期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2015.04.008
关键词
Cold spray; Cu-Ag alloys; Second phase precipitation; Work hardening; Heat treatment; Yield strength
In this work, the mechanical properties of copper-silver cold sprayed deposits were studied versus composition (Ag content), deposition parameters and heat treatment temperature and duration. Low oxygen content (< 150 ppm), low porosity level (< 0.1%) and low residual stress level (< 1 MPa) were reached for deposits leading to an ultimate tensile strength higher than 600 MPa with about 10% elongation at rupture. In addition, results show that the high mechanical properties, obtained through second phase precipitation and cold work effect, can also be finely tailored by an adequate composition choice (i.e. Ag content), and further heat treatments. (C) 2015 Elsevier B.V. All rights reserved.
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