1-20 of 169 Search Results for

crack growth retardation

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
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870201
EISBN: 978-1-62708-344-7
... then employ to analyze the crack growth behavior of various materials, including steels and nonferrous alloys, under constant-amplitude loading. The authors then deal with the effects of complex loading using crack retardation and crack closure models to show how load fluctuations can slow crack growth rates...
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 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540281
EISBN: 978-1-62708-309-6
... = 38.5 MPa m , or 35 ksi in . ), crack growth retardation was not supposed to happen. According to the concept of the EAZ, the post-sustained load crack growth should have behaved as shown in Fig. 5.65 . However, the crack growth behavior of this alloy after the sustained load...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780238
EISBN: 978-1-62708-281-5
... decreases the slope, m , and retards crack growth at high crack growth rates due to toughening mechanisms. At low values of stress-intensity range (Δ K ), however, the crack growth rates for the rubber-toughened epoxies are nearly identical to those of the unmodified (neat) resin. At low Δ K levels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090001
EISBN: 978-1-62708-266-2
... of a surface film. It describes bulk and surface reactions that contribute to SCC, including dissolution, mass transport, absorption, diffusion, and embrittlement, and their role in crack nucleation and growth. It also discusses crack tip chemistry, grain-boundary interactions, and the effect of stress...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000059
EISBN: 978-1-62708-313-3
.... , Effect of Ti and Ta on Hot Cracking Susceptibility of Directionally Solidified Ni-Based Superalloy IN792 , Scr. Mater. , Vol 48 ( No. 6 ), 2003 , p 667 – 681 10.1016/S1359-6462(02)00559-6 30. Tsuji H. , Shimizu T. , Isobe S. , and Nakajima H. , Effect of Minor Alloying...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610209
EISBN: 978-1-62708-303-4
... to the increase in strength. In rough surfaces, the crack nucleation phase can be absent, and a work-hardened surface layer is detrimental to crack propagation due to the reduced ductility. Near-surface residual compressive stresses are clearly beneficial, because they can significantly retard microcrack growth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030126
EISBN: 978-1-62708-282-2
... growth as a function of the two strain rate thresholds, ε ˙ 1 and ε ˙ 2 Fig. 9 Schematic of stress-corrosion crack showing important transport and corrosion reactions. A − represents negatively charged anions migrating to the crack tip, M W...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240371
EISBN: 978-1-62708-251-8
.... Severe quenches, such as brine or water, are often required to produce the desired hardness, which greatly increases the susceptibility to distortion and cracking. Plain carbon steels have poor corrosion resistance, and they readily oxidize at elevated temperatures. Alloy steels are alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090257
EISBN: 978-1-62708-266-2
... for SCC crack growth ( Ref 9.67 ). While hydrogen embrittlement can occur in passivating solutions because dissolution is efectively suppressed, high dissolution rates produced in more aggressive solutions could retard the hydrogen embrittlement reaction. Because intergranular SCC is not the major...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610501
EISBN: 978-1-62708-303-4
... metal ions entering the crack solution from the crack walls; and M T + indicates metal ions entering the crack solution from the crack tip. Source: Ref 10 Fig. 19 Experimental crack growth rate as a function of stress intensity for a high-strength steel in humid air. Source: Ref 14...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480095
EISBN: 978-1-62708-318-8
... of elements that form second phases can retard grain growth. Combinations of boron and carbon, beryllium and carbon, and boron and silicon are effective in this respect. Sulfur and carbon also refine grain size. The effect of carbon on the grain size of Ti-11Mo alloy is shown in Fig. 5.22 . Generally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870401
EISBN: 978-1-62708-314-0
... and possibly spontaneous cracks. The crack faces provide additional diffusion surfaces and accelerate the material degradation and growth of the oxidation layer. Severe surface oxidation degradation results in the formation of fiber-matrix disbonds coalescing into transverse surface cracks ( Fig. 15.21...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610327
EISBN: 978-1-62708-303-4
...-weight PMMA Rubber-toughened PMMA High-impact polystyrene Acrylonitrile-butadiene-styrene Polycarbonate Toughened polycarbonate copolyester PMMA, polymethyl methacrylate. Source: Ref 27 Fig. 29 Effect of cyclic frequency on fatigue crack growth rates in (a) polystyrene...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610147
EISBN: 978-1-62708-303-4
... in the crack growth rate da / dn and consequently have a longer fatigue life than would normally be expected. Crack closure mechanisms effectively reduce the Δ K during fatigue cycling, thus retarding the crack growth. Because Δ K is equal to K max – K min and the actual Δ K is reduced because crack...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310079
EISBN: 978-1-62708-326-3
... for cobalt, Ref 12 ) retards the nucleation or growth of diffusion-controlled products during austenite decomposition. The exception is when the chemical composition of the austenite at the moment of quenching may not be the same as that determined by chemical analysis. For example, if carbides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870267
EISBN: 978-1-62708-344-7
... 11.77 Fig. 11.71 Illustration of crack growth arrest by residual stress due to overload. A, slotted notch; B, crack developed at 65 ksi; C, tensile portion of fracture; D, crack developed at 20 ksi. Source: Ref 11.78 Fig. 11.72 Several improvement methods for mild steel specimens...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... to hardenability, especially in amounts greater than 0.8%. The effect of manganese up to 1.0% is stronger in low- and high-carbon steels than in medium-carbon steels. Manganese increases the hardness of tempered martensite by retarding the coalescence of carbides, which prevent grain growth in the ferrite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090221
EISBN: 978-1-62708-266-2
...Abstract Abstract This chapter describes the conditions under which copper-base alloys are susceptible to stress-corrosion cracking (SCC) and some of the environmental factors, such as temperature, pH, and corrosion potential, that influence crack growth and time to failure. It explains...
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
... of crack-growth behavior of Fe-Ni alloy A-286 in air and vacuum at 595 °C (1100 °F) ( Ref 69 ). Fig. 4.37. Design curves from ASME Code Case N-47 for elastic route for austenitic stainless steels and Incoloy 800H ( Ref 78 ). Top: Design fatigue strain range for types 304 and 316 stainless steels...