1-20 of 504 Search Results for

Equiaxed grains

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 December 2004
Fig. 14 High-purity tin. The structure consists of large, equiaxed grains that show no deformation from polishing. Etchant 1, Table 1 . 150× More
Image
Published: 01 December 2004
Fig. 8 Coarse, equiaxed grains produced by dendritic growth in an undercooled melt of pure metal More
Image
Published: 01 December 2004
Fig. 12 Macrostructure of an Al-12.7Si alloy showing equiaxed grains and dendrites. Etchant: modified Poulton reagent (60% HCl, 30% HNO 3 , 5% HF, 5% H 2 O). Original magnification 5× More
Image
Published: 01 January 1997
Fig. 21 Photomicrographs comparing (a) the fully recrystallized, equiaxed grains in undoped tungsten wire to (b) the “interlocked” recrystallized grain structure of doped tungsten wire and to (c) the recrystallized structure of mixed grain size due to ThO 2 particles (black dots) in thoriated More
Image
Published: 01 November 2010
Fig. 5 (a, b) Sedimentation of growing equiaxed grains recorded by synchrotron x-ray radiography in columnar-to-equiaxed transition following a jump in pulling rate from 1.5 to 15 μm/s at t 0 . Directional solidification of a refined Al-3.5wt%Ni alloy, G = 30 K/cm ( Ref 14 ). (c More
Image
Published: 01 December 2004
Fig. 8 Equiaxed grain accumulation on a steel sieve inserted in a solidifying Al-2%Cu alloy. Source: Ref 3 More
Image
Published: 01 November 2010
Fig. 7 Direct modeling of solidification of a single equiaxed grain using the cellular automaton (CA) method coupled with the finite-element (FE) method is a refinement of the indirect modeling approach ( Fig. 5 ). Integration over time on the geometrical CA grid of kinetics laws More
Image
Published: 01 November 2010
Fig. 4 Schematic illustration of the columnar-to-equiaxed transition. Grains nucleating in the undercooled region ahead of the columnar front, with a nucleation temperature ( T N ) that is comprised between the columnar tip temperature ( T C ) and the liquidus temperature ( T L ), can block More
Image
Published: 15 December 2019
Fig. 23 Equiaxed alpha grains containing annealing twins in annealed (at 750°C, or 1380 °F) wrought aluminum brass (Cu-22%Zn-2%Al) revealed by using potassium-dichromate etch, a grain-contrast etchant that responds well to polarized light More
Image
Published: 01 December 2004
Fig. 27 Computer processed image of the macrostructure of a Ti-6Al-4V ingot. (a) Longitudinal section with coarse equiaxed grains in the center (light), columnar grains (gray), and fine equiaxed grains on the surface. (b) Cross section with reverse coloration More
Image
Published: 01 December 2004
Fig. 24 Copper cooling plates. (a) Transverse section of candidate material 1, hot rolled copper slab. Etched in FeCl 3 /HCl in water ( Table 5 , No. 3). Uniform, equiaxed grain size. (b) Transverse section of candidate material 2, continuously cast copper slab with integral cooling passages More
Image
Published: 01 December 2004
Fig. 16 Longitudinal view (lt plane) of an AZ31B-F extrusion. (a) Microstructure in a relatively thick section (∼20 mm) showing a partially recrystallized structure of equiaxed grain with some manganese-aluminum particles (dark). Large differences in grain size exist among individual grains More
Image
Published: 01 December 2004
Fig. 26 Microstructural evolution of chipped AZ91D magnesium feedstock during melting. (a) Macroscopic view of chips removed from a crucible. (b) Equiaxed grain structure in bonded chips. (c) Initial chip melting with an equiaxed grain structure. (d) Spheroidal morphology containing 22 More
Image
Published: 01 December 2004
Fig. 27 Microstructural evolution of dendritic AZ91D magnesium feedstock during melting. (a) Macroscopic view of pellets removed from a crucible. (b) Equiaxed grain structure in bonded pellets. (c) Equiaxed grain structure during initial melting. (d) Spheroidal morphology containing 26% solid More
Image
Published: 01 November 2010
Fig. 6 (a) Longitudinal cross section of an aluminum-base alloy (height = 120mm) cast in a steel mold ( Ref 15 ). Numerical simulation of grain structure in a cast Al-7wt%Si alloy ( Ref 16 ) when grain movement is (b) included and (c) impeded. Equiaxed growth of refined Al-4wt%Cu alloy ( Ref More
Image
Published: 01 June 2016
Fig. 12 Microstructures of near-alpha alloy Ti-8Al-1Mo-1V after forging with different starting temperatures. (a) Equiaxed alpha grains (light) in a matrix of alpha and beta (dark). (b) Equiaxed grains of primary alpha (light) in a matrix of transformed beta (dark) containing fine acicular More
Image
Published: 01 January 1990
Fig. 12 Microstructures of near-alpha alloy Ti-8Al-1Mo-1V after forging with different starting temperatures. (a) Equiaxed alpha grains (light) in a matrix of alpha and beta (dark). (b) Equiaxed grains of primary alpha (light) in a matrix of transformed beta (dark) containing fine acicular More
Image
Published: 01 January 1997
Fig. 12 Microstructures of near-α alloy Ti-8Al-1Mo-1V after forging with different starting temperatures. (a) Equiaxed α grains (light) in a matrix of α and β (dark). (b) Equiaxed grains of primary α (light) in a matrix of transformed β (dark) containing fine acicular α. (c) Transformed β More
Image
Published: 01 January 1987
Fig. 29 Schematic illustrating decohesive rupture along grain boundaries. (a) Decohesion along grain boundaries of equiaxed grains. (b) Decohesion through a weak grain-boundary phase. (c) Decohesion along grain boundaries of elongated grains More
Image
Published: 01 November 2010
Polytechnique Fédérale de Lausanne. (b) Equiaxed grains growing in the melt during cooling of an Al-4wt%Cu alloy. Observed by synchrotron x-ray radiography at the European Synchrotron Radiation Facility (Institut Matériaux Microélectronique Nanosciences de Provence, Univ. Paul Cézanne). Equiaxed crystals have More