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Isothermal constitutive modeling

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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
... Abstract This article provides a description of the microscale models and mechanisms for deformation and fracture. Macroscale and microscale appearances of ductile and brittle fracture are discussed for various specimen geometries and loading conditions. The article reviews the general...
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
... Abstract This article focuses on characterizing the fracture-surface appearance at the microscale and contains some discussion on both crack nucleation and propagation mechanisms that cause the fracture appearance. It begins with a discussion on microscale models and mechanisms for deformation...
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
... resistance. Total strain at temperature is given by the sum of elastic stress-strain modulus, thermal expansion strain, and creep strain. Change in elastic modulus with temperature cannot be neglected at higher homologous temperatures. Parametric modeling of creep or stress-rupture behavior often normalizes...
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
..., elastic modulus, fatigue life, and oxidation resistance. Total strain at temperature is given by the sum of elastic stress-strain modulus, thermal expansion strain, and creep strain. Change in elastic modulus with temperature cannot be neglected at higher homologous temperatures. Parametric modeling...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... agitation causes temperature gradients within workload and part May not be uniform Rolling on surface is poor guide to agitation Must be measured or modeled Type of quenchant Brine, water, oil, polymer, gas, air Quench rate must be fast enough to achieve desired properties...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... for select alloys in continuous, isothermal oxidizing atmospheres without excessive scaling Table 1 Suggested maximum operating temperatures for select alloys in continuous, isothermal oxidizing atmospheres without excessive scaling Alloy designation Maximum temperature Ref °C °F...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
...-temperature-transformation diagrams, also called isothermal transformation diagrams, are developed by heating small samples of steel to the temperature where austenite transformation structure is completely formed, that is, the austenitizing temperature (T A ), and then rapidly cooling to a temperature...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... ). Fig. 5 Haigh fatigue diagram for unnotched and notched round bars of quenched and tempered 42CrMo4V steel (AISI 1140) For general consideration of mean stress effects, various models of the mean stress-amplitude relationship in the Haigh presentation have been proposed. Figure 6 shows...
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
..., and, in some situations, the amount of energy absorbed may also be an important factor. Furthermore, it should be noted that not all distortion necessarily constitutes a “failure.” This article first considers true distortion failures, that is, situations in which distortion occurs when it was unexpected...
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
... of failures, and consideration of the distortion can be an important part of the analysis. Energy is absorbed during deformation, and in some situations, the amount of energy absorbed may also be an important factor. Furthermore, it should be noted that not all distortion necessarily constitutes a “failure...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4