Details

Autor(en) / Beteiligte

• Cabanillas, E.D.
• Desimoni, J.
• Punte, G.
• Mercader, R.C.

Titel

Formation of carbides by electro-discharge machining of alpha iron

Ist Teil von

• Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2000-01, Vol.276 (1), p.133-140

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2000

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The surface of pure iron sheets have been submitted to spark-planing erosion using kerosene as dielectric under a wide range of machining conditions: discharge duration times between 2 and 3072 μs, and spark currents between 3.3 and 25 A. The carbides formed by the electro-discharge machining process have been identified by X-ray diffraction and Mössbauer spectroscopy. Two different regimes of carbide formation were established: for sparks of energy below ≈0.5 J only ε-carbide, austenite and martensite were observed; for sparks of higher energy mainly cementite, austenite and traces of martensite, Fe 7C 3, or Fe 5C 2 were detected.