Yes, it could, in principle at least. Re-heating isn't likely an issue; that it came apart so easily suggests it never got hot enough in the first place. But it would require thorough cleaning and repainting afterward. Unless it's a high-end frame, it's probably more cost-effective to replace the fork. Chrome plated replacement forks look decent, are reasonable priced and available. Be sure to get an appropriate steer tube length. Match the wheel size (be sure the brakes will reach), and get close to the original fork rake to maintain consistent handling.