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ductile to brittle transition

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Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001040
EISBN: 978-1-62708-161-0
..., solidification, and rolling practices, as well as the resulting microstructure. All carbon and high-strength low-alloy (HSLA) steels undergo a ductile-to-brittle transition as the temperature is lowered. The composition of a steel, as well as its microstructure and processing history, significantly affects both...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003305
EISBN: 978-1-62708-176-4
.... This article provides a discussion on fracture toughness of notched materials by explaining the ductile-to-brittle fracture transition and by correlating KId, KIc, and Charpy V-notch impact energy absorptions. It highlights the effects of constraint, temperature, and loading rate on the fracture transition...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005167
EISBN: 978-1-62708-186-3
... formable. Although molybdenum and tungsten are given a final stress relief, they retain their cold-worked structure. Figure 1 shows the effect of heat treatment and strain hardening on the ductility and the ductile-to-brittle transition temperature range of unalloyed molybdenum. The curves in Fig. 1...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
.... It illustrates how surface degradation of a plain strain tension specimen alters the ductile brittle transition in polyethylene creep rupture. The article concludes with information on the effects of temperature on polymer performance. creep rupture ductile brittle transition environmental stress...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000625
EISBN: 978-1-62708-181-8
... illustrate the ductile fracture, interlaminar failure, transgranular cleavage and fracture, tension-overload fracture, longitudinal and transverse cracking, fiber splitting, stress rupture, and low-cycle fatigue of these composites. ductile to brittle transition fractograph metal-matrix composites...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003308
EISBN: 978-1-62708-176-4
... , American Society of Mechanical Engineers , New York , 1984 21. Joyce J.A. , Predicting the Ductile-to-Brittle Transition in Nuclear Pressure Vessel Steels from Charpy Surveillance Specimens , Recent Advances in Fracture , Minerals, Metals and Materials Society/AIME , 1997 , p 65 – 75...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000603
EISBN: 978-1-62708-181-8
...-to-brittle transition. Fig. 62 : Fracture surface of ferritic ductile iron tested at −40 °C (−40 °F). Note river patterns and plateaus characteristic of brittle fractures. SEM, 150×. Fig. 63 and 64 : High-magnification views compare internodular areas of ferritic ductile irons tested at room temperature...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005677
EISBN: 978-1-62708-198-6
... Table 12 Friction and wear properties of acrylic and porcelain denture teeth for single-pass sliding Material Coefficient of friction (β) Ductile-to-brittle transition load, N Acrylic teeth Dentsply  Dentin 0.62 …  Enamel 0.62 4.8 Myerson  Dentin 0.55 …  Enamel...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003166
EISBN: 978-1-62708-199-3
... is obtained in warm-finished wrought material. Alpha-uranium exhibits a ductile-to-brittle transition in the vicinity of room temperature. The presence of even very small amounts of dissolved hydrogen (fractional parts per million) increases the ductile-to-brittle transition temperature. Warm working makes...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002399
EISBN: 978-1-62708-193-1
... pronounced for a ferritic matrix than for a pearlitic matrix. Furthermore, the compacted graphite cast iron seems to have a somewhat lower ductile-to-brittle transition temperature than ductile iron, possibly because the ductile fracture has been made easier relative to cleavage by the formation of compacted...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003104
EISBN: 978-1-62708-199-3
... or more of the following factors: removal of individual atoms, plastic deformation, ductile or brittle fracture, and cutting, fatigue, adhesion, and chemical-electrochemical effects. An inherent problem exists in any classification scheme that relies mainly on labels implying mechanisms. Overuse...
Book Chapter

By Bruce Craig
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003634
EISBN: 978-1-62708-182-5
...-to-brittle transitions in hydrided zirconium. Source: Ref 35 Fig. 23 Effect of hydrogen and combined carbon, nitrogen, or oxygen and hydrogen on the temperature dependence of ductility in vanadium. Source: Ref 36 Fig. 3 The stress-intensity K dependence of crack growth rate da/dt...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... by quasicleavage. In this case, the alloy is ductile on a macroscopic level, but fractures in a brittle manner on a microscopic scale. Thus, there are cases in which fractures that are ductile or brittle macroscopically have the opposite behavior on a microscopic scale. Ductile-to-Brittle Transition Body...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
.... It describes the general aspects of fracture modes and mechanisms. The article briefly reviews some mechanistic aspects of ductile and brittle crack propagation, including discussion on mixed-mode cracking. Factors associated with overload failures are discussed, and, where appropriate, preventive steps...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
...-cubic metals, such as ferritic steels, and also some hexagonal-close-packed metals, undergo a ductile-to-brittle transition in their fracture behavior. Fractures that arise from this phenomenon have an especially insidious character because they can occur without warning under static loading at stresses...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003254
EISBN: 978-1-62708-176-4
... to be approximately independent of temperature. The yield strength, however, will increase with decreasing temperatures as discussed previously. The temperature where the two curves intersect (T1 in Fig. 17 ) is considered to be the ductile-to-brittle transition temperature (DBTT) for the metal. Above...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001426
EISBN: 978-1-62708-173-3
... above their respective transition temperatures to avoid cracking during welding. Postweld annealing for stress relief helps improve weld ductility. The brittle behavior is principally the result of the large grain size in the HAZ and fusion zone. By reducing the grain size difference between the parent...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003025
EISBN: 978-1-62708-200-6
... similar to that of the isometric curve. For some plastics, notably the crystalline ones, there is a point at which their behavior changes fairly abruptly from ductile to brittle or mixed mode. For others, the transition is much more gradual. Environmental stress cracking can be regarded...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006255
EISBN: 978-1-62708-169-6
.... Rhenium can be annealed in either hydrogen or vacuum furnaces. Tungsten is quite ductile at high temperatures but undergoes a transition from ductile to brittle behavior as temperature is lowered. If the working temperature is too low, tungsten cracks and splits. Tungsten also becomes brittle...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002397
EISBN: 978-1-62708-193-1
... steels, manganese or nickel is most commonly added to reduce the ductile-to-brittle transition temperature. In addition, grain refiners such as aluminum may cause net improvements in low-temperature toughness. Rare-earth additions such as cerium often are made for inclusion shape control to improve...