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strain-range partitioning

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Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003314
EISBN: 978-1-62708-176-4
... testing specimen machining surface preparation gripping system THE FATIGUE CRACK INITIATION RESISTANCE of an alloy is determined by conducting a series of tests over a range of values of stress amplitude or strain range. The observed number of cycles to failure is plotted against the stress...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005800
EISBN: 978-1-62708-165-8
... of industrially produced 980 MPa (142 ksi)-grade quenching and partitioning steel Typical mechanical property ranges for current-generation quenching and partitioning (Q&P) steels Table 2 Typical mechanical property ranges for current-generation quenching and partitioning (Q&P) steels Steel...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002391
EISBN: 978-1-62708-193-1
... is considered, then the material undergoes the more general case of TMF. The temperature rise on the surfaces of cylinders and pistons in automotive engines combined with applied cylinder pressures also represents TMF. Based on the mechanical strain range, the results of TF and TMF tests should correlate well...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002402
EISBN: 978-1-62708-193-1
... calculations based on cycle fractions and time fractions require continuous cycling data and stress rupture data, and fatigue damage calculations require the type of fatigue data presented above. Most other approaches, such as strain-range partitioning, ductility exhaustion, and frequency separation, require...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002413
EISBN: 978-1-62708-193-1
... Abstract This article focuses on the isothermal fatigue of solder materials. It discusses the effect of strain range, frequency, hold time, temperature, and environment on isothermal fatigue life. The article provides information on various isothermal fatigue testing methods used to assess...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005421
EISBN: 978-1-62708-196-2
... correspond to two different cavity-growth strain ranges, ε–ε o . In addition, predictions for η = 6.5, values of the constant Q between 0.75 and 1.25, and the same levels of ε–ε o (i.e., ∼0.14 and ∼0.22) are also shown in the graph as shaded areas. It can be seen that the correlation embodied in Eq 14...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002469
EISBN: 978-1-62708-194-8
... caused by small errors in controlling the load and by the small tangent modulus in the plastic range. Strain-controlled testing limits the strains automatically. Figure 13 explains the terminology used in low-cycle fatigue testing. The terms are essentially the same as shown in Fig. 1 , except...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006352
EISBN: 978-1-62708-179-5
...%) KIc plain-strain fracture toughness, stress-intensity factor RAR relative abrasion resistance KId dynamic fracture toughness RE rare earth Kt theoretical stress concentration REE rare earth element DK stress-intensity factor range rpm revolutions per minute l length RSF roundness shape factor L liquid...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005542
EISBN: 978-1-62708-197-9
... testing deep drawing flat rolling fluid mechanics solidification strain strain rate stress tension testing torsion testing wire drawing Casting and solidification Table 1 Casting and solidification Law or rule Equation Importance Ref Partition coefficient k i...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005401
EISBN: 978-1-62708-196-2
... performance (e.g., strength, elastic modulus, ductility, fracture toughness) of metallic materials. Crystallographic texture, or simply texture for succinctness, may arise as a result of large-strain deformation, dynamic/static recrystallization, grain growth, or phase transformation ( Ref 1 ). A second form...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003739
EISBN: 978-1-62708-177-1
... in nonferrous systems. bainite ferrous metals nonferrous metals surface relief BAINITE describes the resultant microstructure in steels of the decomposition of austenite (γ) into ferrite (α) and cementite (Fe 3 C) in the temperature range above the martensitic transformation and below...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006910
EISBN: 978-1-62708-395-9
... Abstract There are many different types of polymeric materials, ranging from glassy to semicrystalline polymers and even blends. Their mechanical properties range from pure elastic with very high strains to fracture (elastomers) to almost pure linear elastic (Hookian behavior) with low strains...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005517
EISBN: 978-1-62708-197-9
..., such as thermophysical and physical properties, temperature- and strain-rate-dependent mechanical properties, properties for use in the modeling of quench distortion, and properties for use in solidification modeling, is also reviewed. The article also describes the linking of thermodynamic, kinetic, and material...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005658
EISBN: 978-1-62708-198-6
... of transformation, ε t is the transformation strain, and T o is the transformation temperature. Values for d σ/ dT , often called the stress rate, range from 4 to 15 MPa/°C, but for superelastic alloys commonly used in medical devices, that range is reliably 5 to 6 MPa/°C. As shown subsequently, this turns out...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005962
EISBN: 978-1-62708-168-9
... in the two ASTM International standards ( Ref 32 , 33 ). The minimum-to-maximum ranges for yield and tensile strength requirements as a function of heat treatment class and thickness are summarized in Table 3 . In general, higher strengths are attained in thinner steel plates, whereas lower strengths...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002350
EISBN: 978-1-62708-193-1
...” regime for materials that do not show a fatigue limit. The use of a consistent quantity, strain, in dealing with both, rather arbitrarily described “high-” and “low-cycle” fatigue ranges, has considerable advantages. Work in this area was underway in the 1950s ( Ref 25 , 26 ). Cyclic thermal...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009010
EISBN: 978-1-62708-185-6
... or forging should be attempted only with light reductions, low strain rates, and an insulating coating. 30–40 Marginal hot workability. Numerous cracks This ductility range usually signals the minimum hot-working temperature. Rolled or press forged with light reductions and lower-than-usual strain rates...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003993
EISBN: 978-1-62708-185-6
... superalloys wrought heat-resistant alloy forgings THE FORGING INDUSTRY, since the 1980s, has incorporated numerous technological innovations in the control and simulation modeling of temperature, strain, and strain-rate conditions. In earlier years, forging was very much an art form, based on methods...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003989
EISBN: 978-1-62708-185-6
... bites (the distance the billet is advanced per stroke of the dies) and drafts (the change in thickness of the billet per stroke of the dies), which partitions the forging strain predominantly to the surface of the billet. The high stroke rates produce substantial adiabatic heating of the billet during...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003742
EISBN: 978-1-62708-177-1
..., the presence of solute atoms, short-range ordering of solutes, temperature, strain rate, monotonic deformation mode/slip pattern, and amount of strain: Stacking fault energy modifies the ability of a dislocation to glide onto an intersecting slip plane, that is, to cross slip. Three-dimensional mobility...