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creep-rupture properties

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140243
EISBN: 978-1-62708-335-5
... for a single lot, were available, and these are reported as representative rather than typical values. 201.0-T7 Sand castings: creep rupture and creep properties Table D5.1 201.0-T7 Sand castings: creep rupture and creep properties Temperature Time under stress, h Rupture stress Stress at 1.0...
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Published: 01 December 1989
Fig. 8.15. Comparison of creep-rupture properties of modified 9Cr-1Mo steel weldment and base metal, illustrating effect of type IV cracking ( Ref 54 ). More
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Published: 01 March 2006
Fig. 11.14 Creep-rupture properties of conventionally cast (PWA 659), directionally solidified (PWA 664), and single crystal (directionally solidified monocrystaloy) (PWA 1409). Source: Ref 11.18 More
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Published: 01 December 1995
Fig. 6-35 Creep-rupture properties of Type HK-40 alloy. The scatter bands shown are set arbitrarily at ±20% of the stress for the central tendency line. Such a range usually embraces test data for similar alloy compositions, but should not be considered statistically significant confidence limits More
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Published: 01 March 2002
Fig. 12.58 Typical longitudinal stress-rupture and 1% creep properties for CGDS MAR-M-200 + Hf cast alloy using Larson-Miller parameter (P LM ). Note: P LM = T (C + log t ) where C = Larson-Miller constant, T = absolute temperature, t = time in h. For this plot, C = 20, T = °R (bottom More
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Published: 01 March 2002
Fig. 12.17 Influence of specimen diameter/mean grain diameter ratio and solution temperature on the creep-rupture properties of a wrought nickel-base superalloy tested at 870 °C (1600 °F)/138 MPa (20 ksi). Note: Grain size was a function of solution temperature, as shown on MCR plot. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280211
EISBN: 978-1-62708-267-9
... location influence measured properties. It also provides information and data on the physical and mechanical properties of superalloys, particularly tensile strength, creep-rupture, fatigue, and fracture, and discusses related factors such as directionality, porosity, orientation, elongation...
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Published: 01 December 1989
Fig. 1.8. Uncertainty in creep-rupture life assessment due to scatter in the properties of a Cr-Mo-V steel. More
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
... were adapted from “Assessment and Use of Creep-Ruptures Properties” by H.R. Voorhess and M. Prager in Mechanical Testing and Evaluation , Volume 8, ASM Handbook , ASM International, 2000, and “Creep and Strees-Rupture Failures” in Failure Analysis and Prevention , Volume 11, ASM Handbook , ASM...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
... to the creep-rupture properties, and the type of failure is referred to as stress rupture or creep rupture. Stress or creep rupture is apt to occur when damage is widespread with uniform stress and temperature exposure, as in the situation of thin-section components, such as steam pipes or boiler tubes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490265
EISBN: 978-1-62708-340-9
... arise when this method is used to calculate the life expenditure at blade-groove walls. It is well known that Cr-Mo-V rotor steels are subject to long-term degradation of creep properties due to strain-induced thermal softening. Rupture data such as those in Fig. 6.10 are based on short-term tests...
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
... to be developed to extrapolate long-time properties from tests conducted in a shorter time range. Early Representations of Creep-Rupture Data Creep-rupture properties have been and are now represented by curves such as typically shown in Fig. 2.2 . Stress is plotted against rupture time, usually both...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200298
EISBN: 978-1-62708-354-6
... 19 ... 34 11 ... 45 30-45 W Co ... ... ... 30 ... 26 18 ... 32 ... ... ... 30-45 W Al ... ... ... 54 ... ... 38 ... ... 23 ... ... Note: To convert ksi to MPa, multiply by 6.8947. Creep and Stress Rupture Properties Creep is defined as time dependent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490415
EISBN: 978-1-62708-340-9
.... 9.9. Larson-Miller stress-rupture plots for vane alloys. A very important property that cannot be overlooked in connection with creep strength is creep ductility. Unfortunately, there is very little creep-ductility data from long-time rupture tests. Decreases in rupture ductility may also...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490329
EISBN: 978-1-62708-340-9
... material parameters are primarily taken into account in considering the integrity of shells of pressure vessels in hydrogen service: (1) the creep-rupture properties, which dictate the allowable stresses at various temperatures; (2) the fracture-toughness properties, which dictate inspection requirements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430149
EISBN: 978-1-62708-253-2
... and temperature, it degraded at an accelerated rate due to creep. Conclusions Failure of the tube was attributed to inadequate metallurgical integrity of the tube material, which had poor microstructure and therefore poor mechanical properties. The tube eventually failed due to creep in the stress rupture...
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
.... It explains how to deal with time dependent deformation in design, how to estimate 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430409
EISBN: 978-1-62708-253-2
... Code—2017, are collected for destructive tests such as tensile and impact tests, creep rupture tests, flattening tests, and chemical analysis. The following are brief descriptions on the scope of some of the tests carried out in an RLA of boiler tubes ( Ref 8.2 , 8.4 , 8.5 ). Detailed discussion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.9781627083409
EISBN: 978-1-62708-340-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280025
EISBN: 978-1-62708-267-9
... Improves creep properties B … B, Ta Increases rupture strength B B, Zr B (c) Grain-boundary refiners … … B, C, Zr, Hf Facilitates working … Ni 3 Ti … Retard γ′ coarsening … … Re (a) Not all these effects necessarily occur in a given alloy. (b) Hardening...