Without timely intervention, metals can develop porosity, resulting in material degradation and property damage. Conversely, heating certain metals above 650 degrees Celsius may trigger decarburization, potentially leading to a decrease in fatigue strength. Most metal products used in industry nowadays require heat treatment beforehand. Heat treatment is applying heat to metal objec... https://www.metalsminingreview.com/news/identifying-and-addressing-the-most-common-heattreatment-metal-defects-nwid-926.html