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thermal softening

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460017
EISBN: 978-1-62708-285-3
...: the velocity of sound, which is reached in the smallest cross section of the nozzle, increases and thus, so does the achievable particle velocity; and higher particle impact temperatures enhancing thermal softening, which decrease the critical velocity. Together, these effects result in a higher excess above...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
... X. , Liao H. , Guo Z. , Li W. , and Coddet C. , Deposition Behavior of Thermally Softened Copper Particles in Cold Spraying , Acta Mater. , Vol 61 ( No. 14 ), 2013 , p 5105 – 5118 10.1016/j.actamat.2013.04.041 3.40 Wang F.F. , Li W.Y. , Yu M...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... in increased wear. The reason for this is that the longer the die is in contact with the hot billet, the more the temperature of the dies increases and the temperature of the billet decreases. The increased die temperatures cause decreased die hardness due to thermal softening. Therefore, abrasive wear...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780267
EISBN: 978-1-62708-281-5
... and thermal conditions arising at the contact points due to sliding. The interfacial wear is defined as the removal of the material due to interfacial friction energy dissipation between asperities, leading to events such as material softening, transfer wear, and chemical wear. A schematic of the processes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040277
EISBN: 978-1-62708-300-3
... materials and their response to surface engineering [ Krishnadev et al., 1997 ] Material Impact toughness Hot hardness Resistance to die softening Thermal checking resistance Wear resistance Resistance to surface engineering (a) H13 Medium Medium Medium High Medium Ion nitriding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780249
EISBN: 978-1-62708-281-5
... propagation. Mechanisms of Fatigue Failure Depending on the stress amplitude and the frequency of load application, fatigue failure of some polymers has been observed to occur by one of two general mechanisms. The first involves thermal softening (or yielding), which precedes crack propagation, leading...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240469
EISBN: 978-1-62708-251-8
... exposures at moderately elevated temperatures can be a concern, especially in electrical and electronic applications where I 2 R heating is a factor. For applications above room temperature, thermal softening can occur over extended periods, and characteristics such as the half-softening temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490265
EISBN: 978-1-62708-340-9
... arise when this method is used to calculate the life expenditure at blade-groove walls. It is well known that Cr-Mo-V rotor steels are subject to long-term degradation of creep properties due to strain-induced thermal softening. Rupture data such as those in Fig. 6.10 are based on short-term tests...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870325
EISBN: 978-1-62708-344-7
... that shed light on the fatigue behavior and crack growth mechanisms of common structural polymers and moves on from there to discuss the fatigue behavior of bone and how it compares to stable and cyclically softening metals. It also discusses the fatigue characteristics of engineered and composited ceramics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430379
EISBN: 978-1-62708-253-2
... to have a continual source of incoming water. This incoming water is termed make-up water. It is raw water that is pretreated through processes such as demineralization or softening for its subsequent use for steam generation. 7.1.2 Condensate Water In a typical thermal power plant, low-pressure...
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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780343
EISBN: 978-1-62708-281-5
..., tan delta Mechanical properties, phase transitions, damping, softening cross linking Thermal-mechanical analysis (TMA) Penetration temperature, expansion coefficient Phase changes, T g , T m , dimensional stability, modulus, compliance, deflection temperature under load, Vicat temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870009
EISBN: 978-1-62708-344-7
... or soften with continued strain reversals. It compares and contrasts the response patterns of such materials, explaining how the movement of dispersed particles and dislocations influences their behavior. It then examines the behavior of materials under uniaxial strain reversals of varying amplitude...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240243
EISBN: 978-1-62708-251-8
... and growth occurs. It describes the most effective methods of improving fatigue life. The chapter also explains the effect of geometrical stress concentrations on fatigue. In addition, it explores the environmental effects of corrosion fatigue, low-temperature fatigue, high-temperature fatigue, and thermal...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310285
EISBN: 978-1-62708-326-3
... advantageous to relieve this stress whenever the tool is redressed, by retempering at an appropriate temperature. This should not exceed the tempering temperature of the steel, which would cause undesirable softening of the tool. Stress relieving is most commonly performed in air or atmosphere furnaces...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
.... 11 Thermally activated dislocation climb. Source: Ref 3 Fig. 12 Diffusion creep mechanisms. Source: Ref 3 Fig. 20 Logarithmic plot of stress-rupture stress versus rupture life for Co-Cr-Ni-base alloy S-590. The significance of inflection points A, B, N, O, and Y is explained...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240411
EISBN: 978-1-62708-251-8
.... Wear resistance: The abrasion resistance of a tool often determines its useful life. Shock resistance: In many operations, tools are loaded rapidly and must therefore be capable of sustaining stresses created during both mechanical and thermal shock loading. Toughness is a measure of the ability...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.9781627083447
EISBN: 978-1-62708-344-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240117
EISBN: 978-1-62708-251-8
...Abstract Abstract Annealing, a heat treatment process, is used to soften metals that have been hardened by cold working. This chapter discusses the following three distinct processes that can occur during annealing: recovery, recrystallization, and grain growth. The types of processes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290139
EISBN: 978-1-62708-319-5
.../h (2.2 lb/h), reported in U.S. dollars Approach Capital cost, $1000s Comments Thermal, air 20 120 h cycle, applicable to oxide powders Thermal, inert 40 Heated retort, requires gas flow Vacuum 55 and up Requires cold trap, mechanical pumped system Sublimation 40 Large...