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Ni3Al Thin Foil by Cold Rolling

Published online by Cambridge University Press:  21 March 2011

Toshiyuki Hirano ,
Masahiko Demura ,
Kyosuke Kishida  and
Yozo Suga
Toshiyuki Hirano
Affiliation:
National Research Institute for Metals, 1–2–1 Sengen, Tsukuba, Ibaraki 305–0047, Japan
Masahiko Demura
Affiliation:
National Research Institute for Metals, 1–2–1 Sengen, Tsukuba, Ibaraki 305–0047, Japan
Kyosuke Kishida
Affiliation:
National Research Institute for Metals, 1–2–1 Sengen, Tsukuba, Ibaraki 305–0047, Japan
Yozo Suga
Affiliation:
Nippon Cross Rolling Co. 697 Mobara, Chiba 297–0026, Japan
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Abstract

Thin foils of stoichiometric Ni3Al below 100 μm in thickness were successfully fabricated by cold rolling of the sheets which were sectioned from directionally solidified ingots. Maximum rolling reduction in thickness amounted to 96%, irrespective of the initial orientation or the existence of columnar grains in the starting sheets. The as-rolled foils were characterized in terms of microstructures, textures and dislocation structures. The deformation microstructures were of a dual banded structure composed of two different {110} textures in the case of <001> rolling direction, while a rather homogeneous structure with a single {110} texture resulted in the case of <112> rolling direction. TEM observation revealed homogenous dislocation structures in either case without cell formation, accompanied by very fine grained-regions at higher reduction.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 646 , 2000 , N5.12.1
Copyright
Copyright © Materials Research Society 2001

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References

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