Instead, Williams has been christened "Ironheart."
"Ironheart" writer Brian Michael Bendis told Wired that "Iron Woman seemed old fashioned to some."
"Iron Maiden looked like a legal nightmare," Bendis said. "And Ironheart, coined by [comic book editor] Joe Quesada, after I told him my planned story for Riri, speaks not only to the soul of the character but to the Iron Man franchise as a whole."
Bendis has partnered with artist Stefano Caselli to tell Ironheart's story in this fall's "Invincible Iron Man #1."
In July, Marvel announced that a black female character would be taking over the suit from Tony Stark.
The change signaled yet another step in Marvel's growing lineup of diverse characters. It has also introduced a black and Hispanic Spider-Man, an Asian Hulk, an African-American Captain America and a Muslim Ms. Marvel.
Having a black woman as Iron Man has not gone over well with some fans, but Bendis said at the time of the announcement that the change is a natural progression.
"I think what's most important is that the character is created in an organic setting," he told Time. "We never had a meeting saying, 'we need to create this character.' It's inspired by the world around me and not seeing that represented enough in popular culture."