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Woody fracture

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Published: 30 August 2021
Fig. 23 SEM micrographs of the overload fracture showing a typical woody fracture appearance More
Image
Published: 01 January 1987
Fig. 2 Sketches from R.A.F. de Réaumur ( Ref 10 ) defining fracture aspects that give evidence of the degree of conversion of iron to steel by the cementation process. (a) Woody fracture, but without the distinctly clustered appearance of the fracture in Fig. 1(r) . (b) Woody fracture More
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001830
EISBN: 978-1-62708-181-8
... by a woody appearance ( Fig. 1r ) Fig. 1 Sketches from R.A.F. de Réaumur ( Ref 10 ) depicting seven categories of fracture appearance in iron and steel. (a) Type I fracture; large mirrorlike facets. (b) Same as (a), but as viewed with a hand lens. (c) Type II fracture; smaller facets and more...
Image
Published: 01 January 1987
Fig. 21 Surface of an impact fracture in a notched specimen of wrought iron. The longitudinal stringers of slag in the material are parallel to the direction of fracture, which gives the surface this typically “woody” appearance. Compare with Fig. 22 . 6× More
Image
Published: 01 January 1987
Fig. 270 Fracture surface of spring at right side in Fig. 269 , shown at higher magnification. The nucleus of the fatigue crack is clearly visible on the wire surface at top, with a succession of beach marks fanning out below it. The surface of the zone of final fast fracture appears More
Image
Published: 01 January 1987
Fig. 466 Impact fracture in a specimen of AMS 6434 steel quenched and then tempered at 205 °C (400 °F) to a yield strength of about 1550 MPa (225 ksi) and broken at −196 °C (−321 °F), showing a woody type of cleavage-fracture surface. TEM p-c replica, 210× More
Image
Published: 01 January 2002
Fig. 10 Scanning electron microscope micrograph of typical eye fracture morphology consisting of woody, ductile features. 500× More
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Published: 30 August 2021
Fig. 10 Scanning electron micrograph of typical eye fracture morphology consisting of woody, ductile features. Original magnification: 500× More
Image
Published: 01 January 1987
; an unusual type, with tiny facets in a fibrous background. (p) Detail of fibrous area in (n). (q) Detail of a small facets in (n). (r) Type VII fracture; woody appearance. More
Image
Published: 01 January 1987
Fig. 112 Fatigue fracture through a region of unfavorable grain flow and large inclusions in an aircraft landing-gear axle forged from AISI 4340 steel. Several fatigue crack origins were found in region A. Numerous small discontinuous marks nearly perpendicular to the direction of crack More
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000613
EISBN: 978-1-62708-181-8
.... Jensen, Lockheed-Georgia Company) Fig. 752, 753, 754, 755 Fracture due to quench cracking of discs for circular saw blades. Parts were made of a martempered low-alloy tool steel similar to type 234. Fig. 752 : Woody fracture surface of saw disc that broke when dropped. 13×. Fig. 753 : Fine...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006836
EISBN: 978-1-62708-329-4
... 0.6 μm near the overload fracture, indicating that at least 500 load cycles were associated with the fatigue crack progression ( Fig. 22 ). The overload portion of the fracture followed the elongated grains (a “woodyfracture) ( Fig. 23 ) and should not be confused with intergranular fracture...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000601
EISBN: 978-1-62708-181-8
... was in direction of arrow. SEM, 300× Fig. 21 Surface of an impact fracture in a notched specimen of wrought iron. The longitudinal stringers of slag in the material are parallel to the direction of fracture, which gives the surface this typically “woody” appearance. Compare with Fig. 22 . 6× Fig...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000607
EISBN: 978-1-62708-181-8
... at top, with a succession of beach marks fanning out below it. The surface of the zone of final fast fracture appears to be quite woody. 15× Fig. 271 Surface of a complex fatigue fracture in a valve spring formed from AISI 1070 steel wire, showing two facets at right angles. 8× Fig. 272...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
.... TEM p-c replicas, all at 2000× Fig. 463 Fig. 464 Fig. 465 Fig. 466 Impact fracture in a specimen of AMS 6434 steel quenched and then tempered at 205 °C (400 °F) to a yield strength of about 1550 MPa (225 ksi) and broken at −196 °C (−321 °F), showing a woody type of cleavage...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001040
EISBN: 978-1-62708-161-0
... percent shear because of woody fracture surfaces caused by stringer-type inclusions, and so on. For these cases, it would be more appropriate to use the lateral expansion and absorbed-energy measurements to obtain a more accurate transition temperature. Fig. 7 Charpy curve of percent shear versus...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001834
EISBN: 978-1-62708-181-8
... Abstract This article presents examples of the visual fracture examination that illustrate the procedure as it applies to failure analysis and quality determination. It describes the techniques and procedures for the visual and light microscopic examination of fracture surfaces...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... the general aspects of fracture modes and mechanisms. The article briefly reviews some mechanistic aspects of ductile and brittle crack propagation, including discussion on mixed-mode cracking. Factors associated with overload failures are discussed, and, where appropriate, preventive steps for reducing...
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
... Abstract This article begins with a discussion of the basic fracture modes, including dimple ruptures, cleavages, fatigue fractures, and decohesive ruptures, and of the important mechanisms involved in the fracture process. It then describes the principal effects of the external environment...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003254
EISBN: 978-1-62708-176-4
... Abstract Mechanical properties are described as the relationship between forces (or stresses) acting on a material and the resistance of the material to deformation (i.e., strains) and fracture. This article briefly introduces the typical relationships between metallurgical features...