Kerber needed just 51 minutes to produce the quarterfinal victory, setting up a matchup with Maria Kirilenko.
Kirilenko ousted Urszula Radwanska 6-1, 6-4. Kerber and Kirilenko will be meeting for the first time with Kerber trying to capture the third title of her career.
Pavlyuchenkova ended the run of Lauren Davis 6-2, 7-5 and Niculescu eliminated Timea Babos 7-6, 6-2. Babos had surprised fourth-seeded Ana Ivanovic in the second round.