Ultrafine Grain Size Effects on Corrosion Behavior.
Abstract
The corrosion behavior of copper alloy (1.0 Cr -0.10 Cb - 0.075 Ti) in grain size range (1.45 to 12.3 micrometers) and 1010 carbon steel (1.0Cb - 0.60 Mn) in grain size range (0.92 to 77.0 micrometers) has been investigated by means of anodic polarization measurements. Based on the anodic polarization measurements, a model is proposed which relates grain size to the critical current density/grain boundary length in one square centimeter. The model indicates that as grain size increases the apparent grain boundary current will increase and suggests finer grain size alloys will be more corrosion resistant and have longer periods of crack incubation. Selected metallographic studies and potential-time measurements were made. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1971
- Accession Number
- AD0737587
Entities
People
- Chester V. Zabielski
- Milton Levy
Organizations
- United States Army Research Laboratory