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thermomechanical fatigue

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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...
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: 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: 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...
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Published: 15 January 2021
Fig. 8 Example bithermal fatigue thermomechanical fatigue waveforms. (a) Bithermal fatigue waveform employed during laboratory testing. Image (a) adapted from Ref 6 , with permission from Elsevier. (b) Coupled high-cycle fatigue and bithermal fatigue waveform More
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Published: 01 January 2002
Fig. 1 In-phase and out-of-phase thermomechanical fatigue cycles. The term “phase” refers to the nature of the relationship between the mechanical strain and the temperature. More
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Published: 01 January 1996
Fig. 31 Thermomechanical fatigue OP life prediction for steels under ε ˙ th / ε ˙ mech = − 1 / 2 and ε ˙ th / ε ˙ mech = − 2 conditions. Source: Ref 68 , 69 More
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Published: 01 January 1996
Fig. 32 Thermomechanical fatigue (out-of-phase) stress strain of 1070 steel. (a) Experimental. (b) Prediction using nonunified equations. Source: Ref 81 More
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Published: 01 January 1996
Fig. 33 Thermomechanical fatigue (out-of-phase) stress strain of 1070 steel. (a) Experimental. (b) Prediction using Bodner's model. Source: Ref 81 More
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Published: 01 January 2000
Fig. 31 Basic thermomechanical fatigue strain cycles More
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Published: 01 January 2000
Fig. 32 Comparison of isothermal and thermomechanical fatigue resistance of A 286 precipitation-hardening stainless steel. Source: Ref 76 , 77 , 78 More
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Published: 01 January 2000
Fig. 33 Comparison of isothermal and thermomechanical fatigue resistance of AISI 1010 carbon steel. Source: Ref 76 , 77 , 79 More
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Published: 01 January 2001
Fig. 23 Thermomechanical fatigue life for SCS-6/Ti-21S composites, normalized for maximum applied stress basis. Source: Ref 120 More
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Published: 31 August 2017
Fig. 19 Results of constrained thermomechanical fatigue testing from 50 to 420 °C (120 to 790 °F). CGI, compacted graphite iron. Black (no cracks), light gray (crack initiation), dark gray (failure). Source: Ref 28 More
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Published: 15 January 2021
Fig. 56 Example of a thermomechanical fatigue (TMF) test rig. (a) MTS servohydraulic testing machine (100 kN) equipped for TMF testing. (b) Induction-heated round specimen More
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Published: 15 January 2021
Fig. 57 Examples of thermomechanical fatigue cracks in structures. (a) Piston of a diesel engine. (b) Heat exchanger. (c) Cooling channel More
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Published: 15 January 2021
Fig. 4 Cross section of a nickel-base superalloy after thermomechanical fatigue testing. Image shows surface oxidation at bottom and oxide spike forming in the center of the specimen. Chemical etchant used highlights aluminum in the microstructure. Microstructure shown as white in image More
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Published: 15 January 2021
Fig. 7 Typical thermomechanical fatigue (TMF) waveforms used in laboratory testing. (a) In-phase TMF. (b) Out-of-phase TMF. Image (b) adapted from Ref 6 , with permission from Elsevier More
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Published: 30 August 2021
Fig. 15 Examples of thermomechanical fatigue cracking and oxidation in a first-stage turbine blade More
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Published: 01 January 1996
Fig. 58 Effects of intermediate thermomechanical treatments (ITMT) on (a) fatigue crack initiation and (b) fatigue crack propagation of 7XXX aluminum alloys. Source: Ref 113 More