@congnh2412 What? They're not alloys. They're layers. Having layers like this is incredibly common. Demeyere does it the same way, but with stainless steel on the top. Other pans, such as tefal, have also had titanium dust on the top layer.
@congnh2412 Titanium is not new though? It has been used in frying pans before in different ways and titanium is has been surgically inserted into people for quite a while now.