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Image
Published: 01 January 2002
Fig. 2 Fracturing of high-strength screws ( example 1 ). (a) Two grade 8 high-strength steel fasteners that failed on installation. (b) Necking and stretching between adjacent thread crests are evident on a cross section. Unetched. 8.9× More
Image
Published: 01 December 2008
Fig. 22 Influence of loading rate on the energy absorbed in fracturing an annealed ductile iron containing 2.95% Si. Testpieces were standard Charpy type with a 0.25 mm (0.010 in.) notch but were also precracked 0.76 mm (0.030 in.) by fatigue. Black circles are shear fracture; open circles More
Image
Published: 15 January 2021
Fig. 2 Fracturing of high-strength screws (Example 1). (a) Two grade 8 high-strength steel fasteners that failed on installation. (b) Necking and stretching between adjacent thread crests are evident on a cross section. Unetched. Original magnification: 8.9× More
Image
Published: 31 August 2017
Fig. 26 Influence of loading rate on the energy absorbed in fracturing an annealed ductile iron containing 2.95% Si. Testpieces were standard Charpy type with a 0.25 mm (0.010 in.) notch but were also precracked 0.76 mm (0.030 in.) by fatigue. Black circles are shear fracture; open circles More
Image
Published: 01 January 2006
Fig. 20 Mechanical fracturing of the sulfide scale on the metal surface under low total acid number and high-velocity naphthenic acid corrosion conditions. Note cracks in dark iron sulfide film. More
Book Chapter

Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003305
EISBN: 978-1-62708-176-4
... Abstract The fracture-mechanics technology has significantly improved the ability to design safe and reliable structures and identify and quantify the primary parameters that affect structural integrity of materials. This article provides a discussion on fracture toughness of notched materials...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001833
EISBN: 978-1-62708-181-8
... Abstract This article discusses the preparation of photomacrographs of fracture surfaces. It provides useful information on the equipment used, such as view cameras, 35-mm single-lens-reflex cameras, and stereomicroscopes. The article describes the role of lenses, focusing, camera magnification...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... Abstract This article provides an overview of fractography and explains how it is used in failure analysis. It reviews the basic types of fracture processes, namely, ductile, brittle, fatigue, and creep, principally in terms of fracture appearances, such as microstructure. The article also...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... Abstract Engineering component and structure failures manifest through many mechanisms but are most often associated with fracture in one or more forms. This article introduces the subject of fractography and aspects of how it is used in failure analysis. The basic types of fracture processes...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006946
EISBN: 978-1-62708-387-4
... Abstract This article describes the general factors that can influence fracture appearances. The focus is on the general practical relationships of fracture appearances, with factors presented in some broad categories, including: material conditions (e.g., crystal structure and microstructure...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006846
EISBN: 978-1-62708-387-4
... examination of fractured parts: the stereomicroscope and the single-light-path digital microscope. The common features present on fracture surfaces are each considered separately, both in their significance and as photographic challenges. The article also presents a short note on low-magnification scanning...
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

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... Abstract This article reviews the mechanical behavior and fracture characteristics that discriminate structural polymers from metals. It provides information on deformation, fracture, and crack propagation as well as the fractography involving the examination and interpretation of fracture...
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...
Book

By ASM Handbook Committee
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.9781627081931
EISBN: 978-1-62708-193-1
Book Chapter

By A.R. Shah, D.B. Edwards
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006865
EISBN: 978-1-62708-395-9
... Abstract This article reviews the mechanical behavior and fracture characteristics that discriminate structural polymers from metals, including plastic deformation. It provides overviews of crack propagation and fractography. The article presents the distinction between ductile and brittle...
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
... Abstract As cast iron parts are extensively applied, fracture events will eventually take place. Consequently, it becomes essential to carry out failure analyses to identify the cause of fracture and to provide corrective actions that allow safe operation. This article presents a description...
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
... Abstract This article briefly reviews the factors that influence the occurrence of intergranular (IG) fractures. Because the appearance of IG fractures is often very similar, the principal focus is placed on the various metallurgical or environmental factors that cause grain boundaries...
Book Chapter

By Brett Miller, Phillip Swartzentruber
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006874
EISBN: 978-1-62708-387-4
... Abstract Identification of the fracture mechanism is one of the principal responsibilities of a failure analyst and is an important component of any root-cause analysis. This article explores the varied mechanisms responsible for metal fracture, particularly regarding fractography. The behavior...