Вы здесь

Funct. Mater. 2017; 24 (4): 530-533.

doi:https://doi.org/10.15407/fm24.04.530

Relaxation of stress occurring in Cd-Ni diffusion zone with formation of intermetallic phase

V.V.Bogdanov1, V.G.Kononenko1, M.A.Volosyuk2, A.V.Volosyuk1

1V.N.Karazin Kharkiv National University, 4 Svobody Sq., 61022 Kharkiv, Ukraine
2Kharkiv National Automobile and Highway University, 25 Yaroslava Mudrogo Str., 61002 Kharkiv, Ukraine

Abstract: 

Relaxation of mechanical stress occurring in Cd-Ni diffusion zone was studied by metallographic methods. Brittle relaxation of tensile stress was revealed in Cd21Ni5 intermetallic phase growing in the diffusion zone. Evaluation of this stress made by the geometry of macroscopic cracks in the intermetallic phase showed values being by a factor 1.2 lower than stress values calculated by volume defect related with the intermetallic phase formation. As plastic deformation within the intermetallic phase is excluded, whereas brittle relaxation begins at the Cd21Ni5-Ni boundary, it was concluded that induced in Ni compressive stress relaxed by plastic deformation mechanism to the level of Ni elastic limit.

Keywords: 
intermetallic phase, diffusion zone, brittle relaxation, plastic deformation.
References: 

1. A.Wasilkowska, M.Bartsch, F.Stein et al., Mater. Sci. Eng., A 381, 1 (2004). https://doi.org/10.1016/j.msea.2004.04.039

2. Ya.E.Geguzin, Diffusive Area, Nauka, Moscow (1979) [in Russian].

3. V.G.Kononenko, V.V.Bogdanov, M.A.Volosyuk, A.V.Volosyuk, Functional Materials, 23, 158 (2016). https://doi.org/10.15407/fm23.02.158

4. B.D.Dun, Materials and Processes for Spacecraft and High Reliability Applications, Springer International Publishing, Switzerland (2016).

5. Ye.Ye.Deryugin, N.Antipina, Mechanics. Mater. Sci. Eng., 1, 48 (2015).

6. L.E.Kar'kina, O.A.Elkina, L.I.Yakovenkova, Bulletin of the Russian Academy of Sciences: Physics, 71, 618 (2007). https://doi.org/10.3103/S1062873807050061

7. Ming-Che Chen, Che-Wei Kuo, Chia-Ming Chang et al., Materials Transactions, 48, 2595 (2007). https://doi.org/10.2320/matertrans.MD200718

8. Y.P.Raizer, Usp. Fiz. Nauk, 100, 329 (1970). https://doi.org/10.3367/UFNr.0100.197002e.0329

9. L.N.Paritskaya, V.V.Bogdanov, Defect and Diffusion Forum, 143-147, 615 (1997).

10. L.N.Paritskaya, Yu.S.Kaganovskii, V.V.Bogdanov et al., Functional Materials, 6, 235 (1999).

11. M.Hansen, K.Anderko, Constitution of Binary Alloys, 2nd Edition, McGraw-Hill Book Company, New York (1958).

12. L.N.Paritskaya, V.V.Bogdanov, Defect and Diffusion Forum, 129-130, 79 (1996).

13. Yu.Kaganovskii, L.N.Paritskaya, V.V.Bogdanov, W.Lojkowski, Defect and Diffusion Forum, 264, 123 (2007). https://doi.org/10.4028/www.scientific.net/DDF.264.123

.

Current number: