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Strain aging

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001590
EISBN: 978-1-62708-228-0
... Abstract This case study demonstrates that Alloy 601 (UNS N06601) is susceptible to strain-age cracking. The observation illustrates the potential importance of post weld heat treatment to the successful utilization of this alloy in certain applications. Steam reforming Inconel 601 UNS...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001452
EISBN: 978-1-62708-232-7
... embrittlement had developed following plastic straining and service at a temperature of 260 deg C (500 deg F) suggested that failure resulted from strain-age embrittlement. Brackets Ovens Rimming steel Brittle fracture A bracket which formed part of the carrier of a chain conveyor system used...
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Published: 01 June 2019
Fig. 27 Comparison of bend tests showing brittleness resulting from strain-ageing More
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Published: 01 January 2002
Fig. 8 Rimmed steel tube that failed by brittle fracture after being strain aged by cold swaging. More
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Published: 30 August 2021
Fig. 25 Rimmed steel tube that failed by brittle fracture after being strain aged by cold swaging More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001096
EISBN: 978-1-62708-214-3
... examination indicated brittle fracture caused by strain aging. Replacement of all studs on the man hole cover and examination of the boiler steel in other places were recommended. Steam engines Strain aging EN2 Brittle fracture Background A stud that was part of a manhole cover on an old...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001451
EISBN: 978-1-62708-224-2
... was there any indication of a pre-existing crack or major discontinuity at the point of origin. A sulfur print suggested the hook had been forged from a billet cogged down from an ingot of semi-killed steel. Failure of this hook was attributed to strain-age embrittlement of the material at the surface...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001100
EISBN: 978-1-62708-214-3
... mode with cleavage and ductile, dimpled shear. Hardness values as high as 35 HRC were measured in the bend area. The as-galvanized bolts fractured in a brittle manner. Failure was attributed to improper bending of the bolts, which provided a severely cold-worked bend area susceptible to strain-age...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048840
EISBN: 978-1-62708-220-4
...-stress levels after welding. Lamellar tearing Pressure vessels Strain aging Welded joints ASTM A201 Grade B Joining-related failures Brittle fracture A spherical carbon steel fixed-catalyst bed reactor failed after 20 years of service while in a standby condition ( Fig. 1 ). At the time...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001263
EISBN: 978-1-62708-224-2
.... In addition, the nature of the fracture and the results of the notched bar impact tests showed that in spite of the high C-content, the eye bolt had become brittle as a result of aging. Cleavage Eyebolts Materials selection Strain aging St 37-2N Brittle fracture After several years' use...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001474
EISBN: 978-1-62708-224-2
.... It is possible, therefore, that if over-straining of the hook occurred on a previous occasion, then subsequent ageing of the material may have been a contributory cause of failure. The circumstances strongly suggested that failure of the hook resulted from overloading. At the time of the failure the hook...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001723
EISBN: 978-1-62708-221-1
... the manner of failure experienced by the part in service. As is apparent from Fig. 22 , the groove lay approximately 1 4 in. from the fillet weld and it was considered that the subsequent heating effect from this welding could have led to strain-age-embrittlement of the deformed material...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... is very complex. No engineering component is immune from changes in material properties from mechanical strain, gross damage, and change in material microstructure or embrittlement. Complex engineering failures also can result from simultaneous multiple alterations. Fracture Modes and Mechanisms...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... from changes in material properties from mechanical strain, gross damage, and change in material microstructure or embrittlement. Complex engineering failures also may result from simultaneous multiple alterations. Fracture Modes and Mechanisms When dealing with a fracture (not all failures...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0005695
EISBN: 978-1-62708-180-1
... of terms that have been removed from glossaries created by consensus approval. An example is the term endurance limit. The endurance limit presumably indicates a threshold stress for infinite life in cyclic loading. It appears in S-N data for materials that strain age and is therefore associated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047080
EISBN: 978-1-62708-235-8
... the conclusions that bending of the connector tubes in the annealed condition induced critical strain near the neutral axis of the tube, which resulted in excessive growth of individual grains during the subsequent solution treatment. Recommendations included bending the connector tubes in the T4 temper as early...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006840
EISBN: 978-1-62708-329-4
... in cyclic loading. It appears in S - N data for materials that strain age and is therefore associated with a dislocation-interstitial pinning mechanism. If some event occurs to cause depinning (say, an increased stress), a new saturation stress is obtained; that is, the endurance limit is changed...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006932
EISBN: 978-1-62708-395-9
... ). This extensive work in aging has led to a characterization of basic aging aspects ( Ref 3 ): Aging affects the long-term behavior of plastics. Aging time is the main parameter that affects small-strain properties. In the aging range, all polymers age the same. The small-strain behavior of PS...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006798
EISBN: 978-1-62708-295-2
... . The compilers also discourage the use of terms that have been removed from glossaries created by consensus approval. An example is the term endurance limit . The endurance limit presumably indicates a threshold stress for infinite life in cyclic loading. It appears in S - N data for materials that strain...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001685
EISBN: 978-1-62708-235-8
... in area (%) 15.3 23.2 33.9 38.2 Fig. 8 Ductility versus hydrogen content for aged uranium-0.8 titanium tested at two strain rates. Fig. 9 Fracture paths associated with predominantly ductile failure through martensitic platelets (above) and brittle, mixed mode along martensitic...