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thermomechanical processing

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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 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 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...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001819
EISBN: 978-1-62708-241-9
...) and have some advantages, mainly higher strength, higher resistance to intergranular corrosion, and lower cost when compared with austenitic stainless steels. On the other hand, DSSs have some disadvantages, such as difficult thermomechanical processing and low resistance to pitting corrosion [ 2...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001636
EISBN: 978-1-62708-217-4
... and metallography relied mainly on scanning electron microscopy (SEM). The Failure Analysis Topics Table 1 The Failure Analysis Topics Hub Manufacture Thermomechanical processing and heat treatment Metallurgical defects Microstructural factors influencing fatigue Chemical composition...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001804
EISBN: 978-1-62708-241-9
... (to bones), and ease of manufacture by different thermomechanical processes and availability/low cost [ 3 – 5 ]. The requirements of chemical composition, microstructure and mechanical properties are well established in standards edited by international institutions such International Organization...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001603
EISBN: 978-1-62708-228-0
.... , Edwards P.D. , and Kelly P.G. : Int. Conf. Thermomechanical Processing of Steels and Other Materials, Thermec ’97 , TMS , Australia , 1997 , pp. 475 – 82 . 5. Ramaswamy V. , Datta R. , Chaudhuri S.K. , and Mishra S. : Proc. Symp. Emerging Technologies for New...
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
... that occur during creep testing affect properties. Although such changes may be unavoidable, in many cases, thermomechanical processing schedules can be established to influence the changes so that they tend to strengthen the material or minimize the overall effect. For example, if a heterogeneous...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... such changes may be unavoidable, in many cases, thermomechanical processing schedules can be established to influence the changes so that they tend to strengthen the material or minimize the overall effect. For example, if a heterogeneous precipitate is formed during creep, a simple heat treatment or cold work...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001602
EISBN: 978-1-62708-229-7
... on elements thought to have influenced the failure process: a) the stress increase from the loss of a load bearing cross-sectional area of the bucket tip shroud by the conversion of metal to the corrosion product (scale), b) influence of the tip shroud microstructure (e.g., a presence of equiaxed and columnar...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001056
EISBN: 978-1-62708-214-3
.../asm.hb.v11.a0003544 • Antolovich S.D. and Saxena A. , Thermomechanical Fatigue: Mechanisms and Practical Life Analysis , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 738 – 745 10.31399/asm.hb.v11.a0003546 Type 347 stainless steel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001593
EISBN: 978-1-62708-234-1
.... The techniques utilized included scanning electron microscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry, thermomechanical analysis, and melt flow rate determination. It was the conclusion of the investigation that the part failed via brittle fracture, with evidence also...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001609
EISBN: 978-1-62708-229-7
..., depending on the specific composition of the alloy and its thermomechanical processing history. When alloy 430 is only partially annealed during PWHT, slow furnace cooling of the weld and HAZ from above 650 °C (1200 °F) allows agglomerated carbides and pearlite to form. Rapid cooling from 650 °C (1200...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001852
EISBN: 978-1-62708-241-9
... at www.finishing.com with permission of AESF. Accessed June 2009 4. Lohe D. , Beck T. , Lang K.H. : Important aspect of cyclic deformation, damage and lifetime behaviour in thermomechanical fatigue of engineering alloys . In: Portella P.D. , Sehitoglu H. , Hatanaka K. (eds...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001850
EISBN: 978-1-62708-241-9
... thermomechanical processing . Ph.D thesis, University of Pittsburgh ( 2005 ). http://d-scholarship.pitt.edu/6884/1/KFHPDF3.pdf 6. ASME Handbook , vol. 4 , p. 651 7. ASM Metals Handbook , vol. 11 , p. 506 10.1186/s13071-018-3083-2 8. Chen J. , Young B. , Uy B. : Behavior...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... an impact on SCC susceptibility. When selecting a material resistant to SCC, it is important not only to understand its bulk chemical composition and observable microstructural constituents but also to consider the processing (e.g., thermomechanical history) of the material and the levels of chemical...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... temperature or time Composition, thermal stability, evolved gas analysis Thermomechanical analysis (TMA) Dimensional changes over temperature Coefficient of thermal expansion, material transitions, molded-in stress, chemical compatibility Dynamic mechanical analysis (DMA) Elastic modulus, viscous...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048498
EISBN: 978-1-62708-234-1
... discrepancies existed in either fabrication or processing. Accordingly, sections of the skin, spar, and rib panels were examined to verify the lay-up and to determine the overall panel quality. In addition, thermomechanical analyses (TMA) were performed to verify the extent of cure. Dimensions of panel, spar...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0090463
EISBN: 978-1-62708-234-1
... contact inserts. Investigation supported the conclusion that the switch housings failed via brittle fracture, likely through a creep mechanism. The failure was caused by severe embrittlement of the housing resin associated with massive molecular degradation produced during the molding process. A potential...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001011
EISBN: 978-1-62708-229-7
... that the process of creep was not operative throughout the life of the equipment. Outlet tubes Overheating Oxidation Superheaters 2.25Cr-1Mo Creep fracture/stress rupture Thermal fatigue fracture After some 87,000 h of operation, failure took place in the bend of a steam pipe connecting a coil...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090451
EISBN: 978-1-62708-218-1
... the parts to alternating temperatures of -40 and 180 deg C (-40 and 360 deg F)). Prior to molding, the resin had reportedly been dried at 135 deg C (275 deg F). The drying process usually lasted 6 h, but occasionally, the material was dried overnight. Comparison investigation (visual inspection, 20x SEM...