1-20 of 178 Search Results for

Strain hardening

Sort by
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001345
EISBN: 978-1-62708-215-0
... after swaging to reduce or eliminate strain hardening of the metal. Boiler tubes Cold working (swaging) Strain hardening Sulfur 304 grade TP Metalworking-related failures Stress-corrosion cracking Background Applications The reheater tube is part of a single drum boiler...
Image
Published: 15 January 2021
Fig. 1 Comparison of the conventional stress-strain behavior of a low-carbon steel, a strain-hardening material, and the idealized material assumed in limit analysis. All have the same yield strength. More
Image
Published: 01 January 2002
Fig. 1 Comparison of the conventional stress-strain behavior of a low-carbon steel, a strain-hardening material, and the idealized material assumed in limit analysis. All have the same yield strength. More
Image
Published: 01 January 2002
Fig. 54 Near crack-tip deformation and fracture processes. The stress singularity at the free surface of a crack is relieved by crack blunting and plastic flow or by microcracking, Shape of the plastic zone depends on the extent of strain hardening in the plastic zone. ρ, tip radius More
Image
Published: 15 January 2021
Fig. 64 Near crack-tip deformation and fracture processes. The stress singularity at the free surface of a crack is relieved by crack blunting and plastic flow or by microcracking. Shape of the plastic zone depends on the extent of strain hardening in the plastic zone. ρ, tip radius More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... that can cause specimen-scale shear banding is the combination of minimum strain hardening and negative strain rate hardening. A second case in which the central fibrous zone is (apparently) absent has been reported in an HY-100 steel. Both cases are discussed in this article. When edge- or center...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
... that can cause specimen-scale shear banding is the combination of minimum strain hardening and negative strain-rate hardening. A second case in which the central fibrous zone is (apparently) absent has been reported in an HY-100 steel. Both cases are discussed in this article. When edge- or center...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006801
EISBN: 978-1-62708-329-4
... application, sheet metals become stronger from a phenomenon known as work hardening or strain hardening. Concurrent with this increasing load, the actual cross-sectional area of the tensile dog bone decreases. The strength increase from work hardening is greater than the loss of the load-carrying...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... steel, a strain-hardening material, and an idealized material—all with the same yield strength (the upper yield point for the low-carbon steel and the stress at 0.2% offset for the strain-hardening material). Load limits for parts made of materials that strain harden significantly when stressed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
..., limit analysis is very useful to the designer, especially in the analysis of statically indeterminate structures. Figure 1 illustrates the relative stress-strain behavior of a low-carbon steel, a strain-hardening material, and an idealized material—all with the same yield strength (the upper yield...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006819
EISBN: 978-1-62708-329-4
... multiaxial cyclic loading often produces additional strain hardening, which is not usually observed under proportional loading conditions. The reason for the additional hardening is the interaction of slip planes, because many more slip planes are active during nonproportional loading due to the change...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
... that chipping occurred once every 200 hammer weeks. Another interesting observation made by Burn was that the strain hardening of the striking face that occurs during the use of a hammer increased the hardness 1.5 to 2.5 points HRC ( Ref 2 ). A fact not mentioned earlier about Burn's field tests...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0006548
EISBN: 978-1-62708-180-1
... megagram MIC microbiologically influenced corrosion MPa megapascal mph miles per hour MS mass spectroscopy MSD multiple-site damage MSDS materials safety data sheet MVC microvoid coalescence n strain-hardening exponent n curve-fitting parameter n cyclic strain hardening exponent nm nanometer N fatigue...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003513
EISBN: 978-1-62708-180-1
... bound ( Ref 9 ). Option 2 FAC Option 2 FAC is recommended for materials with a high initial work-hardening rate, (e.g., strain-aging mild steels), or for materials with a discontinuous yield point, or when the complete material true stress-strain curve is known. The Option 2 FAC was developed...
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
... hardening exponents ( n ) for most structural alloys are typically in the range of 0.05 to 0.2, which translates to a RA in the range of 5 to 22% before necking instability is attained. Thus, few materials that are not cold worked would neck before 2% strain and would be considered brittle in this criterion...
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
... ]. However, under some circumstances, these materials may present an important disadvantage as they exhibit unstable plasticity upon yielding, severely restricting their potential uses [ 11 ]. In order to avoid this instability [ 12 ], the mechanical behavior of the steel must show a strain hardening...
Image
Published: 30 August 2021
Fig. 21 Illustration of (a) isotropic hardening, (b) kinematic hardening, (c) mixed hardening, and (d) resulting stress-strain curves under reverse yielding. Adapted from Ref 71 More
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
... compressive hydrostatic component relative to the deviatoric component of stress and decreases with an increase in the tensile-hydrostatic stress component. It is also possible for ductile fracture to require little energy for initiation or propagation if strain-hardening capacity is low. From...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006919
EISBN: 978-1-62708-395-9
... a substantial effect on observed puncture resistance in ductile plastics. Of special significance is the fact that for many plastics, substantial strain hardening occurs only at very large values of true strain. Proper measurement of stresses and strains is very difficult at such large deformation levels...