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X-Ray Fractographic Study on Fatigue Fracture Surface of Ductile Cast Iron: Quantitative Analysis of Retained Austenite by X-Ray Method

  • Akira Suzuki (a1), Yoichi Kishi (a1), Zenjiro Yajima (a2) and Yukio Hirose (a3)

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Austempered ductile cast iron (ADI) has composite microstructures, which are martensite/retained austenite structures. ADI has very large toughness compared to other ductile cast irons. After fracture, the retained austenite near the fracture surface will be transformed to martensite. In the present study, X-ray fractography is applied to fatigue fracture surface of ADI. The fatigue tests were carried out on compact tension (CT) specimens. The volume fraction of retained austenite was quantitatively measured on and beneath fatigue fracture surfaces. The plastic strain on the fracture surface was estimated from measuring the line broadening of X-ray diffraction profiles. The depth of the plastic zone left on fracture surface was evaluated from the distributions of the volume fraction of retained austenite. The results are discussed on the basis of fracture mechanics.

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1. M., Kikukawa, M., Jono, K., Tanaka, and M., Takatani, Measurement of Fatigue Crack Propagation and Crack Closure at Low Stress Intensity Level by Unloading Elastic Compliance Method, Journal of the Society of Materials Science, Japan 25: 899, (1976)
2. A., Suzuki, A., Tanji, Z., Yajima, Y., Hirose, and K., Tanaka, X-Ray Diffraction Study of Fracture Surface Made by Fracture Toughness Tests of Blunt Notched CT Specimen of Aluminum Alloy, Advances in X-Ray Analysis 30: 537, (1987)
3. Y., Hirose, Z., Yajima, and T., Mura, X-Ray Fractography on Fatigue Fracture Surfaces of AISI 4340 Steel, Advances in X-Ray Analysis 29: 63, (1986)
4. Z., Yajima, Y., Hirose, and K., Tanaka, X-Ray Fractography of Fatigue Fracture of Low-Alloy Steel in Air and in 3.5% NaCl Solution, Journal of the Society of Materials Science, Japan 35: 725, (1986)
5. K., Tanaka, K., Fujiyama, and K., Nakamura, Fracture Toughness and X-Ray Diffraction Observation of Fracture Surface of Structual Low—Carbon Steel, Journal of the Society of Materials Scknce, Japan 29: 62, (1980)
6. T., Goto, A Study on the Application of X-Ray Diffraction Technique to Failure Analysis of Metal Components, Proc.1973 Symp.Mech.Beh.Mat, Kyoto, 265(1973).
7. Y., Kishi, Y., Hirose, Z., Yajima, and K., Tanaka, X-Ray Study on the Fatigue Fracture Surface of Austempered Ductile Cast Iron, Advances in X-Ray Analysis 35: 503, (1992),

X-Ray Fractographic Study on Fatigue Fracture Surface of Ductile Cast Iron: Quantitative Analysis of Retained Austenite by X-Ray Method

  • Akira Suzuki (a1), Yoichi Kishi (a1), Zenjiro Yajima (a2) and Yukio Hirose (a3)

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