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thermomechanical fatigue

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060111
EISBN: 978-1-62708-343-0
... elastic and inelastic strain into a total strain range. The discussion covers important features, procedures, and correlations as well as the use of models and the steps involved in predicting thermomechanical fatigue (TMF) life. It also includes information on isothermal fatigue, bithermal creep-fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060173
EISBN: 978-1-62708-343-0
...Material constants used in oxidation-creep-thermomechanical fatigue model Table 8.1 Material constants used in oxidation-creep-thermomechanical fatigue model Material constants used in oxidation damage term a ′ 0.75 β 1.5 B 6.93 × 10 −3 s −0.5 δ 0 2.16 × 10 −10 μm...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
... Fig. 36 (a) Mechanical strain/temperature variation in out-of-phase thermomechanical (TMF OP), in-phase thermomechanical (TMF IP), and isothermal fatigue (IF). (b) Out-of-phase thermomechanical stress-strain response. (c) In-phase thermomechanical stress-strain response. Source: Ref 19 Fig...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490415
EISBN: 978-1-62708-340-9
... (t is time of thermal exposure) for superalloys (based on Ref 7 , 8 , 64 , and 69 ). Fig. 9.32. Effect of coating on fatigue life of IN 738 tested in thermomechanical fatigue using linear, out-of-phase cycles with peak temperature of 870 °C (1600 °F) and no hold time ( Ref 25...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060223
EISBN: 978-1-62708-343-0
... References References 9.1 Richards C.W. , Engineering Materials Science , Wadsworth Publishing , San Francisco , 1961 , p 27 , 468 9.2 Halford G.R. Lerch B.A. Saltsman J.F. and Arya V.K, , “Proposed Framework for Thermomechanical Fatigue (TMF) Life Prediction...
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 Morrow J. , Characterization of Thermomechanical Fatigue , in Thermal and Environmental Effects in Fatigue: Research-Design Interface , Jaske C.E. et al , Ed., American Society of Mechanical Engineers , 1983 163. Lindley T.C. , Richards C.E. , and Ritchie R.O...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870375
EISBN: 978-1-62708-344-7
.... , A Statistical Distribution of Wide Applicability , J. Appl. Mech. , Vol 18 , 1951 , p 293 – 297 10.1115/1.4010337 A.55 Halford G.R. Lerch B.A. and McGaw M.A. , Fatigue, Creep-Fatigue, and Thermomechanical Fatigue Life Testing , Mechanical Testing and Evaluation , Vol 8 , ASM...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000001
EISBN: 978-1-62708-313-3
... ). By the 1970s, it was becoming evident that while superalloys with protective coatings had sufficient strength and creep resistance and adequate environmental resistance, the general failure mode had shifted to thermomechanical fatigue (TMF). This prompted a new generation of alloys that were optimized...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540121
EISBN: 978-1-62708-309-6
...Abstract Abstract This chapter examines the stress-strain characteristics of metals and alloys subjected to cyclic loading and the cumulative effects of fatigue. It begins by explaining how a single load reversal can lower the yield stress of a material and how repeated reversals can cause...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240563
EISBN: 978-1-62708-251-8
... sufficient to provide adequate resistance to thermomechanical fatigue Compatibility with the base alloy Low rate of interdiffusion with the base alloy Ease of application and low cost relative to improvement in component life Ability to be stripped and reapplied without significant reduction...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240527
EISBN: 978-1-62708-251-8
.... Yield strengths vary from 480 MPa (70 ksi) for some grades of commercial titanium to approximately 1100 MPa (160 ksi) for structural alloys. In addition to their static strength advantage, titanium alloys have much better fatigue strength than the other lightweight alloys, such as those of aluminum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.9781627083409
EISBN: 978-1-62708-340-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980417
EISBN: 978-1-62708-342-3
..., the associated high thermomechanical stressing can be considered as continuous loading, and with slow extrusion cycles, as interrupted creep loading, as discussed in more detail in section “ Hot Working Materials for the Manufacture of Extrusion Tooling ” in this chapter. The highest thermomechanical stressing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120033
EISBN: 978-1-62708-269-3
... designed to be predominantly β forged. (f) ELI, extra-low interstitial. (g) Ti-17 has been classified as an α-β and as a near-β titanium alloy. For purposes of this table, it is classified as an α-β alloy. Thermomechanical schedules for producing various property combinations in an alpha-beta...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870123
EISBN: 978-1-62708-344-7
... Pattern to Microstructural Fracture in Creep Fatigue,” NASA TM-83473 , 1983 6.29 Bill R.C. Verrilli M.J. McGaw M.A. and Halford G.R. , “A Preliminary Study of the Thermomechanical Fatigue of Polycrystalline MAR M-200,” NASA TP-2280 (AVSCOM TR 83-C-6) , Feb 1984...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480113
EISBN: 978-1-62708-318-8
..., and ductility as well as creep, fatigue strength, and fatigue crack growth rate. It also discusses the influence of other titanium phases and the properties of titanium-based intermetallic compounds, metal-matrix composites, and shape-memory alloys. alloy composition alpha titanium alloys alpha-beta...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120095
EISBN: 978-1-62708-269-3
... cycles) fatigue strength to density of several titanium alloys compared with some steels once used in the compressor sections of gas turbines Fig. 12.27 Curves depicting stress versus cycles to failure for coarse-grained Ti-8Al alpha alloy with and without thermomechanical processing to produce...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870267
EISBN: 978-1-62708-344-7
... a great potential for enhancing intermediate and high-temperature fatigue resistance; this should be especially useful for applications such as turbo jet engine components. The potential of thermomechanical processing as a means of improving fatigue resistance is being tapped, and further research...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780343
EISBN: 978-1-62708-281-5
... 25. Gray A.P. , Some Applications of the Model TMS-1 Precision Thermomechanical Analyzer , Instrum. News , Vol 20 ( No. 1 ), 1974 26. Winding C.C. and Hiatt G.D. , Polymeric Materials , McGraw-Hill , 1961 27. “ Resinkit ,” Society of Plastics Engineers , 1981...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170337
EISBN: 978-1-62708-297-6
... optimization of mechanical properties, control of the microstructure must be maintained, particularly for tensile, fatigue, and creep performance. Microstructural features, such as primary α-2 grain size and volume fraction and secondary α-2 plate morphology and thickness, are varied by thermomechanical...