SciChart supports XML serialization via implementation of IXmlSerializable interface. This means that each serializable type has 2 implemented methods of this interface:

public virtual void WriteXml (XmlWriter writer)
{
    // Here we serialize properties we want to XmlWriter
}

public void ReadXml (XmlReader reader)
{
    // Here we reading and restoring state of properties from XmlReader
}

IXmlSerializable has also definition of GetSchema() method but this method should not be used. Please take a look at this documentation article to find out more about serialization in SciChart and see an example. Also it is worth to mention that the Printing / Export in SciChart relies on the chart serialization mechanism.