Yes, you can do this. In the following, I'm using CC-BY-4.0 terminology.
- The license's definition of Adapted Material explicitly includes translations.
- You are granted the right to produce and Share such Adapted Material.
- This right is subject to conditions. However, the only condition of this license is to retain/provide Attribution to the original.
- There are no conditions that would prevent commercial purposes (this is not the NC NonCommercial license variant).
- There are no conditions that would require you to keep the same license (this is not the SA ShareAlike license variant).
This generally holds for all CC-BY license versions, though they might use slightly different terminology. Two caveats though:
- Different license versions have slightly different attribution requirements.
- Different license versions impose different consequences when the license conditions are breached, possibly including immediate termination of the license without a chance to remedy the breach.
- Some material is presented as being Creative Commons licensed without consent from the copyright holder.
Thus, it would be good to make sure that the original articles were actually published under that license by that author, and that you are complying with the specific attribution requirements for the given version of the CC-BY license.