How To Read A Phase Diagram

In single phase diagrams l1 will run down the left side of the page and n or l2 will run down the right side of the page. Reading a ternary diagram a ternary diagram is a triangle with each of the three apexes representing a composition such as sandstone shale and limestone.

Lecture 8 Phase Diagrams

Parts 2 4 show you how to read and interpret simple phase diagrams describe the important iron carbon phase diagram and give examples of some more complex phase diagrams.

How to read a phase diagram. At these temperatures and pressures the rate at which the solid sublimes to form a gas is equal to the rate at which the gas condenses to form a solid. Control wiring electrical contacts normally open and normally closed contacts. Reading wiring diagrams and understanding electrical symbols.

You can learn more about how to read and use phase diagrams in a few of our courses. How to read a phase diagrams. A phase diagram helps show what phase exist at what temperature and pressure.

The liquid will change to a vapour it boils when it crosses the boundary line between the two areas. If it is temperature that you are varying you can easily read off the boiling temperature from the phase diagram. Metallurgy of steel and metallurgy of steel heat treating teach about the iron carbon phase diagram.

This is the phase diagram for water. On the x axis i have temperature and at any given point this diagram will tell you whether youre dealing with a solid so solid will be here a liquid will be here or a gas. A phase diagram is a graph which shows under what conditions of temperature and pressure distinct phases of matter occur.

Its the point at the bottom of the v formed by the liquidus lines. Everybody remembers that the boiling point of water is 100c but thats only true at a certain pressure 1 bar. So just to understand whats going on here is that on this axis i have pressure.

If you know everything already you can take this. These diagrams plot pressure on the y axis and temperature on the x axis. How to read a phase diagram and why you might want to.

Boiling points melting points and sublimation points vary with pressure. Eutectic is a term that names the point of the v described above. The simplest phase diagrams are of pure substances.

Although phases are conceptually simple they are difficult to define precisely. Reading wiring diagrams and understanding electrical symbols. In the diagram above it is the temperature where the red arrow crosses the boundary line.

Metallurgy of precipitation strengthening teaches about the aluminum copper phase diagram. The points along the line connecting points a and b in the phase diagram in the figure above represent all combinations of temperature and pressure at which the solid is in equilibrium with the gas. For the moment they are labeled a b and c.

Parts 5 7 introduce phase transformations and show how phase diagrams can be used to predict microstructure. Solidus and liquidus are terms that name the phase boundaries between a solid phase and a phase that contains both a solid and a liquid solidus or between that solidliquid phase and a liquid phase liquidus.

Reading A Ternary Diagram Ternary Plotting Program Power Point