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Pre-Cracking Technique and its Application to X-Ray Fractography of Alumina Ceramics

Published online by Cambridge University Press:  06 March 2019

Tadao Mishima ,
Hiroyuki Yoshida ,
Yukio Hirose  and
Keisuke Tanaka
Tadao Mishima
Affiliation:
Industrial Research Institute of Ishikawa Ro–1, Tomizu, Kanazawa 920, Japan
Hiroyuki Yoshida
Affiliation:
Industrial Research Institute of Ishikawa Ro–1, Tomizu, Kanazawa 920, Japan
Yukio Hirose
Affiliation:
Department of Material Science, Kanazawa University 1–1, Marunotichi, Kanazawa 920, Japan
Keisuke Tanaka
Affiliation:
Department of Engineering Science, Kyoto University Yoshida Honmachi, Sakyo–Ku, Kyoto, Japan
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Extract

X–ray fractography is a new method utilizing the X–ray diffraction technique to observe the fracture surface for the analysis of the micromechanisms and mechanics of fracture.

In the present study, X–ray fractography was applied to brittle fracture of alumina ceramics. The first part deals with our new method of pre–cracking of ceramics. Pre–cracking was introduced to a singleedge notched specimen by longitudinal compression. Then the fracture toughness tests were conducted with pre–cracked specimens as well as notched ones. The effect of the notch radius on the fracture–toughness value was determined. The second part describes the result of X–ray fractography.

Type
III. X-Ray Stress/Strain Determination, Fractography, Diffraction, Line Broadening Analysis
Information
Advances in X-Ray Analysis , Volume 31: Thirty-Sixth Annual Conference on Applications of X-ray Analysis, August 3-7, 1987 , 1987 , pp. 261 - 268
Copyright
Copyright © International Centre for Diffraction Data 1987

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References

1. Committee on X-ray Study on Mechanical Behavior of Materials, “X-Ray FracLugiraphy”, J. Soci. Mat. Sci, Jap,31, 244 (1982).Google Scholar
2. Mishima, T., Manayama, Y., Hirose, Y., and Tanaka, K., “X-Ray Fractography of Fracture Surface of Alumina Ceramics”, ICM5 Vol.II, 1283(1987)Google Scholar
3. Mishima, T., Yajima, Z., Hirose, Y., and Tanaka, K., “Pre-Cracking Technique and Its X-Ray Fractographic Application on Fracture Surtface of. Alumina” Proc. 24th X-Ray Symposium, The Society of Material Science, Japan, 202 (1987)Google Scholar
4. Mishima, T., Nanayama, Y., Hirose, Y., and Tanaka, K., “X-Ray Fractography of Fracture Surface of Alumina Ceramics”, Advances in X-Ray Analysis, 30 (1987)Google Scholar
5. Tada, H., and Irwin, G.R., The Stress Analysis of Crack Handbook, Del Research Corporation, Pennsylvania, 14 (1973)Google Scholar
6. Hirose, Y. and Tanaka, K., “X-Ray Measurement of Residual Stress near Fatigue Fracture Surfaces of High Strength Steel”, Advances in X-Ray Analysis, 29, 265 (1986).Google Scholar