Accession Number : ADA313885

Title :   Stress Corrosion Crack Detection in Alloy 600 in High Temperature Caustic.

Descriptive Note : Master's thesis,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF NUCLEAR ENGINEERING

Personal Author(s) : Brisson, Bruce W.

PDF Url : ADA313885

Report Date : JUN 1996

Pagination or Media Count : 147

Abstract : Alloy 600, the material used for pressurized water reactor steam generator tubing, is susceptible to environmentally assisted stress corrosion cracking. Intergranular stress corrosion cracking (IGSCC) attacks the tubes in areas of high residual stress, and in crevice regions. No method has been successfully developed to monitor steam generator tubing in-situ for crack initiation and growth. Essentially all available published IGSCC crack growth data for alloy 600 is based on non-tubing material. Although it is very likely that the current data base is applicable to tubing processing, differences between tube and other geometries make a comparison between tubing and other data important for verification purposes. However, obtaining crack initiation and growth data from tubing is difficult due to the geometry and the thin wall thickness.

Descriptors :   *DETECTION, *HIGH TEMPERATURE, *CRACK PROPAGATION, *STRESS CORROSION, *CAUSTICS, DATA BASES, THICKNESS, GROWTH(GENERAL), CRACKING(FRACTURING), THESES, ALLOYS, RESIDUAL STRESS, GENERATORS, STEAM, TUBES, GRANULES, THIN WALLS.

Subject Categories : Properties of Metals and Alloys
      Physical Chemistry
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE