A superficial layer, enriched in Mo (2 to 8 at. %) and Ni (12 wt %) onto a FeCr alloy substrate, has been obtained using the electron beam alloying technique. The crystallographic structure of the melted layer is identified by SEM and TEM. The potentiodynamic current-voltage curves are recorded and the intergranular corrosion resistance is evaluated after potentiostatic attack in the transpassive range in 0.5 M H2SO4. The influence of the matrix impurities as C, P, Ti, and S must be taken into account. In fact, some elements may segregate in the grain-boundaries of the new alloy and in some cases induce a harmful intergranular corrosion.
|Pages (from-to)||781 - 784|
|Number of pages||4|
|Journal||Materials Science Forum|
|Issue number||PART 2|
|Publication status||Published - 1996|
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Vignaud, C., Keddam, M., Pillier, F., Tosto, S., & Nenci, F. (1996). Intergranular corrosion of a Fe-Cr alloy surface enriched in Mo or Ni by electron beam alloying. Materials Science Forum, 207-209(PART 2), 781 - 784.