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grain coarsening

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Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006285
EISBN: 978-1-62708-169-6
... parts and semiproducts. This article discusses the processes involved in annealing, namely, recovery, recrystallization, and grain coarsening. It lists the heat treatment conditions of processed aluminum alloys. It provides information on the types of heat treatment, which include preheating, full...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006487
EISBN: 978-1-62708-207-5
..., and grain coarsening. It summarizes some of the annealing treatments used in conjunction with fabrication by metal working, including preheating, interannealing, self-annealing, stabilization, and stoving. The article concludes with information on the key process parameters affecting the final properties...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003743
EISBN: 978-1-62708-177-1
.... The article reviews the classification of grain growth according to the growth behavior of grains, namely, normal or continuous grain growth and abnormal or discontinuous grain growth. The latter has also been termed exaggerated grain growth, coarsening, or secondary recrystallization. References...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001341
EISBN: 978-1-62708-173-3
... Metallurgy , John Wiley & Sons , 1987 15. Narita K. , Physical Chemistry of the Groups IVa (Ti, Zr), Va (V, Nb, Ta) and the Rare Earth Elements in Steel , Trans. ISIJ , Vol 15 , 1975 , p 145 – 152 16. Amin R.K. and Pickering F.B. , Austenite Grain Coarsening...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005613
EISBN: 978-1-62708-174-0
... , to their size, r (i.e., f / r ). At regions near the fusion line, where the temperature is well above the dissolution temperature of carbonitrides ( T d ), profound grain growth can occur as a result of dissolution and/or coarsening of precipitates and subsequent reduction in particle pinning effect...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005786
EISBN: 978-1-62708-165-8
... of the Alloying Elements in Steel , American Society for Metals , 1939 , p 137 24. Alogab K.A. , Matlock D.K. , Speer J.G. , and Kleebe H.J. , The Influence of Niobium Microalloying on Austenite Grain Coarsening Behavior of Ti-Modified SAE 8620 Steel , ISIJ Int. , Vol 47 , 2007...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003995
EISBN: 978-1-62708-185-6
... at which transformation of ferrite to austenite is completed on heating; T Ar 1 , temperature at which transformation to ferrite or to ferrite plus cementite is completed on cooling; T Ar 3 , temperature at which transformation of austenite to ferrite begins on cooling; T GC , grain-coarsening...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001037
EISBN: 978-1-62708-161-0
..., subcritical heat-affected zone; ICHAZ, intercritical heat-affected zone; FGHAZ, fine-grain heat-affected zone; SRGCHAZ, subcritically reheated grain-coarsened heat-affected zone; IRGCHAZ, intercritically reheated grain-coarsened heat-affected zone. (b) Plan view of a polished weld section showing a method...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004027
EISBN: 978-1-62708-185-6
...” recrystallization, for which new nucleation is not required. This may partially or completely replace classical recrystallization in postdynamic recrystallization. When recrystallization is complete, the grain-boundary energy provides the driving pressure for normal grain coarsening (growth), which can...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001422
EISBN: 978-1-62708-173-3
... that the material be in a grain-coarsened condition. Applying a high-energy-input welding process to a coarse-grain material can frequently result in HAZ micro- or macrofissures. The addition of elements such as boron and zirconium to enhance stress rupture life and ductility has been shown to increase fissuring...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005994
EISBN: 978-1-62708-168-9
... made the production of reliable microalloyed steel products possible ( Ref 15 , 16 ). The advancement of induction heating technology has also made possible a reduction of detrimental grain coarsening during heating to and holding at the forging temperature. Figure 2 shows the comparison of thermal...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005599
EISBN: 978-1-62708-174-0
... Isokinetic Solution Case Study: Coarsening of TiN during Steel Welding General Methodology Recrystallization Kinetics Case Study: Recrystallization during Welding of Aluminum Alloys Grain Growth Kinetics Dimensionless Evolution Equation Grain Growth in Welding of Structural Steels...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006254
EISBN: 978-1-62708-169-6
.... The HPDC alloys often attain grain sizes below 10 µm. Heat treatments carried out at high temperatures, such as solution treatment (T4), can cause grain coarsening and thus alter mechanical properties. Relationship between Hardness and Mechanical Properties Published data on the effects of heat...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005229
EISBN: 978-1-62708-187-0
... after homogenization ensures better workability. Homogenization literally refers to equalization of solute concentration in the single phase; however, it is often accompanied by one or several of the following diffusion-related processes: grain coarsening or recrystallization, precipitation...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.9781627081610
EISBN: 978-1-62708-161-0
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001022
EISBN: 978-1-62708-161-0
... °F), then hot worked to 1120 °C (2050 °F). Grain growth and precipitate coarsening are rapid at these temperatures and are exacerbated by the mass effect of forgings compared with strip. Attempts to forge at temperatures low enough to optimize as-forged steel properties result in decreased equipment...
Book Chapter

Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001377
EISBN: 978-1-62708-173-3
..., embrittlement, sensitization, and excessive grain coarsening. This implies an understanding of the unique metallurgical problems of the alloy to be welded. Forge welding requires the application of pressure by means of either a hammer (hammer welding), rolls (roll welding), or dies (die welding). Joint...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005215
EISBN: 978-1-62708-187-0
... a temperature within the freezing range is presented in Fig. 6 (which is discussed in a later section) ( Ref 10 , 37 ). The kinetics of solute redistribution processes can be examined more effectively by interrupted solidification and/or in situ solidification. Because of dendrite (or grain) coarsening...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001103
EISBN: 978-1-62708-162-7
... forms. Fig. 2 Schematic showing typical process operations used in the production of MA ODS products As noted previously, the final properties of MA ODS alloys are dependent on the grain structure as well as the presence of the fine dispersoid. In most products, a grain-coarsening anneal...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005948
EISBN: 978-1-62708-168-9
... refinement by thermal cycling of 18Ni (300) Maraging steel. (a) Original specimen grain coarsened at 1150 °C (2100 °F) for 1 h and then water quenched. ASTM grain size: 1.5. (b) Specimen (a) grain refined by heating to 1025 °C (1880 °F) for 10 min and then water quenched. ASTM grain size: 4. (c) Specimen (b...