Author： Blaz L. Konior Z. Majda T.
Publisher： Springer Publishing Company
ISSN： 0022-2461
Source： Journal of Materials Science, Vol.36, Iss.15, 2001-08, pp. : 3629-3635
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Abstract
Hot compression tests were performed on commercial CuZn39Pb3 alloy deformed at strain rate of 0.0007 s^−1 and 0.02 s^−1 within temperature range of 923 K–1023 K. Flow stress vs. deformation temperature and strain rate dependence was found to follow the relation: . 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.
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