1-20 of 53 Search Results for

X-ray radiography

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720393
EISBN: 978-1-62708-305-8
... evaluation methods to flaw detection in P/M parts. The nondestructive evaluation methods covered are mechanical proof testing, metallography, liquid penetrant crack detection, filtered particle crack detection, magnetic particle crack inspection, direct current resistivity testing, x-ray radiography...
Image
Published: 01 April 2013
Fig. 7 Schematic of flaws and their x-ray images. Defect types that can be detected by x-ray radiography are those that change the attenuation of the transmitted x-rays. Source: Ref 4 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720233
EISBN: 978-1-62708-305-8
... Abstract This chapter discusses radiography methods using x-rays, gamma rays, and neutrons. It begins with a discussion on the applications and principles of radiography followed by sections providing information on the sources of radiation, classifications, and characteristics of x-ray tubes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780093
EISBN: 978-1-62708-268-6
..., leak paths, and other conditions not readily apparent using visual or other assessment techniques. Techniques in this area include x-ray and n-ray radiography, dye penetrant inspection, fluorescent dye pressure testing, and magnafluxing. Mechanical and environmental approaches for evaluating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270019
EISBN: 978-1-62708-301-0
... of the induced current. The method is useful for detecting surface and subsurface flaws, for sorting dissimilar metals, for detecting variations in composition and microstructure, and for measuring the thickness of nonconductive coatings. The method is limited to conducting materials. Radiography Using x-rays...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930039
EISBN: 978-1-62708-359-1
... A number of techniques are widely used to assess the presence of surface and subsurface defects in welds. The most common of these are liquid penetrant inspection for surface cracks, magnetic particle inspection, x-ray radiography, and ultrasonic inspection. Penetrant inspection involves the application...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870333
EISBN: 978-1-62708-314-0
... for maximum sensitivity. Some depth resolution can be obtained by tilting either the x-ray source or the part. Fig. 12.12 Typical nondestructive inspection (NDI) reference standards Several forms of radiography are normally employed to inspect composite assemblies. Static x-ray units, like...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
..., provides a cross-sectional view of an inspection object. All the previous terms are mainly used in connection with inspection that involves penetrating electromagnetic radiation in the form of x-rays or gamma rays. Neutron radiography refers to radiographic inspection using neutrons rather than...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... of changing the x-ray energy for changes in total material thickness. These capabilities have significantly improved productivity and have reduced costs, thus enabling higher percentages of castings to be inspected and providing instant feedback after repair procedures. Real-time digital radiography images...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050245
EISBN: 978-1-62708-311-9
... account for about 50% of all NDT testing, with ultrasonic and x-ray methods accounting for about another third. Eddy current accounts for approximately 10%. All other methods were about 2%. Table 12.4 provides examples on the relative uses and merits of various NDT methods from an operational viewpoint...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030360
EISBN: 978-1-62708-282-2
... of available techniques is reduced. For example, x-ray radiography is commonly carried out at the fabrication stage but is generally not a realistic inspection method in service, where gamma radiography is generally employed due to its portability and independence from an external power source...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110067
EISBN: 978-1-62708-247-1
... high resolution C-scan equipment. Prior to acoustic inspection, die attach inspection was performed primarily with x-ray radiography. Experience soon showed that reflected sound indicates the true percent of the total area of a die attach interface that is bonded while x-ray inspection reveals only...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200197
EISBN: 978-1-62708-354-6
... discontinuities. Iridium 192 is used as a radiation source primarily for casting section under 1.5 in. (28 mm), and Cobalt 60 is generally employed for sections between 1 and 6 in. (25-152 mm). More powerful x-ray machines or linear accelerators are chosen by foundries producing heavy sections where exposure time...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930085
EISBN: 978-1-62708-359-1
... radiography is carried out with x-rays from tubes that operate in a voltage range between 120 and 400 kV. Higher voltages can be achieved using special equipment. As the thickness of the test object increases, the amount of kilovolts also must increase to keep the exposure time down to 4 to 6 min, typically...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930057
EISBN: 978-1-62708-359-1
... in certain cases, because of the small effect they have on x-ray absorption. As will be described later, however, lack of sidewall fusion is readily detected by radiography. Ultrasonically, both types of discontinuities often appear as severe, almost continuous, linear porosity because of the nature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720411
EISBN: 978-1-62708-305-8
... these discontinuities in certain cases, because of the small effect they have on x-ray absorption. However, lack of sidewall fusion is readily detected by radiography. Ultrasonically, both types of discontinuities often appear as severe, almost continuous, linear porosity because of the nature of the unbonded areas...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030147
EISBN: 978-1-62708-349-2
.... The NDI techniques, including through-transmission ultrasound (C-scan) and x-ray radiography methods, are excellent methods for determining the void area in composite materials but are limited to the through-thickness direction and lack morphological detail of the voids throughout the thickness ( Ref 16...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910475
EISBN: 978-1-62708-250-1
.... Specialized equipment required B.7 Radiography Penetration of sample/structure (and subsequent photographic recording) by x-rays or γ-rays. Extent of penetration depends on thickness and on material and its contained cracks and defects. Volumetric incidence/extent/ location/orientation of cracks...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400245
EISBN: 978-1-62708-258-7
..., an x-ray tube, or a vacuum tube. In the rst of these, it is negative; in the other three, positive. In a battery or electrolytic cell, it is the electrode where oxidation occurs. Contrast with cathode. anode aperture. In electron microscopy, the opening in the accelerating voltage anode shield...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
... or magnification levels, ranging from a visual or lowmagnification (~20×) examination to magnifications over 1,000,000× with electron microscopes. Metallography may also include the examination of crystal structure by techniques such as x-ray diffraction. The most familiar tool of metallography is the light...