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Direct Observation of Diffraction Arcs from Nanoscale Precipitates in Steels by Highly Brilliant and Focused Synchrotron Radiation Beam and Imaging Plate

Published online by Cambridge University Press:  21 February 2011

Yasuo Takagi ,
Yoshitaka Okitsu  and
Toshiyasu Ukena
Yasuo Takagi
Affiliation:
R & D Laboratories for Advanced Materials and Technology, Nippon Steel Corp., Kawasaki, Kanagawa 211, JAPAN
Yoshitaka Okitsu
Affiliation:
Hirohata R & D Laboratories, Nippon Steel Corp., Himeji, Hyogo 671-11, JAPAN
Toshiyasu Ukena
Affiliation:
Hirohata R & D Laboratories, Nippon Steel Corp., Himeji, Hyogo 671-11, JAPAN
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Abstract

Direct observation of diffraction arcs by X-ray from nanoscale precipitates in steels has become possible for the first time by using a highly brilliant and focused synchrotron radiation beam at BL3A of Photon Factory, and also by using an “imaging plate”, a two dimensional X-ray detector which has a wide dynamic range and high sensitivity. For examples, most of the diffraction arcs from ε-Cu precipitates (∼200 Å in diameter and ∼1 at. % in concentration) in Cu-added steels were observed. The method can apply to nondestructive and in-situ observation of creation and growth processes of the precipitates which has close relationships to various physical properties of the matrix steels.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 332: Symposium U – Determining Nanoscale Physical Properties of Materials by Microscopy and Spectroscopy , 1994 , 255
Copyright
Copyright © Materials Research Society 1994

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References

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