NONDESTRUCTIVE DETECTION OF FATIGUE CRACKS IN PM-304 STAINLESS-STEEL BY INTERNAL-FRICTION AND ELASTICITY

被引：40

作者：

MCGUIRE, SM ^{[1
]}

FINE, ME ^{[1
]}

BUCK, O ^{[1
]}

ACHENBACH, JD ^{[1
]}

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011

来源：

JOURNAL OF MATERIALS RESEARCH | 1993年 / 8卷 / 09期

关键词：

D O I：

10.1557/JMR.1993.2216

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A resonant frequency mechanical vibration method was used to nondestructively detect fatigue crack initiation in notched 304 stainless steel samples prepared by powder metallurgy. This method allowed the determination of an effective elastic modulus and the direct measurement of internal friction. Changes in the modulus and internal friction were found to correlate well with the presence of 50 mum long fatigue cracks. The length of the through cracks initiated at the notch was measured using surface replicas, which were examined in a scanning electron microscope. Small crack growth rate data were also obtained and plotted versus the stress intensity factor. The crack growth rates were compared with long crack data performed on compact tension samples of this material. The short cracks grew at intensity factors below the long crack threshold stress intensity factor.

引用

页码：2216 / 2223

页数：8

共 12 条

[1] REFLECTION AND TRANSMISSION OF ELASTIC-WAVES BY A PERIODIC ARRAY OF CRACKS [J].

ANGEL, YC ;

ACHENBACH, JD .

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1985, 52 (01) :33-41

[2]

ATANASIU NE, 1983, MECHANICAL BEHAVIO 4, V2, P841

[3] ELASTIC-MODULI OF A CRACKED SOLID [J].

BUDIANSKY, B ;

OCONNELL, RJ .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1976, 12 (02) :81-97

[4]

FINE ME, 1952, ASTM SPEC TECH PUBL, V129, P43

[5]

Joshi N. R., 1972, Engineering Fracture Mechanics, V4, P577, DOI 10.1016/0013-7944(72)90067-7

[6] FATIGUE CRACK TIP DEFORMATION PROCESSES AS INFLUENCED BY THE ENVIRONMENT [J].

MCEVILY, AJ ;

VELAZQUEZ, JLG .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1992, 23 (08) :2211-2221

[7] INFLUENCE OF DEFORMATION-INDUCED MARTENSITE ON FATIGUE CRACK-PROPAGATION IN 304-TYPE STEELS [J].

MEI, Z ;

MORRIS, JW .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1990, 21 (12) :3137-3152

[8]

MURAKAMI Y, 1987, STRESS INTENSITY FAC, V1, P255

[9]

MURAKAMI Y, 1987, STRESS INTENSITY FAC, V1, P78

[10] ULTRASONIC ATTENUATION AND VELOCITY IN HOT SPECIMENS BY MOMENTARY CONTACT METHOD WITH PRESSURE COUPLING, AND SOME RESULTS ON STEEL TO 1200 DEGREES C [J].

PAPADAKIS, EP ;

FOWLER, KA ;

CARNEVALE, EH ;

LYNNWORTH, LC .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1972, 52 (03) :850-+

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