Accession Number:

ADA151611

Title:

Effect of Loading History on Stress Corrosion Cracking in High Strength Steel,

Descriptive Note:

Corporate Author:

NORTHWESTERN UNIV EVANSTON IL

Personal Author(s):

• Hirose, Y.
• Mura, T.

Report Date:

1984-01-01

Pagination or Media Count:

17.0

Abstract:

A new dislocation model is proposed to explain the crack nucleation time and the incubation time due to load variation. The model suggests that the change in the crack nucleation time and the increase of the incubation time due to preloading or load reduction are caused by reducing the hydrostatic pressure and spreading the hydrogen saturated region which requires more time for the hydrogen accumulation. Originator supplied keywords include Stress corrosion theory hydrogen diffusion loading history Mathematical models.

Descriptors:

• *CRACKS
• *LOADS(FORCES)
• *STEEL
• *STRESS CORROSION
• DIFFUSION
• HYDROGEN
• HYDROSTATIC PRESSURE
• INCUBATION
• MATHEMATICAL MODELS
• NUCLEATION
• REPRINTS
• TIME

Subject Categories:

• Properties of Metals and Alloys
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE