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dynamic recrystallization

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240117
EISBN: 978-1-62708-251-8
... the cold working temperature increases, dynamic recovery begins to occur during the deformation process. Therefore, there is less stored energy in the metal to serve as a driving force for recrystallization. Typically, the smaller the number of sides on the recrystallized grain, the sharper the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140071
EISBN: 978-1-62708-264-8
... deformation is being applied rapidly in the forging operation, defects can accumulate in the deformed austenite grains and cause recrystallization to occur during the reduction that occurs on forging. The same is true of hot rolling. This type of recrystallization is often called dynamic recrystallization, in...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410133
EISBN: 978-1-62708-265-5
... 8.41 Jonas J.J. and Sakai T. , A New Approach to Dynamic Recrystallization , Deformation, Processing, and Structure , Krauss G. , Ed., American Society for Metals , 1984 , p 185 – 228 8.42 McQueen H.J. , The Role of Dynamically Recovered Substructure in Dynamic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220353
EISBN: 978-1-62708-259-4
... Schematic presentation of the microstructure evolution during hot working (hot rolling in the example). Two possibilities are illustrated; when the recrystallization starts while the material is still suffering hot working, it is called dynamic recrystallization. Static recrystallization occurs when some...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310127
EISBN: 978-1-62708-326-3
... 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 undesirable...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
... final property of the deposit. For instance, there is evidence of dynamic recrystallization ( Ref 3.22 ) and strain-induced phase transformation ( Ref 3.23 – 3.25 ) in cold spraying. In this case, softening of material, in addition to that resulting from thermally activated dislocation dynamics, would...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780359
EISBN: 978-1-62708-281-5
..., thermogravimetric analysis, thermomechanical analysis, and dynamic mechanical analysis. The article also discusses various analytical methods used to characterize the molecular weight distribution of a polymeric material. It provides information on a wide range of mechanical tests that are available to evaluate...
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
... analysis, namely differential thermal analysis, thermogravimetric analysis, thermal-mechanical analysis, and dynamic mechanical analysis. The following sections provide details on X-ray diffraction for analyzing crystalline phases and on a minimal scheme for polymer analysis and characterization to assist...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040247
EISBN: 978-1-62708-300-3
... development. The processes that control grain structure evolution during hot working of superalloys were found to be dynamic recrystallization, meta-dynamic recrystallization, and static grain growth. Microstructure model formulation is discussed in these three categories. Waspaloy formulas are...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280091
EISBN: 978-1-62708-267-9
... known before a forging process can be designed for a given component. These relationships recognize three distinct types of recrystallization: dynamic, meta-dynamic, and static. Dynamic recrystallization occurs instantaneously during the application of strain to the material. There are critical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980141
EISBN: 978-1-62708-342-3
... close to the container wall drastically changes. The β-rich core then flows forward and the α-rich periphery is held back, resulting in the extrusion piping defect (see “ Extrusion of Semifinished Products in Copper Alloys ,” Fig. 5.56, in Chapter 5 ). Dynamic and recrystallization processes take...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
... the absolute melting temperature. During hot working, the strain-hardened and distorted grain structure produced by deformation is rapidly eliminated by the formation of new strain-free grains as a result of recrystallization. Dynamic recrystallization occurs during deformation, while static...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.9781627083003
EISBN: 978-1-62708-300-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460121
EISBN: 978-1-62708-285-3
... Zou Y. , Qin W. , Irissou E. , Legoux J. , and Yue S. , Dynamic Recrystallization in the Particle/Particle Interface in Cold Sprayed Ni Coatings , Scr. Mater. , Vol 61 , 2009 , p 899 – 902 10.1016/j.scriptamat.2009.07.020 5.53 Zou Y. , Goldbaum D. , and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560125
EISBN: 978-1-62708-291-4
... , 182 , 20 . 10. Boswell F.W.C. , Met. Prog. , 1957 , 72 ( 6 ), 92 . 11. Hatherly M. and Samuels L.E. , J. Inst. Metals , 1956–57 , 85 , 437 . 12. Humphreys P.J. and Hatherly M. , Recrystallization and Related Annealing Phenomena , Pergamon Press...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240265
EISBN: 978-1-62708-251-8
... intergranular fracture, as illustrated in Fig. 15.11 . Rupture, which is characterized by a reduction of area approaching 100%, occurs at high stresses and high temperatures. This type of failure can occur during hot working at high strain rates. Dynamic recovery and recrystallization are usually associated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410233
EISBN: 978-1-62708-265-5
... , Pickering F.B. , Ed., Vol 7 , Mater. Sci. Technol. , VCH , Weinheim, Germany , 1992 , p 41 – 94 12.9 Yang D.Z. , Brown E.L. , Matlock D.K. , and Krauss G. , Ferrite Recrystallization and Austenite Formation in Cold Rolled Intercritically Annealed Steel , Metall. Trans...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
... Hot working normally takes place at approximately 70 to 80% of the absolute melting temperature. During hot working, the strain-hardened and distorted grain structure produced by deformation is rapidly eliminated by the formation of new strain-free grains as a result of recrystallization. Dynamic...
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
... growth during soaking and during dynamic recrystallization of austenite at the high initial rolling temperatures. Niobium is the most effective element in modifying the recrystallization behavior of austenite during hot rolling in the range of 1040 to 815 °C (1900 to 1500 °F). The presence of niobium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... the recovery process of repolygonization, and others soften by dynamic recrystallization. Thus, there is a distinct correspondence between hot working and viscous creep deformation. In this case study, several time elements (all less than 60 s) were established in subsequent trials where all...