1-20 of 928

Search Results for surface discontinuities

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
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003230
EISBN: 978-1-62708-199-3
... Abstract Visual inspection is a nondestructive testing technique that provides a means to detect and examine a variety of surface flaws, such as corrosion, contamination, surface finish, and surface discontinuities. This article discusses the equipment used to aid visual inspection, including...
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
... of detecting surface discontinuities by magnetic-particle inspection, liquid penetrant inspection, and eddy-current testing. The major NDE methods for internal (volumetric) inspection in failure analysis also are described. eddy-current testing liquid penetrant inspection magnetic-particle inspection...
Book Chapter

Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001472
EISBN: 978-1-62708-173-3
... to support molten weld metal Shrinkage voids: Cavity-type discontinuities normally formed by shrinkage during solidification Oxide inclusions: Particles of surface oxides that have not melted and are mixed into the weld metal Lack of fusion (LOF): A condition in which fusion is less than...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003232
EISBN: 978-1-62708-199-3
... Abstract Magnetic-particle inspection is a nondestructive testing technique used to locate surface and subsurface discontinuities in ferromagnetic materials. Beginning with an overview of the applications, advantages, and limitations of magnetic-particle inspection, this article provides...
Image
Published: 01 August 2018
Fig. 44 Eddy current fixturing setup for locating and sizing flaws in Saturn V/S-1C rocket booster tank-wall skin sections using a two-step process. (a) Surface discontinuities with depths ≥5% of skin section thickness are first located with 37 m/min (120 sfm) linear scanner. Radac, rapid More
Image
Published: 15 January 2021
Fig. 20 Application-life diagram showing effects of manufacturing-caused surface discontinuities on service life More
Image
Published: 01 January 2002
Fig. 27 Application-life diagram showing effects of manufacturing-caused surface discontinuities on service life More
Image
Published: 01 January 2002
Fig. 29 Discontinuities that may be encountered in semisolid processing, (a) Surface blisters. 75×. (b) Cold shuts. 225×. (c) Nonfill. 0.5×. (d) Hot tears. 75×. (e) Shrinkage porosity. 40×. (f) Gas porosity. 100× More
Image
Published: 01 August 2018
Fig. 45 Discontinuities on the surfaces of steel billets that can be detected by magnetic-particle inspection. (a) Arrowhead cracks. (b) Longitudinal cracks. (c) Normal seams. (d) Brush seams. (e) Laps. (f) Scabs. See text for discussion. More
Image
Published: 01 June 2024
Fig. 7 Stereomicrograph image of the fracture from a fatigue-tested (load control) additive-manufactured specimen. The fracture face exhibits multiple fatigue origins originating at surface discontinuities associated with the additive manufacturing process. This specimen was built up More
Image
Published: 01 January 1996
” joints for a similar treatment (unshaded bars). Some improvement techniques can cause the weldment to equal the fatigue strength of plain plate (30 ksi). Because of its rolled-in surface discontinuities, plain plate has a K f ≈ 1.43. Source: Ref 8 More
Book Chapter

By David Eisenmann
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006468
EISBN: 978-1-62708-190-0
... Abstract Magnetic-particle inspection is a method of locating surface and subsurface discontinuities in ferromagnetic materials. This article discusses the applications and advantages and limitations of magnetic-particle inspection. It describes magnetic fields in terms of magnetized ring...
Book Chapter

By Victor Kerlins
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
... in forgings and how these discontinuities affect fracture initiation, propagation, and the features of fracture surfaces. cleavage fracture dimple rupture fatigue fracture modes of fracture surface discontinuities tear fracture METALS FAIL in many different ways and for different reasons...
Book Chapter

By Ron Simpson
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006450
EISBN: 978-1-62708-190-0
... heating, the selection of operating frequency is largely governed by skin effect (see the section “ Operating Variables ” in this article). This effect causes the eddy currents to be concentrated toward the surfaces adjacent to the coils carrying currents that induce them. Skin effect becomes more...
Book Chapter

By Rathindra DasGupta
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005344
EISBN: 978-1-62708-187-0
... Abstract The International Committee of Foundry Technical Associations has identified seven basic categories of casting defects: metallic projections, cavities, discontinuities, defective surfaces, incomplete casting, incorrect dimension, and inclusions or structural anomalies. This article...
Book Chapter

By Thomas S. Piwonka
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002484
EISBN: 978-1-62708-194-8
... that designers and foundries can use to obtain maximum performance from cast parts. The article describes the effects of casting discontinuities on properties, including porosity, inclusions, hot tears, metal penetration, and surface defects. A discussion on hot isostatic pressing treatment of castings is also...
Book Chapter

Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006338
EISBN: 978-1-62708-179-5
... Abstract The International Committee of Foundry Technical Associations has identified seven basic categories of casting defects: metallic projections, cavities, discontinuities, defective surfaces, incomplete casting, incorrect dimension, and inclusions or structural anomalies. This article...
Book Chapter

By John A. Griffin
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006336
EISBN: 978-1-62708-179-5
... flaw size that deleteriously affects performance in service. This permits the foundry to design a casting practice that eliminates such discontinuities at minimum cost. Casting defects are discussed in greater detail in the article “Casting Defects” in this Volume. Surface/Near-Surface...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003234
EISBN: 978-1-62708-199-3
... are parallel to the major axis as a result of the manufacturing process. If it is necessary to locate discontinuities that are not parallel to the axis, a probe coil must be used, and either the coil or the part must be rotated during scanning. To detect discontinuities on the inside surface of a tube...
Book Chapter

Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003720
EISBN: 978-1-62708-177-1
... Abstract This article provides an overview of the origin of metallography. It presents information on how to select a section from a specimen and prepare it for macroscopic analysis. The article describes the macroscopic analysis of steel fracture surfaces with emphasis on ductile, brittle...