Autor:	Teresa Majda, Ludwik Blaz, Zdzislaw Konior
Rok vydání:	2001
Předmět:	Materials science Mechanical Engineering Metallurgy Alloy Recrystallization (metallurgy) Thermodynamics Flow stress Atmospheric temperature range Strain rate engineering.material Mechanics of Materials Impurity Dynamic recrystallization engineering General Materials Science Solubility
Zdroj:	Journal of Materials Science. 36:3629-3635
ISSN:	0022-2461
Popis:	Hot compression tests were performed on commercial CuZn39Pb3 alloy deformed at strain rate of 0.0007 s−1and 0.02 s−1within temperature range of 923 K–1023 K. Flow stress vs. deformation temperature and strain rate dependence was found to follow the relation: \(\dot \varepsilon = 1.23 \cdot \sigma ^{3.79} \exp ( - 212/RT)\). Both dynamic recovery and dynamic recrystallization have operated in the presence of fine lead particles being responsible for effective flow stress reduction with increasing deformation temperature. Transformation of α- to β phase above the temperature approx. 1000 K and the following fast cooling of hot deformed samples produced fine, plate-like structure of α-grains, within retained β-matrix. Moreover, coherent fine Fe-particles were observed within α-grains being not detected at any area of β-matrix. The last effect was supposed to result from lower solubility of iron in α-phase than that for β-phase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::09d2265db37a22f60c71ad1729d2b467 https://doi.org/10.1023/a:1017988725494 Zobrazit plný text záznamu Full text from SpringerLink