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Thermal shock

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Published: 01 July 2009
Fig. 10.5 Half-cycles of thermal strain-induced hysteresis. (a) Thermal down-shock followed by equilibrium temperatures. (b) Thermal up-shock following Space Shuttle Main Engine firing More
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Published: 01 September 2008
Fig. 1 Schematic representation of thermal stresses resulting from a sudden change, Δ T , of the surface temperature and thermal shock resistance More
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Published: 01 August 2005
Fig. 7.2 The normalized tensile strength, σ t / E , plotted against coefficient of linear thermal expansion, α. The contours show a measure of the thermal shock resistance, Δ T . Corrections must be applied for constraint and to allow for the effect of thermal conduction during quenching More
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Published: 01 December 1989
Fig. 4.56. Variation of steady-state crack growth (over 2.5 to 7.5 mm, or 0.1 to 0.3 in.) in several alloys with maximum temperature in thermal shock ( Ref 201 ). More
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Published: 01 December 1995
Fig. 2-82 Critical turbine components cast of hardenable martensitic stainless steel alloy for high strength and resistance to thermal shock. Clockwise from top: free turbine exhaust case, intermediate case, diffuser case More
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Published: 01 April 2004
Fig. 2.30 Resistance of a flip-chip daisy chain between silicon and alumina, versus the number of cycles ( N ) of a thermal shock test +25 to –196 °C, 30 s dwell for the solders indicated. Adapted from Shimizu et al. [1995 ] More
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Published: 01 January 2000
can lead to fatigue at the junction. Flexible hose can help alleviate this situation. (e) Side-supply pipework might be too rigid to sustain thermal shock from a recurring sequence that involves (1) air under pressure, (2) steam, and (3) cold water. More
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Published: 01 December 2015
can lead to fatigue at the junction. Flexible hose may help alleviate this situation. (e) Side-supply pipework may be too rigid to sustain thermal shock from a recurring sequence that involves (1) air under pressure, (2) steam, and (3) cold water. More
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Published: 01 August 1999
can lead to fatigue at the junction. Flexible hose can help alleviate this situation. (e) Side-supply pipework can be too rigid to sustain thermal shock from a recurring sequence that involves (1) air under pressure, (2) steam, and (3) cold water. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170573
EISBN: 978-1-62708-297-6
... complex grades, multigrades, or steel-cutting grades. Adding TaC to WC-TiC-Co alloys partially overcomes the deleterious effect of TiC on the strength of WC-Co alloys. Tantalum carbide also resists cratering and improves thermal shock resistance. The latter property is particularly useful in applications...
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
... in adjacent regions. If these stresses are high enough, fracture will occur. Differences in resistance to thermal shock between different grades of glass are related to differences in their coefficients of thermal expansion. Larger stresses arise in materials with high coefficients of thermal expansion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550569
EISBN: 978-1-62708-307-2
... the coalescence of thermal shock-induced cracks into critical flaws, result in enhanced thermal shock resistance relative to the monolithic ceramic. Because of their superior properties and their relative ease of manufacture, whisker-toughened CMCs have had more commercial success to date than any...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550511
EISBN: 978-1-62708-307-2
..., and carbides. Classification of advanced ceramics Table 10.1 Classification of advanced ceramics Main function Properties required Applications (examples) Thermal High-temperature and thermal shock resistance, thermal conductivity (high or low, respectively) High-temperature components...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130001
EISBN: 978-1-62708-284-6
... shock, due to a sudden immersion in a cold medium, without cracking depends on its thermal expansion coefficient, α; tensile strength, σ t , for metals; Young’s modulus, E ; thermal conductivity, λ; and heat-transfer coefficient, h . A temperature change of Δ T applied to a constrained body...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200298
EISBN: 978-1-62708-354-6
...) reduces room-temperature ductility and toughness. If this exposure is combined with service in a carburizing environment, the loss of ductility is even greater, as shown in Figure 22-8 . In order to prevent brittle fractures, impact and excessive thermal shock to components in this condition should...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... with low densities of 0.054 to 0.072 lb/in. 3 (1.49 to 1.99 g/cm 3 ). Their low thermal expansion and range of thermal conductivities provide high thermal shock resistance. In vacuum and inert gas atmospheres, carbon is an extremely stable material, capable of use to temperatures exceeding 4000 °F (2205...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310225
EISBN: 978-1-62708-286-0
... 1830–2190 Oxidation resistance, thermal shock resistance ALFA-IV (FeCrAl) Center pipe 400–600 750–1110 Salt damage resistance 409HP (UNS S40930, dual-stabilized T409) 409 ALMZ (aluminized 409) T439HP (UNS S43035, dual-stabilized T439) 441 (DIN 1.4509) 18CrCb (DIN 1.4509...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900219
EISBN: 978-1-62708-358-4
... soften rapidly at hot-working temperatures. Resistance to shock . Good resistance to mechanical and thermal shock and good notch toughness are required to prevent cracking and catastrophic failure. For this reason, the carbon contents of the H steels are maintained at low or medium levels...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310285
EISBN: 978-1-62708-326-3
... preheating tool steels before austenitizing is sound practice, it is not always required. For small pieces of simple shape, this step may often be omitted. Preheating is normally employed as a safeguard against the cracking and extreme distortion that can result from the thermal shock to which a cold...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
... at temperatures greater than approximately 0.3 to 0.5 of the absolute melting point. In creep, thermal activation enables plastic deformation at stresses below those needed to deform the lattice without thermal activation. When a metal is placed under a constant load, it stretches elastically but also gradually...