Open AccessMicrostructure and corrosion resistance of Al3(Zr, Ti)/Al composite prepared by powder metallurgy
Author(s) -
Daobing Xu,
Wei Long,
Xiaoping Zhou
Publication year - 2020
Publication title -
advanced composites letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.188
H-Index - 21
eISSN - 2633-366X
pISSN - 0963-6935
DOI - 10.1177/2633366x20906160
Subject(s) - materials science , corrosion , microstructure , powder metallurgy , metallurgy , composite number , composite material
In the automotive and aviation fields, the complex use environment is critical to the performance requirements of materials, the corrosion resistance of materials severely limits the service life of materials, and improving the corrosion resistance of materials is of great significance in industrial production. In this article, in situ synthesis of powder metallurgy was used to prepare Al-Zr-Ti composites, and the effects of the addition of different amounts of Ti elements on the microstructure and corrosion resistance of Al-Zr-Ti composites were studied. The results show that Ti atoms form Al 3 (Zr, Ti) compounds by substituting Zr atoms in Al 3 Zr in composite materials to form substituted solid solutions to improve the properties of composite materials. With the addition of Ti, the corrosion resistance of the composites is improved compared with Al-Zr binary; when the Ti content is 10% (wt), the corrosion resistance of the composites reaches the best value, the corrosion potential is −0.67211 V, and the corrosion current is 1.4804 × 10 −7 A cm −2 .