic stainless steel (CASS) and its non-linear ultrasonic response was studied. The duplex stainless steel CF8A was aged for 2400 h, 6000 h and 8400 h at 450oC. The CF8A is mainly composed of austenite and δ-ferrite, of which the δ-ferrite will become harder with an increase in ageing time at the test temperature. The experimental results showed that the non-linear ultrasonic parameter increased because of the spinodal decomposition of the δ-ferrite and the formation of precipitates in the aged CASS. In view of the correlation found between the non-linear ultrasonic wave measurement and the mechanical test results, it is suggested that the acoustic non-linearity of duplex stainless steel depends on the microstructure, phase and precipitation.

AB - The effect of degradation on the behaviour of aged centrifugally-cast austenitic stainless steel (CASS) and its non-linear ultrasonic response was studied. The duplex stainless steel CF8A was aged for 2400 h, 6000 h and 8400 h at 450oC. The CF8A is mainly composed of austenite and δ-ferrite, of which the δ-ferrite will become harder with an increase in ageing time at the test temperature. The experimental results showed that the non-linear ultrasonic parameter increased because of the spinodal decomposition of the δ-ferrite and the formation of precipitates in the aged CASS. In view of the correlation found between the non-linear ultrasonic wave measurement and the mechanical test results, it is suggested that the acoustic non-linearity of duplex stainless steel depends on the microstructure, phase and precipitation.

KW - Duplex stainless steel

KW - Non-linear ultrasonics

KW - Spinodal decomposition

UR - http://www.scopus.com/inward/record.url?scp=84962215734&partnerID=8YFLogxK

U2 - 10.1784/insi.2016.58.3.142

DO - 10.1784/insi.2016.58.3.142

M3 - 文章

AN - SCOPUS:84962215734

SN - 1354-2575

VL - 58

SP - 142

EP - 144

JO - Insight: Non-Destructive Testing and Condition Monitoring

JF - Insight: Non-Destructive Testing and Condition Monitoring

IS - 3

ER -

Effect of degradation on non-linear ultrasonic behaviour of aged centrifugally-cast stainless steel

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this