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Mechanical Properties of Cr5Si3 with the D8m Structure

Published online by Cambridge University Press:  04 February 2011

Yuji Ochiai ,
Kyosuke Kishida ,
Katsushi Tanaka  and
Haruyuki Inui
Yuji Ochiai
Affiliation:
Department of Materials Science and Engineering, Kyoto University Sakyo-ku, Kyoto 606-8501, Japan
Kyosuke Kishida
Affiliation:
Department of Materials Science and Engineering, Kyoto University Sakyo-ku, Kyoto 606-8501, Japan
Katsushi Tanaka
Affiliation:
Department of Mechanical Engineering, Kobe University 1-1 Rokkoudai-cho, Nada-ku, Kobe 657-8501, Japan
Haruyuki Inui
Affiliation:
Department of Materials Science and Engineering, Kyoto University Sakyo-ku, Kyoto 606-8501, Japan
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Abstract

Elastic properties, thermal expansion and deformation behavior of Cr5Si3 with the D8m structure were investigated using single crystals. From the values of Cauchy pressures as well as the ratio of the polycrystalline bulk modulus (B) to shear moduls (G) estimated from single-crystal elastic constants (cij), deformation behavior of Cr5Si3 is expected to be relatively brittle compared to Mo5Si3 with the same crystal structure. However, plastic deformation of Cr5Si3 is confirmed above 900 ~ 1100 °C depending on the loading axis orientations.

Keywords

elastic propertiesstress/strain relationshiptransmission electron microscopy (TEM)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1295: Symposium N – Intermetallic-Based Alloys for Structural and Functional Applications , 2011 , mrsf10-1295-n05-21
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

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