1-20 of 109 Search Results for

subcritical crack growth

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 August 2005
Fig. 7.5 Environmental subcritical crack growth in glasses. (a) Crack velocity as a function of environment and pH for vitreous silica glass. Source: Ref 7.5 . (b) Soda-lime glass tested at different temperatures. Source: Ref 7.5 . (c) Crack velocity curves for sapphire in moist air (25 °C More
Image
Published: 01 December 2015
Fig. 18 Effect of humidity on subcritical crack growth of high-strength aluminum alloys in hydrogen gas. Source: Ref 29 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540297
EISBN: 978-1-62708-309-6
... on how they compare with metals. It begins by describing the fracture characteristics of ceramics and glasses along with typical properties and subcritical crack growth mechanisms. It then discusses the properties of engineering plastics and the factors affecting crack formation and growth, fracture...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610327
EISBN: 978-1-62708-303-4
...Abstract Abstract This chapter covers the fatigue and fracture behaviors of ceramics and polymers. It discusses the benefits of transformation toughening, the use of ceramic-matrix composites, fracture mechanisms, and the relationship between fatigue and subcritical crack growth. In regard...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140069
EISBN: 978-1-62708-335-5
...; typical physical properties; typical and minimum (design) mechanical properties; fatigue strength; fracture resistance, including subcritical crack growth; and resistance to general corrosion and to stress-corrosion cracking. The chapter concludes with information on the properties of cast aluminum matrix...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490329
EISBN: 978-1-62708-340-9
..., and the factors that determine shell integrity. The discussion addresses key properties and design parameters including allowable stress, fracture toughness, the effect of microstructure and composition on embrittlement, high-temperature creep, and subcritical crack growth. The chapter also provides information...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090341
EISBN: 978-1-62708-266-2
...-corrosion or subcritical crack growth behavior leads to what is known as “static fatigue,” in which parts fail after periods of time under a constant load. Although cycling the load can introduce other phenomena, the processes with which this chapter is concerned are not affected. Environmentally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030126
EISBN: 978-1-62708-282-2
...). A decrease in pH from 9 to 6 at potential of –0.2 V, which shifts iron from a region of stability to one of active corrosion, is indicated by the solid bar. For materials in which SCC occurs by a hydrogen-induced subcritical crack growth mechanism, the thermodynamic requirement for crack growth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090001
EISBN: 978-1-62708-266-2
... a region of stability to one of active corrosion, is indicated by the solid bar. For materials in which SCC occurs by a hydrogen-induced subcritical crack growth mechanism, the thermodynamic requirement for crack growth is governed by the hydrogen reduction line shown by dashed line a in Fig...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030148
EISBN: 978-1-62708-282-2
... changes, and blistering becomes the more common feature of failure. The threshold stress intensities for high-strength steels subjected to hydrogen environments are significantly less than those thresholds measured under benign conditions. These lower thresholds lead to subcritical crack growth when...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090067
EISBN: 978-1-62708-266-2
... severe for initiation in uncracked members. 3.3 Stress-Corrosion Cracking Characteristics of Different High-Strength Steels Hydrogen can induce a reduction in the fracture toughness ( K Ic ) as well as produce subcritical crack growth at values of K below K Ic . These effects are illustrated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090317
EISBN: 978-1-62708-266-2
... determination of not only the threshold stress intensity but also the kinetics of crack growth at higher stress intensities, which in turn enables calculation (at least in principle) of the lifetimes of engineering components containing growing subcritical cracks. In practice, more conservative design...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080437
EISBN: 978-1-62708-304-1
... Hydrogen attack occurs more often in subcritical drum boilers that use a recirculating steam-generating system. Adequate control of water chemistry is critical to avoid internal deposition and corrosion of boiler tubes. The water chemistry is typically controlled by (a) water purification to remove...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310127
EISBN: 978-1-62708-326-3
... process of recovery, recrystallization, and grain growth. This is followed by discussions on annealing processes, namely subcritical annealing, critical-range annealing, full annealing, isothermal annealing, annealing for microstructure, and solution or quench annealing. Next, the chapter describes two...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540215
EISBN: 978-1-62708-309-6
...Abstract Abstract This chapter presents a fracture-mechanics-based approach to damage tolerance, accounting for mechanical, metallurgical, and environmental factors that drive crack development and growth. It begins with a review of stress-intensity factors corresponding to a wide range...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780238
EISBN: 978-1-62708-281-5
... behavior of advanced engineering plastics capable of sustaining a substantial subcritical crack growth prior to fracture. Fracture mechanics is also used in safety-critical applications where defect-tolerant life estimates are essential. Characterizing crack growth behavior in polymers can be complicated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630257
EISBN: 978-1-62708-270-9
... of pressure vessels and other engineering structures in which subcritical flaw growth or time-dependent fractures, such as those stemming from stress-corrosion cracking or fatigue, are important. An adequate fracture mechanics analysis of a structure subjected to cyclic loading, a hostile environment, or both...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... are derived from the theory of elasticity and/or obtained experimentally. Stress-concentration curves are available for different design geometries. These curves are useful when investigating a design and doing a life assessment. Stress intensity is the controlling factor in subcritical crack growth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090271
EISBN: 978-1-62708-266-2
... (but not stage I) subcritical cracking behavior. This is the situation in most common aqueous environments, including seawater and brines, where alloy composition and metallurgical condition dictate the susceptibility of a titanium alloy to SCC. Titanium alloys may also be exposed to a few unique...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090191
EISBN: 978-1-62708-266-2
..., the international consensus is that the three with the greatest impact on crack growth rates are the formation of material defects, radiation-induced segregation, and chemical reactions that increase the corrosion potential of water. The chapter discusses each of these in great detail, and includes information...