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thermal stress-relief methods

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Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005782
EISBN: 978-1-62708-165-8
... of residual stress, briefly describes the factors influencing the relief of residual stresses, and discusses the various thermal stress-relief methods. It contains tables that provide a summary of compressive and tensile residual stresses at the surface of parts fabricated by common manufacturing processes...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002493
EISBN: 978-1-62708-194-8
... with a discussion on the operations involved in thermal and mechanical stress-relief methods. distortions finite element method mechanical stress relief methods residual stress thermal stress-relief methods ALL THERMO-MECHANICAL manufacturing processes—such as forging, extrusion, casting, heat...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005506
EISBN: 978-1-62708-197-9
... behavior and trivial loading and boundary conditions. The article discusses approximate and advanced solution techniques that can be employed in practice for simulation of residual stress relief: finite-difference method and finite-element method. It also describes advanced techniques applicable...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005945
EISBN: 978-1-62708-168-9
... Hardness Measurement Silicon Content Matrix Carbon Content Quenching Heat, Soak, Hold Rate Cooling Temperature Surface Cleaning Causes of Residual Stresses Stress-Free, As-Cast Castings Testing for Residual Stress Stress Relief Other Stress-Relief Methods Flame Heating...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006286
EISBN: 978-1-62708-169-6
... in single-phase alloys that rely on cold working for strength. Stress relief of β alloys should be done along with a thermal exposure that is compatible with the annealing, solution treating, stabilization, or aging processes. (As noted previously, the aging temperature often is suitable for stress relief...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006252
EISBN: 978-1-62708-169-6
.... , and Peng W. , Thermal Stress Relief in 7050 Aluminum Forgings by Uphill Quenching , Mater. Sci. Forum , Vol 490–491 , 2005 , p 97 – 101 10.4028/www.scientific.net/MSF.490-491.97 56. Johnson G. , “Residual Stress Measurements Using the Contour Method,” School of Materials, Faculty...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006296
EISBN: 978-1-62708-179-5
... cause a serious loss of properties in unalloyed gray irons. The cooling rate after a stress-relief treatment also is important. Because one of the factors in the original development of residual stresses in castings is the occurrence of thermal contraction gradients associated with nonuniform...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006283
EISBN: 978-1-62708-169-6
...Abstract Abstract This article provides a detailed discussion on heat treatment of titanium alloys such as alpha alloys, alpha-beta alloys, and beta and near-beta alloys. Common processes include stress-relief, annealing, solution treating, aging, quenching, and age hardening. It provides...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006561
EISBN: 978-1-62708-290-7
... components due to harmful reactions of loose powder hidden in blind holes of the build plate blown throughout the furnace during the vacuum evacuation Fig. 2 Illustration of the effect of a stress-relief heat treatment on strain in laser-melted iron parts. Source: Ref 3 Fig. 3...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005790
EISBN: 978-1-62708-165-8
... data are in °R), t is time in hours, and C is a constant (from 15 to 25, and often set at 20 for nominal calculations). Thus, if a desired degree of stress relief is achieved in 6 h at 1100 °F (1560 °R, 593 °C, 866 K), then the Rankine-based Larson-Miller parameter for this stress-relief response...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005822
EISBN: 978-1-62708-165-8
...Abstract Abstract Cold treating of steel can be used to enhance the transformation of austenite to martensite and improve the stress relief of castings and machined parts. Cryogenic treatment of steel is a distinct process that uses extreme cold to modify the performance of materials...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002186
EISBN: 978-1-62708-188-7
.... Stress relief should be used only as a last resort to relieve machining-induced stresses. Stress relief may be advisable after rough machining on complex parts or on parts in which extremely close tolerances are required. In these cases, finishing cuts should be taken after stress relieving. Parts should...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002489
EISBN: 978-1-62708-194-8
... distribution of material causing differential heating and cooling during quenching Volume changes caused by phase transformation Nonuniform heat extraction from the part during quenching Thermal expansion All of these factors, except relief of prior residual stresses (second item) and creep...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001298
EISBN: 978-1-62708-170-2
... then be calculated from the measured strain reliefs using the method described in ASTM E 837-92 ( Ref 21 ). The ASTM standard also gives details of practical drilling procedures. Fig. 7 (a) Typical three-element strain-gage rosette. (b) In-plane strain components caused by release of residual stress through...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001034
EISBN: 978-1-62708-161-0
..., process filler metal, heat input, preheat Critical preheat None Low cost Circular groove test Weld metal hot and cold cracks, HAZ hydrogen cracks Process, filler metal, preheat Go/no-go None Costly preparation Implant test HAZ hydrogen cracks, stress-relief cracks Process, filler metal...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006285
EISBN: 978-1-62708-169-6
... Stress Relief Effect of Precipitation Heat Treating on Residual Stress Other Thermal Stress-Relief Treatments Recovery Recrystallization Grain Coarsening Preheating or Homogenization Anneal Full Anneal Partial and Recovery Anneal Interannealing Self-Annealing...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005942
EISBN: 978-1-62708-168-9
... Classes of Gray Iron Stress Relief Examples of Stress Relief Annealing Normalizing Transformation Hardening Quenched and Tempered Properties Austempering Martempering Flame Hardening Induction Hardening Other Surface-Hardening Methods Rate of Heating Rate of Cooling...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003384
EISBN: 978-1-62708-195-5
... reduces the stress concentrations around bolt holes so that there is only a loss of area, with no stress concentration at ultimate load on the remaining (net) section at the joints. With composites, however, there is no relief at all from the elastic stress concentration if the holes or cutouts are large...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.9781627081795
EISBN: 978-1-62708-179-5
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006321
EISBN: 978-1-62708-179-5
..., and the composition and properties of the cast material. If the stresses result in elastic deformation, the casting stresses are permanent. If plastic deformation occurs, the stresses can be progressively relieved ( Ref 4 ). One method of stress relief is weathering, where castings are allowed to stand...