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dimpling

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Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006421
EISBN: 978-1-62708-192-4
... and nonlubricated environments Various patterns possible such as parallel lines and squares Loading direction crucial with respect to pattern Pattern design elements such as line spacing and angles important Patterned heat treated surfaces and coating possible Laser dimpling Laser based material subtraction...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006323
EISBN: 978-1-62708-179-5
.... (a) The fracture surface shows two separate zones: a flat and bright fracture zone near the specimen surface and a dimpled zone over the rest of the fracture surface. The arrow points to the site of the embrittled zone. Crack initiation and propagation occur immediately, with the fracture propagating through...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000617
EISBN: 978-1-62708-181-8
..., intergranular fracture, grain boundaries, notch and fatigue precrack, dimpled rupture, and fatigue striations of these alloys. fractograph intergranular fracture nickel alloys Fig. 867 Surface of a fracture in a bend-test specimen of Nickel 201 containing 0.02% C, 0.35% Mn, 0.01% S, 0.35% Si...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000623
EISBN: 978-1-62708-181-8
..., 110× Fig. 1142 Higher-magnification view of the fracture surface in Fig. 1141 , typical of fractures produced in this alloy in air after various solution treatments. Entire surface shows dimpled fracture of fine, equiaxed α phase that ruptured in ductile shear. SEM, 1100× Fig. 1143...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
...Abstract 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...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006501
EISBN: 978-1-62708-207-5
.... (a) Beading. (b) Necking Fig. 6 Cross section of a monotube damper with dimpled rod guide to outer tube joint Fig. 7 Example of lock forming Fig. 8 Joining by expanding. (a) Flaring. (b) Upset bulging. (c) Tube assembly via rolling Fig. 9 Internally threaded rivet...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... of (a) IG fracture in ion-nitrided layer of ductile iron (ASTM 80-55-06), (b) transgranular fracture by cleavage in ductile iron (ASTM 80-55-06), and (c) ductile fracture with equiaxed dimples from microvoid coalescence around graphite nodules in a ductile iron (ASTM 65-40-10). Picture widths...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002349
EISBN: 978-1-62708-193-1
... to determine the cause of cracking or crack growth. This article discusses the macroscopic and microscopic basis of understanding and modeling fracture resistance of metals. It describes the four major types of failure modes in engineering alloys, namely, dimpled rupture, ductile striation formation, cleavage...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... Fig. 1 Scanning electron microscopy images of (a) intergranular fracture in ion-nitrided layer of ductile iron (ASTM 80-55-06), (b) transgranular fracture by cleavage in ductile iron (ASTM 80-55-06), and (c) ductile fracture with equiaxed dimples from microvoid coalescence around graphite...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006365
EISBN: 978-1-62708-192-4
... surface in the form of (b) channels and (c) dimples. Source: Ref 47 . Reprinted with permission from M. Sedlacek Fig. 20 Numerically modeled pressure distribution in (a) plane slider, (b) stepped slider, and (c) surface-textured slider. Source: Ref 11 Fig. 21 Combined roughness...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000619
EISBN: 978-1-62708-181-8
... °F) and 20 MPa (3 ksi) and attained to steady-state strain rate at 2.0 × 10 −6 /min, fracturing in 76 h, 54 min. These views show a fine texture of dimples, which resulted from microvoid coalescence, on fairly smooth separated-grain facets. The area at α in the center of Fig. 886 is shown at higher...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000614
EISBN: 978-1-62708-181-8
... of transition from fibrous fracture in the central zone to fracture by shear in the surrounding lip. Visible in the lower portion of the fractograph are the equiaxed dimples (viewed obliquely) that are characteristic of fracture in pure tension; above are the elongated dimples of the shear lip. Note...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000612
EISBN: 978-1-62708-181-8
... of an area in the flat, central region of the fracture surface in Fig. 720 , showing the equiaxed dimples of rather uniform size that are expected in this type of fracture. The scattered ridges produce the fibrous appearance seen at low magnification ( Fig. 720 ). See also Fig. 722 , a higher-magnification...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000621
EISBN: 978-1-62708-181-8
..., with some regions that appear to show clusters of minute dimples (A) and other regions that strongly resemble intergranular fracture (B's). At C is one of the numerous vertical fissures visible in Fig. 1005 , presumably elongated during tension overload. See Fig. 1007 for a higher-magnification view...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000613
EISBN: 978-1-62708-181-8
... and coarse dimples near the blade surface, in the decarburized zone. SEM, 2600×. Fig. 754 : Fibrous zone at center of saw disc in Fig. 752 . Note intergranular fracture along prior-austenite grains. The mechanism is probably related to phosphorus segregation at grain boundaries during austenitizing. SEM...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000601
EISBN: 978-1-62708-181-8
... in the form of FeO. The fracture surface contains dimples that initiated at globular FeO inclusions averaging 5.2 μm in diameter. SEM, 1800× Fig. 5 Stereo pair of scanning electron microscope fractographs of the surface of a tensile-test fracture obtained at room temperature. The alloy was a low...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
... of ice and 10% brine. It appears that fracture was by a shear process. See also Fig. 565 . SEM, 300× Fig. 565 Higher-magnification view of the area within the rectangle in the Fig. 564 , showing more clearly the shear deformation and some isolated dimples. There appear to be small regions...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000620
EISBN: 978-1-62708-181-8
... occurred. See also Fig. 926 . SEM, 18× Fig. 926 A portion of the same fracture area as that in Fig. 925 (area at arrow “c” in Fig. 922 ), as seen at higher magnification. This view shows a complicated array of facets separated in many instances by indications of isolated dimples. The degree...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
... deduced from an inspection of the fracture surface, but certain approximations can be made. If the dimples are equiaxed, the fracture probably resulted from simple tension and the stress axis probably was normal to the approximate plane of the fracture. If the dimples are elongated, the fracture...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
.... If the dimples are equiaxed, the fracture probably resulted from simple tension and the stress axis probably was normal to the approximate plane of the fracture. If the dimples are elongated, the fracture was produced either by shear or by tearing. In a shear fracture, the magnitude of applied stress can...