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Strain aging

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Published: 01 August 2005
Fig. 2.9 Stress-strain curves for low-carbon steel showing strain aging. Region A , original material strained through yield point. Region B , immediately retested after reaching point X . Region C , reappearance and increase in yield point after aging at 150 °C (300 °F). Source: Ref 2.2 More
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Published: 01 January 2015
Fig. 11.12 Strain-aging effects on the yielding behavior of a low-carbon steel deformed to 4% true plastic strain and aged for various times at 60 °C (140 °F). Source: Ref 11.6 More
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Published: 01 December 2004
Fig. 27 Illustration of strain aging during an interrupted tensile test. (a) Specimen reloaded in a short period of time. (b) Time between loading and unloading is sufficient More
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Published: 01 December 2004
Fig. 28 Dynamic strain aging or serrated yielding in an aluminum alloy tested at room temperature More
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Published: 01 March 2002
Fig. 9.3 Postweld strain-age cracking in nickel-base superalloy X-750. Alloy was welded in the age-hardened condition and re-aged at 705 °C (1300 °F) More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240041
EISBN: 978-1-62708-251-8
... heating. It describes the intermediate phases that are formed during solidification between the two extremes of substitutional solid solution on the one hand and intermetallic compound on the other. The chapter concludes with a section on strain aging in low-carbon steels that allows the interstitial...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560039
EISBN: 978-1-62708-291-4
..., the benefits of high-temperature heat treatments, and the effects of quench and strain aging. annealing ferrite low-carbon steels quench aging steel sheets steel strips strain aging Steels containing less than about 0.1% C and no significant alloying elements can conveniently be treated...
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Published: 01 January 2015
Fig. 3.15 Notched stress-rupture properties under sustained loading. The Ti-8Mn sheet alloy is susceptible to the strain-aging type of hydrogen embrittlement. Notched tensile specimens were loaded to stresses below normal failure stress. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080379
EISBN: 978-1-62708-304-1
... boundaries. This is often referred to as “stress-relaxation cracking,” “reheat cracking,” or “strain-age cracking” in the literature. Typically, a highly constrained component, such as a heavy wall construction, or a welded component, or a cold-worked structure, can be susceptible to this type...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410213
EISBN: 978-1-62708-265-5
... This chapter discusses the stress-strain response of ferritic microstructures and its influence on tensile deformation, strain hardening, and ductile fracture of carbon steels. It describes the ductile-to-brittle transition that occurs in bcc ferrite, the effects of aging and grain size...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410405
EISBN: 978-1-62708-265-5
...., a decrease in flow stress with increasing strain rate, provides evidence for dynamic strain aging or carbon atom segregation to dislocations during testing. Dynamic strain aging is discussed in more detail in the next section of this chapter. Leslie and Sober recognized that rearrangement of carbon atoms...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060115
EISBN: 978-1-62708-355-3
... a knowledge of the factors that influence the test results. This chapter provides a metallurgical perspective for such interpretation. The topics covered include elastic behavior, anelasticity, damping, proportional limit, yield point, ultimate strength, toughness, ductility, strain hardening, and yielding...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080001
EISBN: 978-1-62708-304-1
... cause the alloy to suffer brittle, intergranular cracking when exposed to the lower end of the intermediate temperatures for certain alloys. This type of cracking is frequently referred to as “reheat cracking,” “stress-relaxation cracking,” or “strain-age cracking” (for nickel-base alloys). Both...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870265
EISBN: 978-1-62708-299-0
... and Partially Annealed This pertains to products that are strain-hardened more than the desired final amount and then reduced in strength to the desired level by partial annealing. For alloys that age soften at room temperature, each H2 x temper has the same minimum ultimate tensile strength as the H3 x...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.9781627083553
EISBN: 978-1-62708-355-3
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240349
EISBN: 978-1-62708-251-8
... that will be used for severe forming or deep drawing. These steels exhibit a minimum of strain aging and have a fine grain size. 19.4.6 Continuous Casting Today, most steel is cast into solid form in a continuous casting or strand casting machine. In the continuous casting process ( Fig. 19.7 ), the ladle...
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Published: 01 December 2008
Fig. 8.14 The strain energy according to the precipitation of particles. (a) Electron microscope image of the structure of Al-5.5at.%Ag alloy thin film after aged at 433 K ( Ref 12 ). Globular particles dispersed in the matrix indicate Guinier-Preston zone. Thick straight lines mean sections More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780295
EISBN: 978-1-62708-281-5
... affects the long-term behavior of plastics. Aging time is the main parameter that affects small-strain properties. In the aging range, all polymers age the same. The small-strain behavior of PS, for example, is similar to that of polycarbonate (PC) and other glassy structures. Aging is a general...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780199
EISBN: 978-1-62708-281-5
...Abstract Abstract This article describes the general aspects of and practical problems of failure analysis of creep, stress relaxation, and yielding for homogeneous polymers. The effect of temperature and strain rate on the relationship between yield point and elastic modulus and the aging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400073
EISBN: 978-1-62708-316-4
... of the method of casting or manufacture, killed steels are preferred because they have better formability and are not subject to aging or strain aging (that is, mechanical properties do not change with time). Classification of sheet steels can be based on various descriptors, such as: Chemical...