Phase is a homogeneous portion of a system that has uniform chemical and physical characteristics. For example water and ice are two phases of water or Ferrite (BCC) and Austenite (FCC) are two phases of iron (Fe).

 

Phase diagrams , also known as equilibrium diagrams or constitutional diagrams, is the best method to record the data related to phase changes in many alloy systems.

 

Phase diagrams are usually plotted with alloys composition as the abscissa and temperature as the ordinate.

 

 

 Recommended Websites

 

States of Matter 

http://www.youtube.com/watch?v=WenwtcuqOj8&feature=SeriesPlayList&p=166048DD75B05C0D&index=24 

 

Cast Irons

Cast irons contain 2-4 wt% of carbon (C) with a high silicon (Si) concentrations and a greater concentration of impurities than steels...

http://www.msm.cam.ac.uk/phase-trans/2001/adi/cast.iron.html

 

Metals basics - When you think of all metalic alloys available, it is helpful to be able to group together those that have similar properties…

http://www.ami.ac.uk/courses/topics/0131_mb/index.html

 

   

 

Lessons for Cryonics from Metallurgy and Ceramics - Mixtures of some metals, such as copper (Cu) and nickel (Ni), are completely soluble in solid states for all concentrations of both metals.

http://www.benbest.com/cryonics/lessons.html

 

MIT - Introduction to Solid State Chemistry