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elevated-temperature fracture

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
... with the underlying mechanisms in creep deformation and elevated-temperature fracture. It also discusses creep-life prediction and related design methods and some of the factors involved in high-temperature fatigue, including creep-fatigue interaction and thermomechanical damage. References References 1...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630237
EISBN: 978-1-62708-270-9
... occur at elevated temperatures (with the obvious exception of low-temperature brittle fracture). Elevated-temperature problems are real concerns in industrial applications. The principal types of elevated-temperature failure mechanisms discussed in this chapter are creep, stress rupture, overheating...
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
...–1540 1800–2800 0.4–0.45 T m Source: Ref 1 15.1 The Creep Curve 15.2 Stress-Rupture Test 15.3 Creep Deformation Mechanisms 15.4 Elevated-Temperature Fracture 15.5 Metallurgical Instabilities 15.6 Creep Life Prediction 15.7 Creep-Fatigue Interaction 15.8 Design...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540281
EISBN: 978-1-62708-309-6
...Abstract Abstract Large-scale yielding at the crack tip and time-dependent crack growth mechanisms, such as stress relaxation due to creep, are nonlinear behaviors requiring nonlinear analysis methods. This chapter presents two such methods, one based on elastic-plastic fracture mechanics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230163
EISBN: 978-1-62708-298-3
... properties similar to those machining behaviors of unalloyed beryllium for both the hot pressed and sheet materials. Elongation and strength properties of the beryllium-antimony alloys are lower than those for beryllium at elevated temperatures. Fracture toughness values measured in Be-6wt%Sb sheet 1.561...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630013
EISBN: 978-1-62708-270-9
... of 29 to 30 million psi, but this figure is valid only for room temperature. A spring will deflect more at an elevated temperature than at room temperature and must be designed accordingly. A spring used at low temperature will deflect less. Nominal room-temperature values are 15 to 19 million psi...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170337
EISBN: 978-1-62708-297-6
... density; good specific strength; wear resistance 1000 (1830) 900 (1650) Nickel, iron, and titanium aluminides, like other ordered intermetallics, exhibit brittle fracture and low ductility at ambient temperatures. It has also been found that a large number of ordered intermetallics, such as iron...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500083
EISBN: 978-1-62708-317-1
... and cause an unbalanced metal flow, which may lead to premature fracture. The uniaxial tensile test ( Fig. 5.3 ) is probably the most commonly used sheet metal formability test. The specimen is locked at each end and stretched until it fractures. The elevated-temperature tensile testing procedure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.9781627082563
EISBN: 978-1-62708-256-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780417
EISBN: 978-1-62708-281-5
... exposed to moisture and then tested at elevated temperature revealed specific, identifiable fracture characteristics. Composites that were moisture-saturated and then tested at room temperature generally revealed more plasticity in their fracture characteristics than those specimens that were not moisture...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... and brittle fracture and explains how they reshaped design philosophies, procedures, and tools. It also discusses the influence of material and manufacturing defects, operating conditions, stress concentration and intensity, temperature and pressure, and cyclic loading, all of which play a role in the onset...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... of fracture is typically intergranular (along grain boundaries), because creep deformation is associated with the weakening of grain boundaries at elevated temperatures (see Chapter 3, “Mechanical Properties and Strengthening Mechanisms,” in this book). Cyclic thermal stress (expansion and contraction...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240527
EISBN: 978-1-62708-251-8
... and magnesium. Titanium alloys can be used at moderately elevated temperatures, as high as 370 to 595 °C (700 to 1100 °F), depending on the specific alloy. In addition, some alpha titanium alloys, especially the low interstitial grades, can be used in cryogenic applications because they do not exhibit a ductile...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730081
EISBN: 978-1-62708-283-9
... ceramics are compounds consisting of metal and nonmetal ions bonded either covalently or ionically. Most have high melting points and are very hard and brittle. Their tensile strengths are limited by brittle fracture but their compressive strengths are high. Because they retain high hardnesses at elevated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490111
EISBN: 978-1-62708-340-9
... relationship of the type N f = N 0 exp(Q/RT), was found to be 67 kJ/mole (16 kcal/mole). (3) The magnitude of the strain range employed had no effect on the fracture morphology. Increasing the temperature, hold time, and thermal cycling, on the other hand, increased the intergranular component...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500051
EISBN: 978-1-62708-317-1
... preprocessing. Reliable input parameters are needed to model the sheet material for the successful modeling of a stamping simulation at room and elevated temperatures. Introduction of multi-phase steels (advanced high-strength steels, transformation-induced plasticity steels, commercially pure steels) makes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
.... Titanium is nontoxic and generally biologically compatible with human tissues and bones. The combination of high strength, stiffness, good toughness, low density, and good corrosion resistance provided by various titanium alloys at very low-to-elevated temperatures allows weight savings in aerospace...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430149
EISBN: 978-1-62708-253-2
...-temperature creep, graphitization, and dissimilar metal welds. It explains how to determine which mechanisms are in play by interpreting fracture patterns and microstructural details. It also describes the investigation of several carbon and low-alloy steel tubes that failed due to stress rupture...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130043
EISBN: 978-1-62708-284-6
... Fracture Toughness, K Ic , of Metallic Materials, ” E399 – 74 , American Society for Testing and Materials 26. “ Standard Test Method for Conducting Drop-Weight Test to Determine Nil-Ductility Transition Temperature of Ferritic Steels ,” E208 – 95A , American Society for Testing and Materials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200233
EISBN: 978-1-62708-354-6
... are the effect of carbon on increasing hardness ( Figure 18.3 and 18.4 ), the effect of nickel on increasing toughness, and the effect of combinations of chromium, molybdenum, vanadium, and tungsten on increasing elevated-temperature strength. Fig. 18-1 Room-temperature properties of cast low-alloy...