Iron Man has faced death in some comic book scenarios. Different storylines handle his fate differently. Sometimes it's a heroic sacrifice, and in others, there might be a chance of return or alternate outcomes.
Yes. Iron Man's demise was depicted in certain Marvel comic books. The circumstances and implications of his death were explored, and it had a ripple effect on the characters and plotlines within the comic book world.
Iron Man died in a very dramatic way. He used the power of the Infinity Stones to stop a major threat, but it cost him his life as the strain was too much for his mortal form.