Deformation Processing of Anisotropic Metals
Abstract
Elevated-temperature tensile test were carried out on the alloy Zircaloy 4. As in the case of the Ti alloy 2.5 Sn-4 A1, a very sharp maximum in strain rate sensitivity, m, was found at or near the alpha-beta transus. Elongation values again correlated with strain rate sensitivity; however the maximum value of 220% was not as striking as in the titanium alloy. Values of strain ratio, R, were high in Zircaloy 4 (approximately 4 at Rt) and decreased with increasing testing temperature. For temperatures below 600 C, R was relatively constant with strain. In the range 600 to 800 C, R was found to increase remarkably after the onset of necking. In this temperature range necking occurred only in the width direction, leading to chisel-edged fractures showing 100% reduction in width and R values approaching infinity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1965
- Accession Number
- AD0463896
Entities
People
- D. H. Avery
- W. A. Backofen
Organizations
- Massachusetts Institute of Technology