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X-Ray Diffraction Observation of Fracture Surfaces of Ductile Cast Iron

Published online by Cambridge University Press:  06 March 2019

Zenjiro Yajima
Affiliation:
Faculty of Engineering, Kanazawa Institute of Technology, 7-1 Oogigaoka, Nonoichi, Kanazawa 921, Japan
Yukio Hirose
Affiliation:
Faculty of Education* Kanazawa University, 1-1 Marunouchi, Kanazawa 920, Japan
Keisuke Tanaka
Affiliation:
Department of Mechanical Engineering and Mechanics Lehigh University, Bethlehem, Pennsylvania, U.S.A.
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Extract

X-ray diffraction observation of metal fractures provides fracture analysists with useful information on the mechanisms and mechanical conditions of fracturing. This method is called “X-ray fractography” and has been developed especially in Japan as a new engineering tool for fracture analysis.

In the present paper, X-ray fractography is applied to fracture surfaces of ductile cast iron (JIS FCD 60) which are widely used as machine parts. The fracture toughness tests were conducted at ambient and low temperatures by using compact tension (CT) specimens with blunt notches and three-point bending (TPB) specimens with fatigue pre-cracks. The line broadening of X-ray diffraction profiles was measured on and beneath fracture surfaces of fracture toughness specimens.

Type
V. X-Ray Stress Determination, Position Sensitive Detectors, Fatigue and Fracture Characterization
Copyright
Copyright © International Centre for Diffraction Data 1982

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References

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