A review of non-destructive techniques for the detection of creep damage in power plant steels

Sposito, G.; Ward, Christopher; Cawley, P.; Nagy, Péter B.; Scruby, C. B.

doi:10.1016/j.ndteint.2010.05.012

Cited by 165 publications

(82 citation statements)

References 114 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Various non-destructive methods have been used to evaluate material degradation due to creep [1][2][3][4][5][6][7]. Among them one can indicate a magnetoacoustic emission technique [2,3] or Barkhausen noise method [4,5] for example.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Prediction of the Mechanical Properties of P91 Steel by Means of Magneto-acoustic Emission and Acoustic Birefringence

2017

View full text Add to dashboard Cite

The paper describes an application of nondestructive volumetric magnetic and ultrasonic techniques for evaluation of the selected mechanical parameter variations of P91 steel having direct influence on its suitability for further use in critical components used in power plants. Two different types of deformation processes were carried out. First, a series of the P91 steel specimens was subjected to creep and second, one to plastic deformation in order to achieve the material with an increasing strain level up to 10%. Subsequently, non-destructive and destructive tests were performed. Magnetic methods based on measurements of magnetoacoustic emission and magnetic hysteresis loop changes as well as the ultrasonic method based on acoustic birefringence measurements, were applied. Finally, the static tensile tests were carried out in order to evaluate the mechanical parameters. It is shown that some relationships between the selected parameters coming from the non-destructive and destructive tests may be formulated.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Among them one can indicate a magnetoacoustic emission technique [2,3] or Barkhausen noise method [4,5] for example. A review of various non-destructive techniques that allow the evaluation of creep damage progress was presented by Sposito et al [6].…”

Section: Introductionmentioning

confidence: 99%

Prediction of the Mechanical Properties of P91 Steel by Means of Magneto-acoustic Emission and Acoustic Birefringence

2017

View full text Add to dashboard Cite

show abstract

“…The non-destructive testing operation of an object does not limit to detecting potential defects [1][2][3]. Even if the choice of process, methodology, and hardware was carried out beforehand, consider a procedure with the following objectives: reliability of the examination, reproducibility, identification, characterization and finally archiving of control results [1].…”

Section: Introductionmentioning

confidence: 99%

Time-Frequency Representations Adapted to the Characterization of Steels Damaged by the Environment

Mountassir¹,

Bassidi²,

Aziam³

et al. 2017

IJIES

View full text Add to dashboard Cite

Abstract:This article intends to present a time-frequency representations adapted to the characterization of steels damaged by the environment. These techniques are applied for analyzing experimental acoustic signal backscattered by corroded steel immersed in water. These signals are processed using a spectrogram analysis, Pseudo Wigner-Ville Distribution PWV and continuous wavelet, whose interest is to provide a signal representation in time-frequency. The goal here is whether each pattern of representation is due to corrosion or default in the plate. The use of timefrequency representations for characterizing steels damaged by the environment proves interesting because of their ability to localize the energy of the signals in a two-dimensional plane. However, bearing in mind that these representations should check drastic properties about the studied signal, choose a representation adapted case by case. The results obtained highlight the advantage of using time-frequency representations for the study of the acoustic wave's propagation in corroded steels.

show abstract

“…The most common degradation mechanism occurs for engineering components operating at high temperature is creep [3][4][5]. Creep is time dependent and in consequence permanent plastic deformation at high temperature and at a stress lower than the high temperature yield stress [6,7]. There are some methods to assess the remaining life of the components due to creep damage.…”

Section: Introductionmentioning

confidence: 99%

“…There are some methods to assess the remaining life of the components due to creep damage. Previous researchers [6,8] had reviewed some non-destructive techniques for creep damage detection such as replication, ultrasonic, hardness test, eddy current, strain measurement, etc. and replication, which is based on microstructural changes is still a good technique.…”

Section: Introductionmentioning

confidence: 99%

Creep damage assessment of a 50 MW steam turbine shaft

Nurbanasari

Suratman

2015

MATEC Web of Conferences

View full text Add to dashboard Cite

Abstract. This paper reported the evaluation of a 50 MW steam turbine shaft that has exceeded the designed lifetime (30 years). The inspection of turbine is a mandatory for safety and continued reliable operation. The shaft was made of nickel-chromium-molybdenum alloy steel. The turbine operated in the range temperature of 500-600 o C, and creep was considered to be a major damage mechanism. The remaining life assessment of the turbine shaft was also conducted using replication technique. The replica samples were taken from 125 position distributed along the turbine shaft. The microstructural analysa of replicas showed that creep had occurred, which was indicated by the cavities formation at the grain boundaries. After evaluation and assessment, it can be concluded that the turbine shaft still can be used however it needs to be re-inspected within 6 months.

show abstract

A review of non-destructive techniques for the detection of creep damage in power plant steels

Cited by 165 publications

References 114 publications

Prediction of the Mechanical Properties of P91 Steel by Means of Magneto-acoustic Emission and Acoustic Birefringence

Prediction of the Mechanical Properties of P91 Steel by Means of Magneto-acoustic Emission and Acoustic Birefringence

Time-Frequency Representations Adapted to the Characterization of Steels Damaged by the Environment

Creep damage assessment of a 50 MW steam turbine shaft

Contact Info

Product

Resources

About