Thermal stress relief or baking for Hydrogen embrittlement is a process after plating to remove the hydrogen infused during the cleaning and plating process. The hydrogen gas bubbles form in the granular structure of the metal and causes embrittleness and premature failure of the part. These stress cracks are what leads to eventual failure in the material. Hydrogen can be removed within the first three hours, however, some harder materials require a baking time of up to 23 hours.

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