Official Answer
Answer
Decarburization shi ne asarar carbon daga saman Layer na karfe a lokacin da zafi jiyya a cikin wani oxygen-arzikin yanayi. Wannan yana haifar da laushin fata 'ferrite' tare da ƙarancin yawan amfanin ƙasa fiye da ainihin. Don maɓuɓɓugar ruwan raƙuman ruwa, wanda ya dogara da damuwa na fiber surface $ \ sigma = \ frac{3 \pi P D_m}{2 N^2 b t^2}$, decarburization yana kaiwa ga 'saitin' nan da nan (asara na dindindin na tsayi kyauta) akan matsawar farko. Metallographic examination (per ASTM E1077) would reveal a lighter-colored surface layer. This is avoided by using 'atmosphere-controlled' furnaces or vacuum heat treatment for high-reliability parts.
