Inconel 718 Turns Blue: Serious Qualification Check

Summary for inconel 718 turns blue Discussion

The focus keyphrase "inconel 718 turns blue" fits this thread about a 3D printed In718 aerospace part that discolored blue after vacuum heat treatment to AMS requirements. The question asks how to qualify the product after the color change. However, the excerpt provided contains only Arun D Quality’s question and no posted answers, so there is no documented explanation of the cause, acceptability, or qualification path in the source text. Based on the thread as shown, the key issue is whether the blue coloration indicates oxidation, contamination, or another surface condition that could affect aerospace acceptance, but no expert response is included here. Any qualification decision would therefore need to rely on the applicable AMS specification, customer requirements, and metallurgical inspection results rather than the excerpt alone.