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3. 3) E. Takahashi and K. Iwai: Relation between Occurrence of the Transverse Cracks and Parameters of Residual Stress and Diffusible Hydrogen Concentration -Prevention of the Transverse Cracks in Heavy Section Butt Weldments of 2 1/4Cr-1Mo Steel through Low Temperature Postweld Heat Treatment (Report 1)-, Journal of Japan Welding Society, Vol.48, No.10 (1979), p.865-872.
4. 4) E. Takahashi, K. Iwai and T. Horitsuji: Correlation between Hydrogen Concentration and Practical Welding Condition -Prevention of the Transverse Cracks in Heavy Section Butt Weldments of 2 1/4Cr-1Mo Steel through Low Temperature Postweld Heat Treatment (Report 2)-, Journal of Japan Welding Society, Vol.49, No.2 (1980), p.129-136.
5. 5) E. Takahashi, K. Iwai and T. Horitsuji: Correlation between Reduction of Hydrogen Concentration through LTPWHT and Its Treating Conditions -Prevention of the Transverse Cracks in Heavy Section Butt Weldments of 2 1/4Cr-1Mo Steel through Low Temperature Postweld Heat Treatment (Report 3)-, Journal of Japan Welding Society, Vol.49, No.4 (1980), p.242-247.