On the dance floor, Phyllis Bogart moves like she’s made of electricity, not metal. At 78, her pink-and-purple-streaked curls bounce as she shimmies and shakes with the energy of someone half her age, each twirl punctuated by a wide, wild grin. It’s clear that four hip replacements, a mechanical knee and a string of other surgeries haven’t slowed her down — though they did earn her a nickname. “With all the titanium in my body, I’ve become known as the bionic babe,” Bogart told The Post. The