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X-Ray Fractography of Stress Corrosion Cracking in Aisi 4340 Steel Under Controlled Electrode potential

Published online by Cambridge University Press:  06 March 2019

Masaaki Tsuda ,
Yukio Hirose ,
Zenjiro Yajima  and
Keisuke Tanaka
Masaaki Tsuda
Affiliation:
Department of Material Science, Kanazawa University 1–1 Marunouchi, Kanazawa 920, Japan
Yukio Hirose
Affiliation:
Department of Material Science, Kanazawa University 1–1 Marunouchi, Kanazawa 920, Japan
Zenjiro Yajima
Affiliation:
Department of Mechanical Engineering, Kanazawa Institute of Technology, 7–1 Oogigaoka, Nonoichi, Kanazawa 921, Japan
Keisuke Tanaka
Affiliation:
Department of Engineering Science, Kyoto University Yoshida-hommachi, Sakyo–ku, Kyoto 606, Japan
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Extract

The residual stress left on the fracture surface is one of the important parameters in X-ray fractography and has been used to analyze fracture mechanisms in fracture toughness and fatigue tests especially of high strength steels.

In the present paper, the distribution of residual stress beneath the fracture surface made by stress corrosion cracking was measured by the X-ray diffraction method. Stress corrosion cracking tests were conducted by using compact tension specimens of 200°C tempered AISI steel in 3.5% NaCl solution environment under various electrode potentials. The effect of electrode potential on the growth kinetics of stress corrosion cracking is discussed on the basis of residual stress distribution.

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. 269 - 276
Copyright
Copyright © International Centre for Diffraction Data 1987

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References

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