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grain coarsening

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Published: 01 January 1990
Fig. 13(a) Austenite grain coarsening during reheating and after hot rolling for a holding time of 30 min. Titanium contents were between 0.008 and 0.022% Ti. Source: Ref 25 More
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Published: 01 January 1990
Fig. 10 Grain-coarsening behavior of a modified 9Cr-1Mo steel (9Cr-1Mo steel with 0.06 to 0.10% Nb and 0.18 to 0.25% V). Source: Ref 7 More
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Published: 31 October 2011
Fig. 13 Effects of various microalloying additions on the grain-coarsening temperature of austenite. Grain-coarsening temperatures depend on the microalloying level, nitrogen and/or carbon contents, and size of the precipitates. Titanium is the most efficient microalloying element for grain More
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Published: 01 January 2005
Fig. 7 Austenite grain coarsening characteristics in steels containing various microalloying additions. Source: Ref 11 More
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Published: 01 January 1990
Fig. 12 Crack tip opening displacement versus the percent of grain-coarsened regions for several structural steels. Source: Ref 27 More
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Published: 01 November 1995
Fig. 11 Schematic diagram showing grain growth, densification, and coarsening kinetics vs. reciprocal temperature. Temperature ranges suitable for rate-controlled sintering and fast firing are indicated. More
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Published: 01 January 2003
Fig. 12 Coarsening of grain size in a ferritic stainless steel by laser melting More
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
... Abstract Annealing is an essential treatment in the fabrication of metal 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...
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
... the annealing of worked structures in terms of recovery, recrystallization, 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...
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Published: 01 January 1990
Fig. 9 Regions of the heat-affected zone. (a) The HAZ regions in a single-bevel multipass weld. SCHAZ, subcritical heat-affected zone; ICHAZ, intercritical heat-affected zone; FGHAZ, fine-grain heat-affected zone; SRGCHAZ, subcritically reheated grain-coarsened heat-affected zone; IRGCHAZ More
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Published: 01 January 1996
Fig. 23 Schematic diagram of the variety of microstructures that can be obtained in the HAZs of multipass welds. GR, grain refined; IC, intercritical; SC, subcritical; ICGC, intercritical grain coarsened; SCGC, subcritical grain coarsened More
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Published: 01 January 2005
of austenite to ferrite begins on cooling; T GC , grain-coarsening temperature; T rs , recrystallization stop temperature. T GC is defined as the temperature above which grain coarsening by secondary recrystallization commences and refers to the temperature above which the undissolved precipitates More
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Published: 01 October 2014
Fig. 9 Austenite microstructure 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 More
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Published: 15 June 2020
Fig. 14 Micrographs showing binder jet copper (a) after sintering and (b) after hot isostatic pressing (HIP). Some grain coarsening is evident after HIP. Source: Ref 43 More
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Published: 15 June 2020
Fig. 5 Microstructures of Cu-1.3Cr fabricated with laser powder-bed fusion. (a) As-fabricated condition. (b) Limited grain coarsening after direct aging at 450 °C (840 °F). Source: Ref 61 More
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
... HAZ of a Single-Pass Weld Peak Temperature-Cooling Time Diagrams The gradient in microstructure than can be obtained in a single-pass weld is shown in Fig. 3 . High peak temperatures in the HAZ just adjacent to the fusion line cause coarsening of the austenite (γ) grains, and this in turn...
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
..., as illustrated in Fig. 4 for a carbon steel. Very high peak temperatures ( T p ) in the regions immediately adjacent to the fusion line cause coarsening of the austenite (γ) grains, and this in turn increases the hardenability of this region relative to the other subzones. The slower the heating rate...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0005547
EISBN: 978-1-62708-161-0
... and Space K-BOP Kawasaki basic oxygen process G modulus of rigidity kg kilogram Administration gal gallon NDT nil ductility temperature GAR grain aspect ratio km kilometer NDTT nil ductility transition temperature GC grain-coarsened KMS Kloeckner metallurgy scrap nm nanometer GCHAZ grain-coarsened heat...
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
... to control hardenability, because finer austenite is usually preferred to refine the final microstructure, enhancing strength and toughness. Due to grain growth or grain coarsening, the austenite grain size is expected to increase with time or temperature, as shown for pure iron in Fig. 12 . In alloys...
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
... or discontinuous grain growth. The latter has also been termed exaggerated grain growth, coarsening, or secondary recrystallization. annealing coarsening cold worked metal grain growth recrystallization solidification RECOVERY, RECRYSTALLIZATION, AND GRAIN GROWTH are the stages that a cold-worked...