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Lamellar tearing

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Image
Published: 01 November 2011
Fig. 5.22 Typical location for lamellar tearing in a T-joint. Source: Ref 5.10 More
Image
Published: 01 November 2012
Fig. 21 Typical location for lamellar tearing in a T-joint. Source: Ref 15 More
Image
Published: 01 August 1999
Fig. 5.14 (Part 1) Through-thickness ductility of lamellar tearing in rolled plate. (a) Lamellar tear adjacent to a highly restrained fillet weld. Nitric-acetic acid. 1×. (b) Lamellar tear along a central segregate containing numerous elongated manganese sulfide inclusions. Unetched. 100 More
Image
Published: 01 April 2013
Fig. 7 Lamellar tear caused by thermal contraction strain. Source: Ref 1 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560081
EISBN: 978-1-62708-291-4
...-manganese and niobium- and vanadium-containing steels, and high-strength low-alloy steels. Chapter 5 discusses the composition, microstructure, and properties of these workhorse materials and explains how to identify the cause of production-related issues such as lamellar tearing and ferrite-pearlite...
Image
Published: 01 August 1999
carbon-manganese-niobium steel, also treated with rare earth metals. Test piece (cut in short transverse direction) containing very small globular sulfide inclusions. 65% reduction of area. Unetched 500×. (h) Mechanism by which lamellar tears develop. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... Four types of cracking are a concern in welded structures: hot cracks, heat-affected zone (HAZ) microfissures, cold cracks, and lamellar tearing. Solidification Cracking (Hot Cracking) Hot cracks are solidification cracks that occur in the fusion zone near the end of solidification. They result...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... that are trapped by the solidifying metal as they try to escape from the liquid and semisolid metal Small crevices in the mold walls, which cause the metal to tear during the stripping operation Spatter during pouring, which produces globs of metal frozen on the mold walls because of the great difference...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720411
EISBN: 978-1-62708-305-8
... or concentration of impurities or alloying elements that arises during the solidification of the weld Lamellar tearing: A type of cracking that occurs in the base metal or heat affected zone (HAZ) of restrained weld joints that is the result of inadequate ductility in the through-the-thickness direction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140039
EISBN: 978-1-62708-335-5
... by modifier additions. Fig. 4.5 (Part 1) Variations in degrees and types of aluminum-silicon eutectic modification. (a) Class 1, fully unmodified structure. 200×. (b) Same as (a) but at 800×. (c) Class 2, lamellar structure. 200×. (d) Same as (c) but at 800×. (e) Class 3, partial modification. 200×. (f...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630101
EISBN: 978-1-62708-270-9
... fracture may have certain areas with intergranular fracture and others with dimple rupture. No true fatigue striations are possible in a single-overload fracture; however, there may be somewhat similar-appearing parallel ridges resulting from fracture through pearlite or other lamellar structures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130503
EISBN: 978-1-62708-284-6
.... 1 ) 2 Inclusions W  Non-metallic slag(2b) 3 Lack of fusion (b) W 4 Lack of joint penetration (b) W 5 Undercut (b) BM 6 Underfill (b) W 7 Overlap (b) W 8 Laminations (b) BM 9 Delaminations (b) BM 10 Seams and laps (b) BM 11 Lamellar tears...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.9781627082914
EISBN: 978-1-62708-291-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480113
EISBN: 978-1-62708-318-8
.... For medium-strength, large-section-size alloys, the U.S. Navy’s dynamic tear test measures fracture toughness properties of the full section. This test requires a bar 457 by 127 by 25 mm (18 by 5 by 1 in.) that contains a brittle weld (to start a brittle crack) on the tension edge. When the specimen...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610055
EISBN: 978-1-62708-303-4
... resulting from fracture through pearlite or other lamellar structures or resulting from mechanical rubbing either during or after the fracture. These spurious marks can resemble striations that can confuse the analyst, who has a difficult task even without these complications. Of course, if cyclic loading...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.9781627082709
EISBN: 978-1-62708-270-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410163
EISBN: 978-1-62708-265-5
... dendritic chemical segregation has been shown in Fig. 9.20(b) . The pearlitic areas appear solidly black because the light microscope cannot resolve the fine lamellar ferrite-cementite spacing of the pearlite. Many other good examples of ferrite-pearlite banding are shown in the literature, especially...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.9781627082617
EISBN: 978-1-62708-261-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140007
EISBN: 978-1-62708-335-5
... is a weak eutectic modifier and a more lamellar eutectic can be achieved with antimony. Higher solidification rates also promote a finer unmodified eutectic microstructure. Aluminum-silicon alloys exhibit low specific gravity and coefficients of thermal expansion. In hypereutectic aluminum-silicon...