Accession Number:

AD0844277

Title:

The Relation Between the Grain Size and the Tendency of Austenitic Corrosion Resistant Steels to Intercrystalline Corrosion (Vztahy Mezi Velikosti Zrna a Sklonem Austenitickych Korozivzdornych Oceli i Mezikrystalove Korozi)

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1967-11-03

Pagination or Media Count:

15.0

Abstract:

On the basis of collected knowledge about intercrystalline corrosion of austenitic stainless steels a suggestion of evaluating the influence of grain size upon intercrystalline corrosion, both of unstabilized and stabilized steels, is discussed. According to well-known and adapted formulas which express the influence of nickel, chromium and molybdenum, niobium and - above all carbon, a relation was stated, which includes the influence of grain size and evaluates the resistance of steels, type Cr18Ni9, to intercrystalline corrosion. The relation is represented by a nomograph on logarithmic scale with the aim, to evaluate intercrystalline corrosion of stainless steels with different granularity and different composition, in a simple way. In the conclusion, practical applicability of the suggested method is demonstrated.

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE