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Influence of hydrogen on the tarnishing film-induced brittle cracking of brass

  • Cheng Zhang (a1), Yan Jing Su (a1), Li jie Qiao (a1) and Wu yang Chu (a1)

Abstract

The effects of hydrogen-charging on tarnishing film-induced brittle cracking of brass were studied. The tarnishing film was generated on brass samples with various hydrogen concentrations in Mattsson’s solution, then removed from the solution, dried, and subjected to a slow loading rate (loading speed = 0.5 mm/min) in air. The results indicated that hydrogen caused the film-induced brittle cracking to be more difficult to occur and a considerably high concentration of hydrogen could inhibit completely the film-induced brittle cracking. Elastic modulus test results showed that elastic modulus of the brass substrate decreased and elastic modulus of the tarnishing film increased with increasing the hydrogen concentration. Hydrogen inhibiting the film-induced cracking can be ascribed to the fact that hydrogen changed the elastic modulus of substrate and film.

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1.Newman, R.C., Shahrabi, T., and Sieradzki, K.: Film-induced cleavage of alpha-brass. Scr. Metall. 23, 71 (1989).
2.Kelly, R.G., Frost, A.J., Shahrabi, J., and Newman, R.C.: Brittle fracture of an Au/Ag alloy induced by a surface film. Metall. Trans. A 22, 531 (1991).
3.Chen, J.S., Salmeron, M., and Devine, T.M.: Intergranular vs transgranular stress-corrosion cracking of Cu 30-Au. Scr. Metall. Mater. 26, 739 (1992).
4.Devasenapathi, A., Prasad, R.C., and Raja, V.S.: Change in fracture mode and selective dissolution of austenitic stainless steels. Scr. Metall. Mater. 33, 233 (1995).
5.Saito, M., Smith, G.S., and Newman, R.C.: Testing the filminduced cleavage model of stress-corrosion cracking. Corros. Sci. 35, 411 (1993).
6.Cassagne, T.B., Flanagan, W.F., and Lichter, B.D.: On the failure mechanism of chemically embrittled Cu3Au single crystals. Metall. Trans. A 17, 703 (1986).
7.Zhang, C., Su, Y.J., Qiao, L.J., and Chu, W.Y.: Tarnishing filminduced brittle cracking of brass. J. Mater. Res. 24, 2409 (2009).
8.McLellan, R.B. and Xu, Z.R.: Hydrogen-induced vacancies in the iron lattice. Scr. Mater. 36, 1201 (1997).
9.Delafosse, D. and Magnin, T.: Hydrogen induced plasticity in stress-corrosion cracking of engineering systems. Eng. Fract. Mech. 68, 693 (2001).
10.Gao, K.W., Chu, W.Y., Li, H.L., Liu, Y.P., and Qiao, L.J.: Correspondence between hydrogen enhancing dezincification layerinduced stress and susceptibility to SCC of brass. Mater. Sci. Eng., A 371, 51 (2004).
11.Oliver, W.C. and Pharr, G.M.: An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments. J. Mater. Res. 7, 1564 (1992).
12.Liu, M.Y., Shi, B., Guo, J.X., Cai, X., and Song, H.W.: Lattice constant dependence of elastic modulus for ultrafine grained mild steel. Scr. Metall. 49, 167 (2003).
13.Sieradzki, K. and Newman, R.C.: Stress-corrosion cracking. J. Phys. Chem. Solids 48, 1101 (1987).
14.Sieradzki, K. and Newman, R.C.: Brittle behavior of ductile metals during stress-corrosion cracking. Philos. Mag. A 51, 95 (1985).
15.Gavriljuk, V.G., Bugaev, V.N., Petrov, Yu.N., Tarasenko, A.V., and Yanchitski, B.Z.: Hydrogen-induced equilibrium vacancies in fcc iron-base alloys. Scr. Mater. 34, 903 (1996).
16.Sakaki, K., Kawase, T., Hirato, M., Mizuno, M., Araki, H., Shiraia, Y., and Nagumob, M.: The effect of hydrogen on vacancy generation in iron by plastic deformation. Scr. Mater. 55, 1031 (2006).
17.Zhang, T.Y., Chu, W.Y., and Hsiao, C.M.: Mechanism of hydrogen induced softening. Scr. Metall. 20, 225 (1986).
18.Wang, Y.B., Chu, W.Y., and Hsiao, C.M.: Hydrogen induced dislocation multiplication in a Fe-3Si single crystal. Scr. Metall. 19, 1161 (1985).

Keywords

Influence of hydrogen on the tarnishing film-induced brittle cracking of brass

  • Cheng Zhang (a1), Yan Jing Su (a1), Li jie Qiao (a1) and Wu yang Chu (a1)

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