What is role of phosphorus in cast iron?

Results show that increasing phosphorous from 0.45 to 2.58\% in gray cast iron increases the amount of eutectic phosphide from 4.7 to 17.81\%, weakens mechanical properties (tensile strength reduced from 297.5 to 184.1 MPa, impact strength from 4.3 to 2.7 J), increases hardness from 215.43 to 249.38 and lowers the …

What effect is included due to phosphorus and Sulphur in cast iron?

7. What is the effect of phosphorus and sulphur in cast irons? Explanation: Although sulphur stabilizes cementite, it causes brittleness. The same is true for phosphorus, due to which both elements are limited to a minimum quantity.

What is composition of cast iron?

cast iron, an alloy of iron that contains 2 to 4 percent carbon, along with varying amounts of silicon and manganese and traces of impurities such as sulfur and phosphorus.

What causes pits in cast iron?

There are several ways a piece of cast iron cookware can be damaged, as noted above: chipping, cracking, warping, and pitting. The first two can be caused by physical impact; the second two by improper rapid heating or cooling, also known as thermal shock.

What is the function of phosphorus?

About 85\% of the body’s phosphorus is in bones and teeth. Phosphorous is also present in smaller amounts in cells and tissues throughout the body. Phosphorus helps filter out waste in the kidneys and plays an essential role in how the body stores and uses energy. It also helps reduce muscle pain after a workout.

What is the reason for the name phosphorus?

Phosphorus gets its name from the Greek word “phosphoros” meaning “bringer of light.” Henning Brandt picked this name because the element glowed in the dark.

What does iron and phosphorus make?

Iron phosphide is a chemical compound of iron and phosphorus, with a formula of FeP. Iron phosphide reacts with moisture and acids producing phosphine (PH3), a toxic and pyrophoric gas. Iron phosphide can be used as a semiconductor.

How do you separate sulphur iron and phosphorus?

1) Spread the sample over paper & move bar magnet over it. Iron is stuck to bar magnet while sulphur, phosphorus are left behind. 2) Remaining mixture is dissolved in carbon disulphide. Sulphur being soluble in CS2 is filtered & phosphorus is left in residue.

What is the effect of aluminum in cast iron?

The results showed that addition of aluminum to gray cast iron causes formation of ferrite matrix, which leads to a decrease in hardness value. Increasing silicon content up to 2 wt. \% in cast iron with 4 wt. \% aluminum intensifies the formation of ferrite matrix, while further increase to 3 wt.

What is the source of phosphorus?

Phosphorus can be found in foods (organic phosphorus) and is naturally found in protein-rich foods such as meats, poultry, fish, nuts, beans and dairy products. Phosphorus found in animal foods is absorbed more easily than phosphorus found in plant foods.