Initation of pitting corrosion in martensitic stainless steels. [17-4PH; 13-8Mo; Custom 450]

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:5634344

Cieslak, W R; Semarge, R E; Bovard, F S

The form of localized corrosion known as pitting often initiates preferentially at microstructural inhomogeneities. The pit initiation resistance, therefore, is controlled by the characteristics of the initiation sites, rather than by the bulk material composition. This investigation correlates the pit initiation resistance, as measured by critical pitting potentials, with preferred pit initiation sites for 3 martensitic stainless steels. Pit initiation sites are determined by secondary electron (SE) and backscattered electron (BSE) imaging and energy dispersive and wavelength dispersive spectrometries (EDS and WDS) with a scalling electron microscope (SEM) and an electron probe microanalyzer (EPMA).

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5634344
• Report Number(s): SAND-86-0251C; CONF-860829-3; ON: DE86007627
• Resource Relation: Conference: Annual joint meeting of the Electron Microscopy Society of America and the Microbeam Analysis Society, Albuquerque, NM, USA, 10 Aug 1986; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
STAINLESS STEELS
PITTING CORROSION
CORROSION RESISTANCE
INCLUSIONS
MARTENSITE
ALLOYS
CARBON ADDITIONS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CORROSION
CORROSION RESISTANT ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
STEELS
360106* - Metals & Alloys- Radiation Effects