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A Study on the Evaluation of Material Degradation of 1Cr-lMo-0.25V Steel using Ultrasonic Techniques
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 Title & Authors
A Study on the Evaluation of Material Degradation of 1Cr-lMo-0.25V Steel using Ultrasonic Techniques
Kim, Jeong-Pyo; Seok, Chang-Seong;
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 Abstract
It's required mechanical properties of in-service facilities to maintain safety operation in power plants as well as chemical plants. In this studdy the four classes of the thermally aged 1Cr-lMo-0.25V specimens were prepared using an artificially accelerated aging method at 630. Ultrasonic tests, tensile tests, KIC/ tests and hardness tests were performed in order to evaluate the degree of degradation of the material. The mechanical properties were decreased as degraded, but the attenuation coefficient and the harmonic generation level of a ultrasonic signal were increased. Expecially the nonlinear parameter derived from the harmonic generation level is sensitive and will be a good parameter to evaluate the material degradation.
 Keywords
Material Properties;Nonlinear Parameter;Degradation;Ultrasonic Technique;1Cr-lMo-0.25V steel;
 Language
Korean
 Cited by
1.
초음파 파라미터와 파괴인성치의 상관관계에 관한 연구,김정표;박재실;배봉국;석창성;

대한기계학회논문집A, 2005. vol.29. 2, pp.232-238 crossref(new window)
2.
비파괴적인 재료물성치 평가에 관한 연구,김형익;김정표;석창성;

한국정밀공학회지, 2005. vol.22. 3, pp.130-136
 References
1.
권재도, 1992, '장기사용 Cr-Mo강 열화재의 파괴인성평가와 수명 예측,' 대한기계학회논문집, 제16권, pp. 1421-1428

2.
남승훈, 김엄기, 유광민, 1998, '전기비저항을 이용한 1Cr-1Mo-0.25V강의 인성열화의 비파괴적평가,' 대한기계학회논문집 A, pp. 814-820

3.
한상인, 윤기봉, 정세희, 1997, '입계부식법에 의한 사용중인 화력발전소 요소의 잔여수명 평가,' 대한기계학회논문집 A, pp. 22-31

4.
Ruud, C. O., and Green, E., 1984, 'Nondestructive Methods for Material Property Determination, Plenum. Press, pp. 151-160

5.
Sachse, W., and ;Pao, Yih-Hsing., 1978, 'On the Determination of Phase and Group Velocities of Dispersive Waves in Solids,' J. Appl. Phys., vol. 49, pp. 4320-4327 crossref(new window)

6.
Pollard, H. F., 1977, 'Sound Waves in Solids,' Pion, London, pp. 23-77

7.
김정표, 김의준, 윤석왕, 1996, '고체내 결함의 위치추정을 위한 비선형 음향 탐지법,' 한국음향학회 학술발표대회 논문집 wp15rnjs 1(s)gh, Vol. 15, No. 1(s), pp. 365-368

8.
Sutin, A. M., Zaitsev, V. Y. and Belyeva, I. Y., 1992, 'Nonlinear Interaction of Acoustical Wave due to Cracks Detection,' J. Vibration and Control., pp. 786-793

9.
Breazeale, M. A., Ford, J., 1998, Acoustic Source Book, McGraw-Hill, pp. 57-68

10.
정회돈, 1991, '고온설비의 경년열화와 측정법,' 대한기계학회지, 제31권, 제3호, pp. 251-260

11.
윤기봉, 윤석호, 김승태, 남승훈, 서창민, 1994, '시효열화시킨 1Cr-1 Mo-0.25V 강의 고온에서의 Jic 및 Tmat의 평가,' 대한기계학회논문집, pp. 2860-2870

12.
1995, 'Standard Test Method for Tension Testing of Metallic Materials,' ASTM E 8-00, Annual Book of ASTM Standard, pp. 56-76

13.
1995, 'Standard Test Method for Plane-Strain Fracture Toughness of Metallic Materials,' ASTME 399-90, Annual Book of ASTM Standard, pp. 414-442

14.
Lester, W., Scherr, Jr., and Song Sung Jin, 1992, 'Ultrasonic Scattering by a Flat-bottom in Immersion Testing : an Analytical Model,' J. Acoust. Soc. Am., 92(1), pp. 478-486 crossref(new window)

15.
Hurley, D. C., Balzar, D., Purtscher, P. T., and K. W. Hollman, 1998, 'Nonlinear Ultrasonic Parmeter in Quenched Martensitic Steel,' Journal of Applied Physics, Vol(83), pp. 4584-4588 crossref(new window)

16.
허정훈, 서창민, 남승훈, 1999, '시효열화시킨 1Cr-1Mo-0.25V강의 고온하의 회전굽힘 피로강도에 관한 연구,' 대한기계학회논문집 A, pp. 2819-2832

17.
남승훈, 박종화, 김엄기, 1999, '소형 샤르피 충격시험편을 이용한 1Cr-1Mo-0.25V강의 인성 열화도 평가,' 대한기계학회논문집 A, pp. 2303-2308

18.
Dieter, G. E., 1986, Mechanical Metallurgy, McGraw-Hill, pp. 72-84