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Creep fracture/stress rupture

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240265
EISBN: 978-1-62708-251-8
... and the approaches to design against creep. creep creep curves stress-rupture test Nabarro-Herring creep Coble creep transgranular fracture intergranular fracture creep life prediction creep-fatigue interaction metallurgical instabilities FOR METALS AT LOW TEMPERATURES, yield strength is usually...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
... Abstract This chapter compares and contrasts the high-temperature behaviors of metals and composites. It describes the use of creep curves and stress-rupture testing along with the underlying mechanisms in creep deformation and elevated-temperature fracture. It also discusses creep-life...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490059
EISBN: 978-1-62708-340-9
... cumulative damage under changing conditions, and how to assess the effect of multiaxial stress based on uniaxial test data. It also includes information on rupture ductility, creep fracture, and creep-crack growth and their effect on component life and performance. References References 1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430149
EISBN: 978-1-62708-253-2
... that failed due to stress rupture. boiler carbon steel creep rupture low-alloy steel mechanical components steel tubes stress rupture failure Mechanical components of a boiler can fail due to reasons such as creep, fatigue, erosion, and corrosion. Creep is defined as the time-dependent...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630237
EISBN: 978-1-62708-270-9
... times, or higher temperatures promote intergranular fracture. Sometimes components subjected to elevated temperatures do not fail or crack but distort. Fig. 4 Comparison of wedge-shaped cracks and creep voids: (a) triple-point stress rupture (60×); (b) creep cavitation damage (arrows...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
... images, diagrams, and explanations. It discusses the various factors that influence strength and ductility, including grain size, loading rate, and temperature. It also provides information on the origin of residual stresses, the concept of toughness, and the damage mechanisms associated with creep...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490265
EISBN: 978-1-62708-340-9
... Bore Cracking Rim Cracking Rotor Surface Cracking Remaining-Life-Assessment Methods for Rotors Crack Growth Analytical Methods for Crack Initiation Creep-Life Expenditure Low-Cycle Fatigue Creep-Rupture and Stress-Rupture Material Properties Toughness Time-Independent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430147
EISBN: 978-1-62708-253-2
... of this chapter along with relevant case studies. Stress Rupture Failures Mechanical components of a boiler can fail due to reasons such as creep, fatigue, erosion, and corrosion. Creep is defined as the time-dependent deformation of a material at elevated temperature under mechanical stresses of constant...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270067
EISBN: 978-1-62708-301-0
... 1 mm from the leading edge. Intergranular initiation and propagation of cracks are the principal mode of fracture in high-temperature creep/stress rupture. Void formation and cracking occur principally along the grain boundaries normal to the major stress axis of the blade. The progress of the crack...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060001
EISBN: 978-1-62708-343-0
... activity in an aluminum specimen after 210 h creep under a stress of 19 MPa (1.4 ton/in. 2 ) at 250 °C (480 °F). Original magnification 150×. Source: Ref 1.18 . (b) Intergranular fissures near fracture surface of austenitic stainless steel at 750 °C (1380 °F). Source: Ref 1.19 Fig. 1.5...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930163
EISBN: 978-1-62708-359-1
... High-temperature creep Fracture includes the conventional static failure modes, such as brittle fracture, ductile fracture, plastic collapse, buckling, as well as dynamic fracture. Fatigue failure is caused by cyclic loading. Environmentally assisted cracking includes corrosion, stress-corrosion...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060021
EISBN: 978-1-62708-343-0
... 10.1016/0001-6160(79)90105-6 2.2 Ashby M.F. and Brown L.M. , Perspectives in Creep Fracture , Pergamon Press , Oxford , 1983 , p 13 2.3 Larson F.R. and Miller J. , A Time-Temperature Relationship for Rupture and Creep Stresses , Trans. Am. Soc. Mech. Eng. , Vol...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200083
EISBN: 978-1-62708-354-6
.... Castings can be efficiently designed for the proper section stiffness and resistance to buckling. At high temperatures, time-dependent deformation can occur at stresses below the short-time tensile yield strength. This creep deformation may cause failure by excessive deformation. Stress rupture or time...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... not as serious (or as sudden) as fracture, because wear is usually anticipated. Failures can also be induced by service temperatures. Examples include creep deformation and rupture at elevated temperature, or the brittle fracture of body-centered cubic (bcc) metals at low temperatures. Cyclic stress (fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060083
EISBN: 978-1-62708-343-0
.... and Halford G.R. , Fatigue and Durability of Structural Materials , ASM International , 2006 10.31399/asm.tb.fdsm.9781627083447 5.17 Conrad H. , The Role of Grain Boundaries in Creep and Stress Rupture , Mechanical Behavior of Materials at Elevated Temperatures , Dorn J.E. , Ed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
... restriction in free movement in that region. Creep-Fatigue Interaction Creep-fatigue interaction is a complex process of damage involving creep deformation and cyclic stresses, and the predominant damage mode can range from fatigue crack growth at higher frequencies and lower temperatures to creep...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280211
EISBN: 978-1-62708-267-9
... are called stress-rupture tests. The word “creep-rupture” refers to tests where time to given creep values is recorded, but creep-rupture often is used interchangeably with stress rupture. Cyclic (fatigue) tests also are run in the various fatigue regions. These tests generally are cyclic-rate dependent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780185
EISBN: 978-1-62708-281-5
... failure. Fig. 7 Typical creep and creep rupture curves for polymers. (a) Ductile polymers. (b) Brittle polymers Macroscopic yielding and fracture may not always be appropriate criteria for long-time duration material failure. For some plastics, stress crazing, stress cracking, or stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080379
EISBN: 978-1-62708-304-1
.... The strain rates during creep were 10 –10 s –1 to 10 –8 s –1 . Similar to what was observed earlier in alloy 800H (Fe-33Ni-2Cr-0.4Al-0.4Ti) ( Ref 4 – 6 ), Guttmann et al. ( Ref 7 ) observed that alloy HR3C (Fe-20Ni-25Cr-0.5Nb-0.2N) showed stress-assisted intergranular corrosion attack under the test...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060173
EISBN: 978-1-62708-343-0
.... and Halford G.R. , Creep under Repeated Stress Reversals , Proc. of the Joint International Conference on Creep , ASME, ASTM, and the Institution of Mechanical Engineers , Aug and Oct 1963 , p 3-42 to 3-48 10.1243/PIME_CONF_1963_178_039_02 8.41 Halford G.R. , Cyclic Creep-Rupture...