Grain-Boundary Segregation of Phosphorus and Inter-Granular Fracture Behavior under Low Tensile Stresses

Yu Dong Fu; Qing Fen Li; Wei Xin Sun

doi:10.4028/www.scientific.net/KEM.525-526.273

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 525-526Grain-Boundary Segregation of Phosphorus and...

Grain-Boundary Segregation of Phosphorus and Inter-Granular Fracture Behavior under Low Tensile Stresses

Abstract:

The present work is an effort to provide experimental results focusing on segregation behavior of phosphorus at grain boundary and the intergranular fracture behavio under low tensile stresses. AES (Auger electron spectroscopy) experiments and dynamic analyses on the non-equilibrium grain-boundary segregation (NGS) of phosphorus and the SEM photos of intergranular fracture in Auger specimens in 12Cr1MoV steel were carried out in this paper. The variation of phosphorus segregation level in grain boundary under different low tensile stresses and at different temperature were obtained. Results show that NGS of phosphorus occurred in the experimental steel while subjected to low tensile stresses. Maximum values of phosphorus segregation level were obtained at the critical times. SEM photos of intergranular fracture in Auger specimens of the test steel show that the intergranular fracture rate increased with increasing concentration of phosphorus. The intergranular fracture behavior is accordant with the segregation behavior of phosphorus at grain boundary.

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Periodical:

Key Engineering Materials (Volumes 525-526)

Pages:

273-276

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.525-526.273

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Online since:

November 2012

Authors:

Yu Dong Fu, Qing Fen Li, Wei Xin Sun

Keywords:

Intergranular Fracture, Low Tensile Stress, Non-Equilibrium Grain-Boundary Segregation (NGS), Phosphorus

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References

[1] D. McLean, Grain Boundaries in Metals (Oxford University Press, Amen House, London; 1957).

Google Scholar

[2] M. Guttmann, Surf. Sci., 53 (1975) 213.

Google Scholar

[3] T. D. Xu, J. Mater Sci., 22 (1987) 337.

Google Scholar

[4] T.D. Xu, Acta Metall. 1989: 37: 2499.

Google Scholar

[5] T. D. Xu, Scripta Materialia, 37 (1997) 1643.

Google Scholar

[6] T. D. Xu, Progress in Materials Science, 49 (2004) 109.

Google Scholar

[7] Shinoda T, Nakamura T. Shinoda T, ed. Acta Metal. Vol. 29 (1981), P 1631.

Google Scholar

[8] L.E. Davis, N.C. McDonald, P.W. Palmberg, G.E. Riach and R.E. Weber. Handbook of Auger Electron Spectroscopy. 2nd edn. Minnesota: Phys. Electronics Industries Press, (1976).

Google Scholar

[9] Eds. D. Briggs and M.P. Seah, Practical Surface Analysis. Chichester: Wiley Press, (1990).

Google Scholar