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Published: 31 December 2017
Fig. 47 Crater formation during laser-dimpling process with physical phenomena. Source: Ref 199 More
Book Chapter

Series: ASM Handbook
Volume: 12A
Publisher: ASM International
Published: 30 June 2025
DOI: 10.31399/asm.hb.v12a.a0007064
EISBN: 978-1-62708-500-7
... Abstract This article presents fractographs of overload fractures in a ductile cast iron piston, tensile test bar, differential case, brake caliper, compressor crankshaft, and pivot arm. SEM images show such features as dimpled rupture at the thin metallic matrix ligatures between the graphite...
Image
Published: 01 January 1987
Fig. 2 Examples of the dimple rupture mode of fracture. (a) Large and small dimples on the fracture surface of a martempered type 234 tool steel saw disk. The extremely small dimples at top left are nucieated by numerous, closely spaced particles. (D.-W. Huang, Fuxin Mining Institute, and C.R More
Image
Published: 31 August 2017
Fig. 5 Examples of the dimple rupture mode of fracture. (a) Large and small dimples on the fracture surface of a martensitic type 234 tool steel saw disk. The extremely small dimples at top left are nucleated by numerous closely spaced particles. (b) Large and small sulfide inclusions in steel More
Book Chapter

Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000617
EISBN: 978-1-62708-181-8
... 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, 0.25% Cu...
Book Chapter

Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000623
EISBN: 978-1-62708-181-8
... fracture, crack propagation, ductile overload fracture, dimpled rupture, microvoid coalescence, and quasi-cleavage fracture of these alloys. cleavage fracture ductile fracture fatigue crack growth fatigue fracture fractograph stress-corrosion cracking tensile fracture threaded fasteners...
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
... 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...
Book Chapter

By S. Lampman
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
... Abstract This article briefly reviews the various metallurgical or environmental factors that cause a weakening of the grain boundaries and, in turn, influence the occurrence of intergranular (IG) fractures. It discusses the mechanisms of IG fractures, including the dimpled IG fracture, the IG...
Book Chapter

By C. Quinton Bowles
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
... 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: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006421
EISBN: 978-1-62708-192-4
... design approaches such as laser patterning and dimpling. Laser-surface modification of novel materials, such as high-entropy alloys and metallic glasses, is explored. The article provides an overview of hybrid techniques involving laser as a secondary tool, as well as a discussion on the improved...
Book Chapter

By Diego O. Fernandino, Roberto E. Boeri
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
... of the main fracture modes and their characteristic fractographic features. It discusses the four principal fracture modes: dimple rupture (or fracture), cleavage, fatigue, and intergranular fracture. The article provides information on special cases of environmentally assisted fracture. It concludes...
Book Chapter

By E.R. Weishaupt
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
... to become the preferred path of crack growth. The article describes in more detail some typical mechanisms that cause IG fracture. It discusses the causes and effects of IG brittle cracking, dimpled IG fracture, IG fatigue, hydrogen embrittlement, and IG stress-corrosion cracking. The article presents...
Book Chapter

By Toby Padfield
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
... Abstract This article compares and contrasts mechanical joining techniques used in the manufacture of aluminum assemblies, including seaming, swaging, flanging, crimping, clinching, dimpling, interference and snap fits, and interlocking joints. It provides basic illustrations of the various...
Book Chapter

By Eric Weishaupt
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0007031
EISBN: 978-1-62708-387-4
... Abstract This article focuses on the following common fracture mechanisms observed in copper alloys: dimple overload, corrosion-related fractures such as corrosion fatigue and stress-corrosion cracking, and intergranular fracture. The effects of loading conditions and temperature on copper...
Book Chapter

Series: ASM Handbook
Volume: 12A
Publisher: ASM International
Published: 30 June 2025
DOI: 10.31399/asm.hb.v12a.a0007063
EISBN: 978-1-62708-500-7
... Abstract This article presents fractographs that show evidence of overload and fatigue in gray cast irons. The overload failure section illustrates a fractured motor housing, valve body, and bracket with microvoid coalescence (dimpled rupture) in the metal matrix between graphite flakes...
Book Chapter

Series: ASM Handbook
Volume: 12A
Publisher: ASM International
Published: 30 June 2025
DOI: 10.31399/asm.hb.v12a.a0007066
EISBN: 978-1-62708-500-7
... Abstract This article presents fractographs that show evidence of overload in a ferritic malleable cast iron. The images illustrate crack initiation and propagation, as well as regions of dimpled rupture. crack initiation crack propagation dimpled rupture ferritic malleable cast iron...
Image
Published: 01 January 1987
Fig. 1 Influence of direction of maximum stress (σ max ) on the shapes of dimples formed by microvoid coalescence. (a) In tension, equiaxed dimples are formed on both fracture surfaces. (b) In shear, elongated dimples point in opposite directions on matching fracture surfaces. (c) In tensile More
Image
Published: 01 January 1987
Fig. 3 Intergranular dimple rupture in a steel specimen resulting from microvoid coalescence at grain boundaries. More
Image
Published: 01 January 1987
Fig. 4 Different types of dimples formed during microvoid coalescence. (a) Conical equiaxed dimples in a spring steel specimen. (b) Shallow dimples in a maraging steel specimen More
Image
Published: 01 January 1987
Fig. 6 Formation of elongated dimples under tear and shear loading conditions. (a) Tear fracture. (b) Shear fracture More