INTERCRYSTALLINE CORROSION OF NICKEL-MOLYBDENUM AND NICKEL-MOLYBDENUM- CHROMIUM ALLOYS

Journal Article · Sun May 01 00:00:00 EDT 1960 · Z. Metallk.

OSTI ID:4163024

Grafen, H; Bohm, G

In order to investigate intercrystalline corrosion of Ni--Mo and Ni--Mo-- Cr alloys, a short-time test was developed and grain-boundary breakdown diagrams were represented for three alloys. The precipitations leading to corrosion- susceptibility were identified by x-raydiffraction analysis and the mechanism of intergranular corrosion was explained. The cause of intercrystalline attack is obviously a local decrease of corrosion resistance by grain-boundary precipitation, which effects a reduction of Mo (Ni--Mo alloys) or Cr and Mo (Ni-- Mo--Cr alloys) in the grain edges. (auth)

• Research Organization: Badische Anilin- & soda-Fabrik AG, Ludwigshafen am Rhein, Ger.
• NSA Number: NSA-14-016969
• OSTI ID: 4163024
• Journal Information: Z. Metallk., Journal Name: Z. Metallk. Vol. Vol: 51
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

CHROMIUM ALLOYS
CORROSION
DIFFRACTION
GRAIN BOUNDARIES
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PRECIPITATION
X RADIATION