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Published: 01 November 2012
Fig. 33 Elevated-temperature fatigue curves with high- and low-stress dwells. Source: Ref 3 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240243
EISBN: 978-1-62708-251-8
.... It describes the most effective methods of improving fatigue life. The chapter also explains the effect of geometrical stress concentrations on fatigue. In addition, it explores the environmental effects of corrosion fatigue, low-temperature fatigue, high-temperature fatigue, and thermal fatigue. Finally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860237
EISBN: 978-1-62708-348-5
... of cryogenic temperatures on the mechanical properties of metals and alloys are reviewed in this chapter; the effects on polymers and glasses are discussed briefly. The fundamental mechanisms controlling temperature-dependent mechanical behavior, phenomena encountered in low-temperature testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270067
EISBN: 978-1-62708-301-0
... measurements. fatigue fracture fractography microstructural analysis turbine blades Summary A low-pressure turbine rotor blade failed in service, causing extensive damage to the engine. The blade failed by stress rupture followed by fatigue due to high operating temperature. Background...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770171
EISBN: 978-1-62708-337-9
... Under pure rolling-contact fatigue conditions, that is, those comparable to the contact at the pitch line of a gear tooth, it was found that the fatigue limit of reheat-quenched and tempered test rollers increases as the tempering temperature increases, up to 250 °C. However, in a low-cycle high-load...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490111
EISBN: 978-1-62708-340-9
..., and frequency) and factors such as temperature, material defects, component geometry, and processing history. It provides a detailed overview of the damage mechanisms associated with high-cycle and low-cycle fatigue as well as thermal fatigue, creep-fatigue, and fatigue-crack growth. It also demonstrates...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
... prediction and related design methods and some of the factors involved in high-temperature fatigue, including creep-fatigue interaction and thermomechanical damage. constant-load creep curves creep deformation creep-fatigue interaction elevated-temperature fracture high-temperature fatigue stress...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
.... Cracking of the tube ends is a characteristic feature of thermal fatigue. Thermal fatigue damage typically exhibits numerous cracks and crazing. Damage due to thermal fatigue can be of the low-cycle or high-cycle type ( Ref 6.1 ). Drastic change in temperature causing thermal shock or a large...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060173
EISBN: 978-1-62708-343-0
... model damage mechanics high-temperature creep-fatigue analysis strain-range partitioning thermomechanical fatigue void growth A REVIEW is presented of selected methods now in use, or contemplated for use, for high-temperature creep-fatigue analysis. Among the methods discussed are the 10% rule...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270138
EISBN: 978-1-62708-301-0
... on their observations and the results of SEM imaging described in the chapter, investigators concluded that the blade failed by low-cycle fatigue, acting on a preexisting crack. fractography high pressure turbine blades low-cycle fatigue SEM fractography visual examination Summary A nimonic alloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860269
EISBN: 978-1-62708-348-5
... is a hazardous material. Today, liquid-helium testing is more common. The factors involved in apparatus design for fatigue and fracture testing at extreme temperatures down to 4 K are discussed by Fowlkes and Tobler (1976) . To reduce the costs of long-term fatigue tests, a fatigue cryostat should have low...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060231
EISBN: 978-1-62708-343-0
... engines aerospace structural components commercial aircraft high-cycle fatigue low-cycle thermal fatigue Space Shuttle THE MATERIAL BEHAVIOR and life prediction models discussed in earlier chapters have evolved over the years specifically for assessing structural integrity, durability...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490265
EISBN: 978-1-62708-340-9
..., particularly near the last stages, problems relating to low-temperature corrosion phenomena, such as corrosion fatigue and stress corrosion, are of great concern; these problems, however, are beyond the scope of this book and will not be treated here. It can also be seen from Table 6.1 that a number...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610209
EISBN: 978-1-62708-303-4
... in section. However, the significant effect of notches, even those with low stress-concentration factors, on the fatigue behavior of this steel is apparent. Fig. 15 Room-temperature S - N curves for a 300M steel with an ultimate tensile strength of 2000 MPa (290 ksi) having various notch severities...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860371
EISBN: 978-1-62708-348-5
... for Cryogenic Service , 1974 ; Low Temperature and Cryogenic Steels , 1966 ). In this section, the general trends in strength, toughness, and fatigue resistance are summarized as a function of temperature. Use the data presented here and the data in the handbooks with care because there may be significant...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... not as serious (or as sudden) as fracture, because wear is usually anticipated. Failures can also be induced by service temperatures. Examples include creep deformation and rupture at elevated temperature, or the brittle fracture of body-centered cubic (bcc) metals at low temperatures. Cyclic stress (fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870267
EISBN: 978-1-62708-344-7
... regardless of sign tend to reduce, or even annihilate, the residual stresses. Likewise, high temperature may anneal away the stresses associated with the residual strains. It is here, especially, where a distinction must be made between high-cycle and low-cycle fatigue. Thus, in order to exploit...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490415
EISBN: 978-1-62708-340-9
... strength of the material. Unlike creep, fatigue is not strongly influenced by temperature. Thus, fatigue can occur in both hot- and cold-section components. Fatigue failures are generally categorized as occurring by either high-cycle or low-cycle mechanisms, depending on the frequency of the loading...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730023
EISBN: 978-1-62708-283-9
... increases with increasing stress and temperature. Fig. 3.8 Increased stress and increased temperature cause faster creep Fatigue Failures may occur under repeated applications of stress at a level which would not cause failure if the stress were applied only once. This phenomenon is called...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120095
EISBN: 978-1-62708-269-3
... strength (TYS) and ultimate tensile strength (UTS) Ductility Toughness Cyclic properties, including low-cycle fatigue (LCF) and high-cycle fatigue (HCF) Crack propagation in fatigue ( da / dN ) or under environmental constraints ( da / dt ) The mechanical properties of titanium alloys...