Effect of specimen width on stress corrosion cracking of type 304 stainless steel

Journal Article · Fri Oct 01 00:00:00 EDT 1993 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3316002· OSTI ID:5630691

Nishimura, R ^[1]

---

1. Government Industrial Research Institute, Hiroshima (Japan). Material Engineering Div.

Corrosion current density was related to crack tips (j[sub s]), time to failure (t[sub f]), and crack propagating length (L[sub ss]) during the secondary region in the corrosion elongation curve under constant-load conditions. This yielded the relation: L[sub ss]/j[sub s]t[sub f]. Under constant environmental conditions, t[sub f] was inversely proportional to L[sub ss], with j[sub s] presumed constant. The effect of width at gauge length on stress corrosion cracking (SCC) of a solution-annealed type 304 austenitic stainless steel (UNS S304000) was investigated in 0.82 M sulfuric acid solution using a constant-load method, under the assumption that L[sub ss] was proportional to width. Results showed t[sub f] increased with increasing width, but the steady state elongation rate (i[sub ss]) was constant independent of width. This implied that the predicted relationship was correct. A process for SCC was discussed on the basis of that relationship.

• OSTI ID: 5630691
• Journal Information: Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 49:10; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
AUSTENITIC STEELS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CORROSION
CORROSION RESISTANT ALLOYS
CRACK PROPAGATION
DIMENSIONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
NICKEL ALLOYS
STAINLESS STEEL-304
STAINLESS STEELS
STEADY-STATE CONDITIONS
STEEL-CR19NI10
STEELS
STRESS CORROSION
WIDTH