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bulk deformation

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001754
EISBN: 978-1-62708-241-9
... the investigative steps and analytic tools used to determine the root cause, highlighting the importance of continuous, thorough questioning by the investigating activity. The combined analyses demonstrated that the bearing failed by a single event overload as evidenced by bulk deformation and traces of foreign...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... Creep deformation may also result in the complete separation or fracture of a material and the breach of a boundary or structural support. Fracture may occur from either localized creep damage or more widespread bulk damage caused by the accumulation of creep strains over time. Structural components...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... of metalworking operations that can be roughly divided into bulk-working operations and sheet-forming operations ( Ref 1 ). The general distinction here is that bulk working imposes material flow in all directions, while sheet-forming operations are typically limited to two-dimensional deformation. Metalworking...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... Creep deformation can also result in the complete separation or fracture of a material and the breach of a boundary or structural support. Fracture can occur from either localized creep damage or more widespread bulk damage caused by the accumulation of creep strains over time. Structural components...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001738
EISBN: 978-1-62708-220-4
..., - growth-rate of these cracks, - maximum allowable deformation of aged Incoloy 800H, - time to maximum allowable deformation. Results of the Investigations Material Quality The results of the chemical analysis of the material from the bottom manifold (see table 1 ) showed that it meets...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001508
EISBN: 978-1-62708-236-5
... absent from the spectrum taken from the bulk material ( Figure 9 vs. Figure 10 ). Fig. 9 Energy Dispersive Spectrum of Fracture Surface (Typical) Fig. 10 Energy Dispersive Spectrum of Bulk Material (Typical) The analysis concluded the cause of failure to be stress corrosion...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... and plastic deformation. For polycrystalline materials, the bulk elastic and plastic deformation characteristics are generally the same in compression and tension. As a result, the elastic modulus, yield strength, and work-hardening curves will be the same in compression and tension tests. However...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001766
EISBN: 978-1-62708-241-9
... that the anchor rod was loaded beyond its installation limit of 6,000 ft-lbf based upon the underlying assumption that 6,000 ft-lbf was the elastic limit of the screw anchor. While in many applications, the onset of bulk plastic deformation is considered to constitute failure of a component, it is not true...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006835
EISBN: 978-1-62708-329-4
... operations and sheet-forming operations. The general distinction here is that bulk working imposes material flow in all directions, while sheet-forming operations are typically limited to two-dimensional deformation. Metalworking operations are also classified as either primary metalworking (where mill forms...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
..., plastic flow, contact fatigue, and bulk failures. Although the aim of this article is to comprehend RCF failures, wear-type failures that include surface removal and material transfer do not form a part of this background; Blau ( Ref 13 ) has given a detailed account of rolling-contact wear (RCW), and he...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001031
EISBN: 978-1-62708-214-3
.... The hot-gas wall is at the top. (a) Massive deformation forms pinholes. 42.5×. (b) Minimal grain-boundary separation. 85×. Fig. 4 Micrographs of the banded region of the MCC. (a) Cracking and grain-boundary separation, back scatter mode. 296×. (b) Dissociated intermetallics with compositions...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006850
EISBN: 978-1-62708-395-9
... for a phenolic resin–aramid fiber composite showing partial coverage of the polymer pin by transfer film. Source: Ref 28 Fig. 9 Micrographs of worn polyetheretherketone (PEEK) surfaces at various operating temperatures. These pictures highlight the changes in the surface deformation behavior...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001816
EISBN: 978-1-62708-241-9
... ( a ) and super-index m ( b ) in superplastic behavior at 800 °C Fig. 6 Hot-rolled raw state microstructure ( a ), detected ferrite grain pattern ( b ), and ASTM G grain size distribution histogram ( c ) Fig. 7 Micrograph of a specimen superplastically deformed at 800 °C at a zone close...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
... classification is based on the two-term model that divides wear mechanisms into interfacial and bulk or cohesive. The second is based on the perceived wear mechanism. The third classification is specific to polymers and draws the distinction based on mechanical properties of polymers. In this classification...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006944
EISBN: 978-1-62708-395-9
...) intermediate temperature with some ductility, (3) greater temperature (approaching glass transition temperature) with necking and cold drawing, (4) above the glass transition temperature with homogenous deformation (quasi-rubber-like behavior) Fig. 5 Variation of stress-strain curves of PMMA...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0091048
EISBN: 978-1-62708-235-8
... of the supplied sample revealed a single crack, transverse to the fillet weld axis. No bulk macroscopic plastic deformation was associated with the cracking. Relatively high heat input during welding was suggested by the extent of the oxide or heat tint discoloration. The underside of the weld joint contained...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
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
..., or brittle, polymers Fig. 4 Crazing fibrils in linear polyethylene Fig. 5 Section from a polystyrene sample that was deformed past its compressive yield. The section is viewed between crossed polarizers, showing shear bands. Fig. 6 Isometric tensile creep curves...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c9001631
EISBN: 978-1-62708-222-8
... manufacturers. Tensile test data indicated that the companion hooks were significantly different from hooks made by other manufacturers. The hooks broke into several pieces and failed with little or no plastic deformation, while hooks made by other manufacturers plastically deformed and did not break during...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006827
EISBN: 978-1-62708-329-4
... deformation with a necking feature on the fracture surface. However, the ductile crack may not present this large inelastic behavior for most solder crack cases. Figure 17 reveals the general ductile crack for BGA solder balls ( Ref 34 ). The crack passes through the bulk solder region (not through the IMC...