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Additional resources for Advances in Surface Treatments. Technology–Applications–Effects

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Sylvester (1975). Finite element solution of saturated travelling magnetic field problems. IEEE Trans, on Power Apparatus and Systems, Vol. 3, May-June, 866-871. D. (1983). IEEE Trans. Magn. Vol. G. Press. (1966). Industrial application of induction heating. Pergamon Melander M. (1985). Theoretical and experimental study of stationary and progressive induction hardening. Jj_ Heat Treating, Vol. 4, N. , 145166. Ericcson (1983). Theoretical and experimental study of induction and laser hardening.

Terzic (type A) treated under & - conditions is shown in £- compound layer is 5 urn thick. 9. Γ α'β DiSTANCEimm) Fig. 7. Microhardness profile of plasma&gas nitrided crankshaft. 10 ) was porous. 39 Some experiences Fig. 8. Microstructure of plasma nitrided crankshaft material : 18h at 490 C in 4 0 * N 2 + 60*H 2 gas mixture at 3mbar (etched in 3* nital). tW 25/um Fig. 9. Microstructure of plasma nitrided crankshaft material : 18h at 490 C in 70*N 2 + 3 0 * H Z gas mixture at 3mbar (etched in 3* nital).

Fig. 5. Forging folds of crankshaft (etched in 50% boiled HCl). Some experiences 37 RESULTS AND DISCUSSION After the nitriding journal and pin dimensions and roughness were measured. The roughness of plasma nitrided crankshafts was Ra = 0,50-0,65 yum, and of those gas nitrided, Ra = 0,60-0,75 jum. Fig. 6. Crankshaft fatigue testing rig. The crankshaft journal diameters "swelled" 3jum when plasma nitrided under conditions to get V* - compound, 4 jum when nitrided under conditions to get £, - compound, and 6jum after gas nitriding.

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