The interface damage function (IDF) defining the fraction of damage on crystallite
interfaces in a polycrystalline material1 is extended to include functional dependence
upon individual crystallite lattice orientation of grains composing a boundary. The
material studied was OFHC copper crept at 10 MPa and 0.6 Tm. Major peaks in the
IDF were found through a series of projections of the eight-dimensional domain of the
function. A maximum value of 0.95 was found for the IDF.

David P. Field

Brent L. Adams

Junwu Zhao

Analysis of Grain Boundary Cavitation Damage in Copper

CuMn-specimens were observed by HVEM to obtain
information about the recrystallization process influenced
by foreign atoms. Up to a concentration of 10 at.&#x25; Mn the
SFE of this system does not change. Along the grain
boundaries the orientations of the recrystallized grains
and of the deformation microstructure were determined to
establish the local orientation relationships. The grain
orientations can be described by twinning of the deformation
microstructure. Only 20-30&#xB0;&#x3C;111&#x3E; and 40-50&#xB0;&#x3C;221&#x3E;
orientation relationships were found. Known from growth
selection experiments these orientation relationships are
already the final ones of the recrystallization texture.
Because of the SFE and the large misfit between Cu and Mn 
these orientation relationships were formed rapidly after
nucleation. Thus, the orientation formation process is
finished after several &#x3BC;m of growth.

U. Klement

P. Haasen

P.-J. Wilbrandt

High-Voltage Electron Microscopy of the Early Stages of Recrystallization in CuMn

N. Ortiz

A. A. Pochettino

 J. L. Lebrun

G. Maeder

X-Ray Elastic Constants in Textured Titaniun Sheets and Bars

F. Heinicke

H.-G. Brokmew

M. Dahms

H. J. Bunge

J. Pannetier

C. Ritter

H. de Wall

Textures of Paragneisses From the KTB Drilling Site, Ne Bavaria
(FRG)

Polycrystalline thin films, deposited from a vapour
phase, often show a columnar morphology. We present
computer simulations of a 2D model of the polycrystalline
growth process. The model consists of randomly oriented
squares, growing from a line. We find, that the characteristic
length scale <mml:math id="E1" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mo>&#x003C;</mml:mo><mml:mi>&#x0394;</mml:mi><mml:mi>x</mml:mi><mml:mo>&#x003E;</mml:mo></mml:mrow></mml:math> of the growing surface &#x28;average edge length
projected on the substrate&#x29; diverges as a function of time
according to a power law <mml:math id="E2" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mo>&#x003C;</mml:mo><mml:mi>x</mml:mi><mml:mo>&#x003E;</mml:mo><mml:mo>&#x223C;</mml:mo><mml:msup><mml:mi>t</mml:mi><mml:mi>p</mml:mi></mml:msup></mml:mrow></mml:math>, with <mml:math id="E3" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>p</mml:mi><mml:mo>&#x2248;</mml:mo><mml:mn>0.52</mml:mn></mml:mrow></mml:math>.

A. J. Dammers

S. Radelaar

Two-Dimensional Computer Modelling of Polycrystalline Film Growth

It is important to control the recrystallised texture in the aluminium
alloy used for beverage cans. A model has previously been proposed
which explains the recrystallised texture of the hot bands as a competition
between grains nucleated either in transition bands or around coarse
particles. Present work confirms that most recrystallised grains are nucleated
around coarse particles and that these do not have any preferred
orientation. Possibly the smaller of the coarse particles have a weak tendency
to nucleate grains in a retained rolling orientation. Other recrystallised
grains not associated with particles are preferably oriented on
the (100)-fibre parallel to the rolling direction including the important
cube and Goss orientations.A light cold rolling of the hot bands prior to annealing can increase
the final cube texture, but only if the hot band is slightly recrystallised.
This is explained by a destruction of most small recrystallised
grains while a few selected grains are conserved. Recrystallised grains in
the vicinity of coarse particles are prone to destruction while grains
oriented in the actual cube position for the applied cold rolling reduction
are especially apt for conservation.

A. Oscarsson

The Effect of Nucleation Sites for Recrystallisation on Annealing
Texture and Earing in Aluminium

K. L&#xFC;cke

M. H&#xF6;lscher

Rolling and Recrystallization Textures of BCC Steels

Michel Dechamps

Influence of Grain Boundary Specialness Character on Grain Texture and Boundary
Texture in Nickel Oxide Scales

Copper single crystals of the <mml:math id="E1" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>348</mml:mn></mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mrow><mml:mo>[</mml:mo><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mn>11</mml:mn></mml:mrow><mml:mo stretchy="true">&#x00AF;</mml:mo></mml:mover><mml:mo>,</mml:mo><mml:mover accent="true"><mml:mn>4</mml:mn><mml:mo>&#x00AF;</mml:mo></mml:mover><mml:mo>,</mml:mo><mml:mn>6</mml:mn></mml:mrow><mml:mo>]</mml:mo></mml:mrow></mml:mrow></mml:math> orientation were cold&#x2013;rolled
up to 99&#x25; under two series of L/d condition. The fornmtion of
nucleation sites of &#x28;001&#x29;&#x5B;100&#x5D; orientation and the development of cube
texture as well as their correlation were investigated. The slip-rotation
from a stable orientation towards &#x28;001&#x29;&#x5B;100&#x5D; was discussed in terms of
deformtion inhomogeneity.

T. Kamijo

A. Fujiwara

H. Fukutomi

E. Aernoudt

Formation of Nucleation Sites of Cube Texture Due to Inhomogeneous Deformation During Rolling
in Copper Single Crystals

F. Barlat

S. Panchanadeeswaran

O. Richmond

Prediction of Earing in Cup Drawing FCC Materials

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Texture, Stress, and Microstructure

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