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thermomechanical fatigue strength

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003546
EISBN: 978-1-62708-180-1
... Abstract Thermomechanical fatigue (TMF) refers to the process of fatigue damage under simultaneous changes in temperature and mechanical strain. This article reviews the process of TMF with a practical example of life assessment. It describes TMF damages caused due to two possible types...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
... Abstract Thermomechanical fatigue (TMF) is the general term given to the material damage accumulation process that occurs with simultaneous changes in temperature and mechanical loading. TMF may couple cyclic inelastic deformation accumulation, temperature-assisted diffusion within the material...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002396
EISBN: 978-1-62708-193-1
... strengthening Thermomechanical processing Selective service processing Fatigue resistance is evaluated in terms of: Cyclic stability Resistance to crack initiation and propagation Notch sensitivity General Trends in Cyclic Behavior In this section, the spectrum of properties...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005994
EISBN: 978-1-62708-168-9
... to increase fatigue strength, lower C for better yield ration. Tensile strength: 882 kg/mm 2 Rod steel → hot forging and direct cooling → machining Wheel hubs, connecting rods, etc. High-strength and toughness (alloy steel) Low C martensite for high strength and toughness Rod steel → hot forging...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002415
EISBN: 978-1-62708-193-1
... strength requirements ( Ref 1 , 2 ). Fatigue failure mechanisms, S-N relations and characterization, and statistical life prediction models of composite laminates are described in this article. Data on aramid-aluminum (ARALL) and titanium matrix composites are also included. More detailed coverage...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004003
EISBN: 978-1-62708-185-6
..., this directionality can be utilized to enhance final service performance as well. Fine-Grain Processing Thermomechanical processing methods to produce fine-grain alpha-beta titanium billet and disks have been developed to obtain increased tensile strength and fatigue resistance. Refinement of primary alpha...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006270
EISBN: 978-1-62708-169-6
... as follows: Alpha and near-alpha titanium alloys: Can be stress relieved and annealed, but high strength cannot be developed in these alloys by aging after a solution treatment and quench. However, creep, fatigue strength, and damage tolerance can be influenced by heat treatment. Alpha-beta...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002391
EISBN: 978-1-62708-193-1
... Abstract Structural alloys are commonly subjected to a variety of thermal and thermomechanical loads. This article provides an overview of the experimental methods in thermal fatigue (TF) and thermomechanical fatigue (TMF) and presents experimental results on the structural materials that have...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006606
EISBN: 978-1-62708-210-5
... Abstract Alloy 2099 is a third-generation Al-Cu-Li alloy providing an improved combination of strength, elastic modulus, and fatigue crack growth resistance. This datasheet provides information on its key alloy metallurgy and the effects of processing on its mechanical properties...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002409
EISBN: 978-1-62708-193-1
... in the article include alpha-beta alloys, Ti-6AI-4V; alpha alloys, Ti-8Al -1Mo-IV, Ti-5AI-2.5Sn, Ti-6242S; and beta alloys, solute-lean beta alloys and solute-rich beta alloys. alpha alloys alpha-beta alloys beta alloys fatigue fracture modes fatigue life fracture toughness mechanical strength...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006095
EISBN: 978-1-62708-175-7
... Abstract This article focuses on mechanical testing characterization of blended elemental powder metallurgy (PM) titanium alloys and prealloyed PM titanium alloys. It examines the tensile properties, fracture toughness, stress-corrosion threshold resistance, fatigue strength, crack propagation...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006549
EISBN: 978-1-62708-210-5
... to determine the fatigue strength for a given number of cycles ( S - N curves). Historically, early work at Alcoa on large numbers of smooth and notched specimens demonstrated that wide variations in commercial aluminum alloys caused little or no detectable difference in fatigue strengths ( Ref 1 , 2...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001032
EISBN: 978-1-62708-161-0
... of microalloying technology to forging steels has lagged behind that of flat-rolled products because of the different property requirements and thermomechanical processing of forging steels. Forging steels are commonly used in applications in which high strength, fatigue resistance, and wear resistance...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002406
EISBN: 978-1-62708-193-1
... Abstract This article provides an overview of fatigue and fracture resistance of aluminum alloys. It discusses the characteristics of aluminum alloy classes and the fracture mechanics of aluminum alloys. The article tabulates relative stress-corrosion cracking ratings for high-strength wrought...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005674
EISBN: 978-1-62708-198-6
...-4V depends on thermomechanical processing, as noted. The prior-β grain size, the ratio of primary α to transformed β, the α grain size, and the α-β morphologies all impact performance, particularly high-cycle fatigue. Rotating bending fatigue strength also is reduced by 40% with notched samples...
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
... and associated failures of alloys used in high-temperature applications. The complex effects of creep-fatigue interaction are also discussed, although more detail on this is described in the article “Thermomechanical Fatigue: Mechanisms and Practical Life Analysis” in this Volume. Life assessment is also...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003399
EISBN: 978-1-62708-195-5
... of unidirectional fiber reinforced metal matrix composites (MMCs). It discusses the elastic deformation and elastic-plastic deformation analysis of discontinuously reinforced MMCs. The article provides an overview of analysis of strength, fatigue, and fracture toughness for macromechanics fiber-reinforced...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006317
EISBN: 978-1-62708-179-5
... microstructures with nodularity. It describes the tensile properties, hardness and compressive properties, and impact properties of CGI. The article concludes with a discussion on the fatigue strength and thermal conductivity of CGI. compacted graphite iron compressive properties fatigue strength...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001081
EISBN: 978-1-62708-162-7
... additions but also on thermomechanical processing. By varying thermal or mechanical processing, or both, a broad range of properties can be produced in titanium alloys. The elevated-temperature strength and creep resistance of titanium-base materials (along with the pickup of interstitial impurities due...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003314
EISBN: 978-1-62708-176-4
... interaction, and thermomechanical fatigue. The effects of various variables on fatigue resistance and guidelines for fatigue testing are also presented. crack initiation specimen design specimen preparation crack initiation testing apparatus axial fatigue testing machines bending fatigue machines...