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radiographic inspection model

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047720
EISBN: 978-1-62708-217-4
... by tensile overload from stress concentration at the root of the laser beam weld, which was caused by the sharp notch created by the lack of full weld penetration. Radiographic inspection of all cooling-tube weldments was made mandatory, with rejection stipulated for joints containing subsurface weld-root...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
..., neutron radiographic testing, x-ray diffraction Penetrating rays of x-ray, gamma rays, or neutrons passing through or reflecting from test object cast shadows or patterns on film or digital imaging plates Manufacturing, weld inspection, finding objects in closed containments, metrology of enclosed...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003515
EISBN: 978-1-62708-180-1
...-surface discontinuities and heat treatment condition. Plating and nonmetallic coating thickness measurements are also possible. Inspection depth limited to less than one inch. Requires properly trained personnel with considerable application experience Radiographic Electromagnetic rays (x-rays...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006763
EISBN: 978-1-62708-295-2
... with computed tomography radiography. A computed tomography radiograph of the fractured exemplar crankshaft fracture surface is shown in Fig. 35 . Fig. 34 Setup for computed tomography radiographic inspection of exemplar fractured crankshaft Fig. 35 Computed tomography radiographic image...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006808
EISBN: 978-1-62708-329-4
... to 50 ft.). The reformer tubes were inspected after ten years of service. Several tubes in the hottest section elevation of the heater showed bulging at the welds. Radiographic inspection of these butt welds showed that cracking was occurring on the inside diameter of the weld roots. The operating tube...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001594
EISBN: 978-1-62708-229-7
... inspection (NDI) methods used at power plants include visual (VT), dye penetrant (PT), ultrasonic (UT), and radiographic (RT) techniques. Only UT and RT are capable of examining the weld root in an installed socket-welded fitting. Fatigue cracks that initiate at the axial weld toe are connected to the OD...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001803
EISBN: 978-1-62708-241-9
... Introduction Selected Cases from the Literature Materials and Methods Results and Discussion Conclusions References References 1. Smith G.K and Black J. : “ Models for Systemic Effects of Metallic Implants ,” Proc. Int. Symp. on Retrieval and Analysis of Orthopaedic Implants...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
...Abstract Abstract This article briefly reviews the general causes of weldment failures, which may arise from rejection after inspection or failure to pass mechanical testing as well as loss of function in service. It focuses on the general discontinuities observed in welds, and shows how some...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006819
EISBN: 978-1-62708-329-4
... been properly designed, fitness-for-service methods can be used to determine the current extent of fatigue damage, to realistically estimate remaining fatigue life, and to establish appropriate inspection intervals. Moreover, inspection (nondestructive examination) is a critical aspect of managing...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
...Abstract Abstract This article provides an overview of the structural design process and discusses the life-limiting factors, including material defects, fabrication practices, and stress. It details the role of a failure investigator in performing nondestructive inspection. The article...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006802
EISBN: 978-1-62708-329-4
... Determining the Life-Limiting Mechanism Determining the Rate of Crack Growth or Time for Degradation Determining the Operation History Validation of Life Assessment Models Nondestructive inspection methodologies were and still are used for quality control of structures and components...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006822
EISBN: 978-1-62708-329-4
... or stress-corrosion cracking (SCC) is suspected or if mechanical damage (i.e., gouging or denting) is evident Radiographic inspection of welds or potential anomalies. Computed tomography may be used for smaller specimens or sections. Ultrasonic testing (UT) or phased-array UT to characterize cracklike...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... they require radiographic techniques to discover. Macroporosity refers to pores that are large enough to see with the unaided eye on radiographic inspection, while microporosity refers to pores that are not visible without magnification. Microporosity is found not only in castings but also in heavy section...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001812
EISBN: 978-1-62708-241-9
...-8 20. Gordon P. : Metal-induced embrittlement of metals—an evaluation of embrittler transport mechanisms . Metal. Trans. A 9A , 267 – 273 ( 1978 ) 10.1007/BF02646710 21. Clegg R.E. : A fluid flow based model to predict liquid metal induced embrittlement crack...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006813
EISBN: 978-1-62708-329-4
... Recommendations Effects of Auxiliary Manufacturing Procedures Effects of Inspection Procedures Causes of Failures in Heat Exchangers Heat-Transfer Surfaces Examination of Failed Parts Corrosion Corrosion Fatigue Fracture Appearance Thermal Stresses Mechanical Stresses Effects...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
... design and manufacturing to anticipated service, operation inspection, and maintenance. Fatigue Properties and Design Life The design of components against fatigue fracture may involve several considerations of irregular loading, variable temperature, and environment. The three design-life methods...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... environments at tensile stresses well below the yield strength of the metal. The failures often take the form of fine cracks that penetrate deeply into the metal, with little or no evidence of corrosion on the nearby surface or distortion of the surrounding structure. Therefore during casual inspection...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... as well as experience and awareness in all stages of the life of a component. This includes the critical assessment of design methods, the proper selection of materials and manufacturing methods, and the knowledge of anticipated service conditions, including manufacturing and operation inspections as well...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... Iron Penetration in Sand Molds, Part I: Physics of Penetration Defects and Penetration Model, Paper 96-206 , AFS Trans. , Vol 104 , 1996 13. Schey J.A. , Introduction to Manufacturing Processes , 2nd ed. , McGraw-Hill , 1987 14. Piwonka T. , Design for Casting, Materials...