ELASTIC PROPERTIES RESEARCH
Abstract
Additional est results on the modulus of elasticity and creep properties of textured Fe-Si (3% Si) sheet reveal a strong effect of ferromagnetism on the elastic and plastic properties. Excellent agreement is obtained between the activation e ergies for creep and self-diffusion if a modulus-compensated creep rate is utilized in the determination of the activation energy for self-diffusion. Similar tests on pure Fe (Puron) reveal almost identical trends. Dynamic modulus measurements were made on polycry talline Cu (grain diameter, L = 0.03mm) containing a strong preferred orient tion texture and on a randomly oriented polycrystalline s mple. A resonant frequency could not be detected beyond 300 C for the random Cu sample; the same difficulty was not encountered with the textured Cu (low angle boundaries) until about 550 C was reached. These peculiar results were entatively associated with grain boundary relaxation effects. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1962
- Accession Number
- AD0275449
Entities
People
- J.l. Lytton
- K.t. Kamber
Organizations
- Stanford University