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single-phase microstructure

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003085
EISBN: 978-1-62708-199-3
... commercial applications, thus improving product predictability. This article describes different equilibrium phase diagrams (unary, binary, and ternary) and microstructures, description terms, and general principles of reading alloy phase diagrams. Further, the article discusses plotting schemes; areas in a...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006277
EISBN: 978-1-62708-169-6
... example, significant advances have been made in modeling and simulation of microstructure and texture evolution during heat treatments and TMPs of titanium alloys in the last decade. Efforts in this area have been focused on recrystallization and grain-growth phenomena for single-phase (either β- or α...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005415
EISBN: 978-1-62708-196-2
... distribution in solids can cause a long-range elastic strain field that varies at the scale of the microstructure ( Ref 4 , 35 , 36 ). Even in a single-phase domain, spatial variation of the composition can also induce strains if the solute differs in atomic size from the solvent. The elastic deformation...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003248
EISBN: 978-1-62708-199-3
... particles or grains by a line of known length, N L , provides two very useful microstructural parameters. For space-filling grain structures (single phase), P L = N L , while for two-phase structures, P L = 2 N L (this may differ by one count in actual cases). Perhaps the...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005409
EISBN: 978-1-62708-196-2
...). The modeling of microstructure evolution during the TMP of titanium alloys has seen significant advances during the last decade. Some of the principal efforts in this area have focused on the following: Recrystallization and grain growth phenomena for titanium alloys consisting of single-phase...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005406
EISBN: 978-1-62708-196-2
... microstructure of the growing phases (i.e., 10 −7 –10 −4 m, e.g., dendritic or eutectic patterns) and the grain structure (i.e., 10 −4 –10 −2 m, e.g., equiaxed and columnar grains). This article concentrates on these intermediate length scales, where transport phenomena govern the spatial and temporal...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005218
EISBN: 978-1-62708-187-0
.... Successive studies with the same setup on various aluminum-copper alloys microstructure evolution during primary-phase columnar and equiaxed dendritic growth, as well as stable and destabilized eutectic growth ( Ref 25 ); destabilization of columnar dendritic fronts by local, gravity-induced...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009002
EISBN: 978-1-62708-185-6
... the elimination of dislocation substructure, the principal driving force for microstructural changes is the reduction of ary energy. At elevated temperatures, classical isothermal grain growth in single-phase alloys is usually modeled with a phenomenological expression of the following form: (Eq 15...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005950
EISBN: 978-1-62708-166-5
... microstructure, distortion, residual stress, and cracking in gears, shafts, and bearing rings. bearing rings cracking distortion electrical conductivity gears heat treatment heat treatment simulation induction hardening magnetic permeability microstructure phase transformation residual stress...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005408
EISBN: 978-1-62708-196-2
... are characterized by a coarse dendrite cell structure and a close-to-random texture. The microstructure contains coarse (10 to 50 μm) and inhomogeneously distributed constituent particles of various Al-Mn- and Al-Mn-Fe-Si phases. The sheet ingots are sawn at the ends and scalped to remove surface...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005405
EISBN: 978-1-62708-196-2
.... Moreover, small cracks with size on the order of microstructure heterogeneity (grains, phases) propagate below driving-force levels corresponding to long crack thresholds and can be arrested by interaction with strong microstructure barriers. Such microstructurally small cracks are subject to the varying...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003246
EISBN: 978-1-62708-199-3
... complex mixtures of constituents (single or combination of two phases) that are encountered in iron-base alloys and the complex structure that is observed in these microstructures. The single-phase constituents discussed in the article include austenite, ferrite, delta ferrite, cementite, various alloy...
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
... colony microstructure. In the work of Dunst and Mecking ( Ref 59 ), for example, texture evolution during the rolling of plate to a 70% thickness reduction in a single pass at 800 °C (1470 °F) was investigated for a eries of equiaxed alpha alloys with different volume fractions of the two phases...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006231
EISBN: 978-1-62708-163-4
... Abstract This article describes the liquidus plots, isothermal plots, and isopleth plots used for a hypothetical ternary phase space diagram. It discusses the single-phase boundary (SPB) line and zero-phase fraction (ZPF) line for carbon-chromium-iron isopleth. The article illustrates the Gibbs...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005209
EISBN: 978-1-62708-187-0
... Abstract One impressive example of plane front solidification (PFS) is the industrial production of large silicon single crystals, used mainly as substrates for integrated circuits. This article explores the PFS of a single phase, without taking convection into account. It discusses the solute...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003252
EISBN: 978-1-62708-199-3
... microstructural phases and compounds by their crystal structures Characterizing preferred crystallographic orientations by analysis of orientations of individual grains Secondary electron imaging of surface topography: ∼10 nm Backscattered electron imaging of atomic number contrast: ∼1 μm X-ray...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005418
EISBN: 978-1-62708-196-2
... measurement and representation of textures as well as prediction of texture evolution in single-phase materials and two-phase aggregates. self-consistent modeling continuum micromechanics single-crystal deformation texture evolution modeling single-phase materials two-phase aggregates When...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003090
EISBN: 978-1-62708-199-3
... The cementite and ferrite form as parallel plates called lamellae ( Fig. 13 ). This is essentially a composite microstructure consisting of a very hard carbide phase, cementite, and a very soft and ductile ferrite phase. A fully pearlitic microstructure is formed at the eutectoid composition of 0.78...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006223
EISBN: 978-1-62708-163-4
... of eutectic and binary phase diagrams from Gibbs free-energy curves. binary solution eutectic phase diagram Gibbs free energy Gibbs free-energy curves phase diagram single-component unary system thermodynamics IN RECENT YEARS, the application of phase diagram information obtained from...
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
... microstructures. Local variations of deformation conditions, including the strain path, strain rate, and temperature history in different regions or phases in the microstructure can be computed by finite-element (FE) or micro-finite-element (μFE) methods. These reveal the complexity of industrial processing...