Today, let's continue to popularize the role
and function of various chemical components in steel.
9. Zr: Adding a small amount of zirconium has the effect of degassing,
purifying and refining grains,
which is beneficial to the low temperature performance of steel
and improves the stamping performance.
It is often used in the manufacture of
ultra-high-strength steel and in nickel-based superalloys.
10. Si: It can dissolve in ferrite and austenite to
improve the hardness and strength of steel,
and can reduce the density,
thermal conductivity and electrical conductivity of steel.
It can promote the coarsening of ferrite grains and reduce the coercivity.
There is a tendency to reduce the anisotropy of the crystal,
making the magnetization easier and reducing the magnetoresistance.
11. Mn: It is a good deoxidizer and desulfurizer.
It can eliminate or weaken the hot brittleness of steel caused by sulfur,
thereby improving the hot workability of steel.
12. AL: Aluminum is mainly used for deoxidation and grain refinement.
Aluminum can inhibit the aging of low carbon steel
and improve the toughness of steel at low temperature.
Aluminum has a great solid solution strengthening effect in steel,
which improves the wear resistance,
fatigue strength and core mechanical properties of carburized steel.
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and function of various chemical components in steel.
9. Zr: Adding a small amount of zirconium has the effect of degassing,
purifying and refining grains,
which is beneficial to the low temperature performance of steel
and improves the stamping performance.
It is often used in the manufacture of
ultra-high-strength steel and in nickel-based superalloys.
10. Si: It can dissolve in ferrite and austenite to
improve the hardness and strength of steel,
and can reduce the density,
thermal conductivity and electrical conductivity of steel.
It can promote the coarsening of ferrite grains and reduce the coercivity.
There is a tendency to reduce the anisotropy of the crystal,
making the magnetization easier and reducing the magnetoresistance.
11. Mn: It is a good deoxidizer and desulfurizer.
It can eliminate or weaken the hot brittleness of steel caused by sulfur,
thereby improving the hot workability of steel.
12. AL: Aluminum is mainly used for deoxidation and grain refinement.
Aluminum can inhibit the aging of low carbon steel
and improve the toughness of steel at low temperature.
Aluminum has a great solid solution strengthening effect in steel,
which improves the wear resistance,
fatigue strength and core mechanical properties of carburized steel.
Follow me to learn more about casting knowledge~
