The development of a 2D ultrasonic array system for the in situ inspection of single crystal turbine blades

C. J L Lane; A. K. Dunhill; B. W. Drinkwater; P. D. Wilcox

doi:10.1063/1.4716315

The development of a 2D ultrasonic array system for the in situ inspection of single crystal turbine blades

C. J L Lane^*, A. K. Dunhill, B. W. Drinkwater, P. D. Wilcox

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

5 Citations (Scopus)

Abstract

Modern jet-engine turbine blades are cast from single crystals of nickel-based superalloys because of the excellent mechanical properties that these materials exhibit at high temperatures. However, the anisotropic behavior of single crystals causes difficulties when using ultrasound to inspect these components for defects that could potentially initiate in-service. This paper describes the development of a 2D ultrasonic array system for the in situ inspection of these components. The problems associated with the inspection of anisotropic single crystal materials such as the directional dependence of the ultrasonic velocity, beam directivities in anisotropic media and the variation in the crystallographic orientation, are all addressed in this paper. In addition, constraints regarding access to the inspection location within the engine are discussed. Finally, the defect detection sensitivity and sizing capability of the developed system is evaluated.

Original language	English
Title of host publication	AIP Conference Proceedings
Pages	865-872
Number of pages	8
Volume	1430
Edition	31
DOIs	https://doi.org/10.1063/1.4716315
Publication status	Published - 13 Jul 2012
Event	38th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2011) - Burlington, VT, United States Duration: 17 Jul 2011 → 22 Jul 2011 Conference number: 38

Conference

Conference	38th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2011)
Abbreviated title	QNDE 2011
Country/Territory	United States
City	Burlington, VT
Period	17/07/11 → 22/07/11

Keywords

Elastic Anisotropy
Single Crystals
Ultrasonic Arrays

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title = "The development of a 2D ultrasonic array system for the in situ inspection of single crystal turbine blades",

abstract = "Modern jet-engine turbine blades are cast from single crystals of nickel-based superalloys because of the excellent mechanical properties that these materials exhibit at high temperatures. However, the anisotropic behavior of single crystals causes difficulties when using ultrasound to inspect these components for defects that could potentially initiate in-service. This paper describes the development of a 2D ultrasonic array system for the in situ inspection of these components. The problems associated with the inspection of anisotropic single crystal materials such as the directional dependence of the ultrasonic velocity, beam directivities in anisotropic media and the variation in the crystallographic orientation, are all addressed in this paper. In addition, constraints regarding access to the inspection location within the engine are discussed. Finally, the defect detection sensitivity and sizing capability of the developed system is evaluated.",

keywords = "Elastic Anisotropy, Single Crystals, Ultrasonic Arrays",

author = "Lane, {C. J L} and Dunhill, {A. K.} and Drinkwater, {B. W.} and Wilcox, {P. D.}",

year = "2012",

month = jul,

day = "13",

doi = "10.1063/1.4716315",

language = "English",

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volume = "1430",

pages = "865--872",

booktitle = "AIP Conference Proceedings",

edition = "31",

note = "38th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2011), QNDE 2011 ; Conference date: 17-07-2011 Through 22-07-2011",

}

Lane, CJL, Dunhill, AK, Drinkwater, BW & Wilcox, PD 2012, The development of a 2D ultrasonic array system for the in situ inspection of single crystal turbine blades. in AIP Conference Proceedings. 31 edn, vol. 1430, pp. 865-872, 38th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2011), Burlington, VT, United States, 17/07/11. https://doi.org/10.1063/1.4716315

TY - GEN

T1 - The development of a 2D ultrasonic array system for the in situ inspection of single crystal turbine blades

AU - Lane, C. J L

AU - Dunhill, A. K.

AU - Drinkwater, B. W.

AU - Wilcox, P. D.

N1 - Conference code: 38

PY - 2012/7/13

Y1 - 2012/7/13

N2 - Modern jet-engine turbine blades are cast from single crystals of nickel-based superalloys because of the excellent mechanical properties that these materials exhibit at high temperatures. However, the anisotropic behavior of single crystals causes difficulties when using ultrasound to inspect these components for defects that could potentially initiate in-service. This paper describes the development of a 2D ultrasonic array system for the in situ inspection of these components. The problems associated with the inspection of anisotropic single crystal materials such as the directional dependence of the ultrasonic velocity, beam directivities in anisotropic media and the variation in the crystallographic orientation, are all addressed in this paper. In addition, constraints regarding access to the inspection location within the engine are discussed. Finally, the defect detection sensitivity and sizing capability of the developed system is evaluated.

AB - Modern jet-engine turbine blades are cast from single crystals of nickel-based superalloys because of the excellent mechanical properties that these materials exhibit at high temperatures. However, the anisotropic behavior of single crystals causes difficulties when using ultrasound to inspect these components for defects that could potentially initiate in-service. This paper describes the development of a 2D ultrasonic array system for the in situ inspection of these components. The problems associated with the inspection of anisotropic single crystal materials such as the directional dependence of the ultrasonic velocity, beam directivities in anisotropic media and the variation in the crystallographic orientation, are all addressed in this paper. In addition, constraints regarding access to the inspection location within the engine are discussed. Finally, the defect detection sensitivity and sizing capability of the developed system is evaluated.

KW - Elastic Anisotropy

KW - Single Crystals

KW - Ultrasonic Arrays

UR - http://www.scopus.com/inward/record.url?scp=84863618346&partnerID=8YFLogxK

U2 - 10.1063/1.4716315

DO - 10.1063/1.4716315

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:84863618346

SN - 9780735410138

VL - 1430

SP - 865

EP - 872

BT - AIP Conference Proceedings

T2 - 38th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE 2011)

Y2 - 17 July 2011 through 22 July 2011

ER -

The development of a 2D ultrasonic array system for the in situ inspection of single crystal turbine blades

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Keywords

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