Carbon restoration for decarburized layer in spring steel

摘要: It is well known that decarburization has a bad effect on spring steel strength. This research presents method to improve the product quality by means of recovering layer. Unlike conventional methods, which usually use mechanical means, this relies basic metallurgical principle, process diffusion. A carbon-rich layer coated surface object. The object then heat treated at conditions similar manufacturing process. To accomplish objective, an experiment and finite-element analysis (FEA) simulation were performed. material chosen was hypo-eutectoid with excessive performed digitizing optical micrograph decarburized raw materials meshing picture get elements start analysis. Simple diffusion theory applied model. Various time parameters used simulate redistribution carbon atoms. Comparable simulation, also began coating onto material. samples austenitized subsequently either annealed or quenched. state restoration evaluated. concluded idea can be implemented in