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1. A study was made of the following methods of milling of ferrochromium: in a vibratory ball mill under alcohol and acetone and in a planetary mill. The most effective was milling for 30 min in the planetary mill, which comminuted 90% of ferrochromium to a particle size of less that 200. 2. The optimum conditions for the production of TiC-Kh12M-steel materials (50, 40, 35, and 30% TiC) with chromium added to the steel in the form of ferrochromium powder were found to be a pressing pressure of 3 tons/cm2, a vacuum sintering temperature of 1430-1470C, and a sintering time of 1 h. The optimum conditions for the heat treatment (annealing, quenching, and tempering) of these materials were determined. 3. Some of the key properties of the materials were investigated. It was established that the properties of TiC -Kh12M-steel materials alloyed with chromium in the form of ferrochromium are virtually identical with those of the same materials containing additions of pure chromium powder. Ferrochromium, however, being cheaper and more readily available than chromium powder, should be used as a starting material in the manufacture of titanium-carbide-steel alloys.
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∙ 14y ago
Wiki User
∙ 14y agochromium increases corrosion resistant property of steel
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What is the main component of stainless steel?
In addition to iron, carbon, and chromium, modern stainless steel may also contain other elements, such as nickel, niobium, molybdenum, and titanium. Nickel, molybdenum, niobium, and chromium enhance the corrosion resistance of stainless steel. It is the addition of a minimum of to the steel 12% chromium that makes it resist rust, or stain 'less' than other types of steel. The chromium in the steel combines with oxygen in the atmosphere to form a thin, invisible layer of chrome-containing oxide, called the passive film.
How is chromium important to ordinary steel?
chromium added to regular steal form stainless steel.
Why high carbon high chromium steel cannot be weld?
high carbon high chromium steel to Welding
What are two uses for a steel alloyed with chromium?
stainless steel
What are the 4 main elements in stainless steel?
The elements that make up stainless steel are nickel, iron,chromium and manganese.
Which of the two metals are mixed in manufacturing of stainless steel?
steel and chromium
It takes 11 times as much selenium to add to a certain batch of steel as it does Chromium If there are 108 pounds of selenium and Chromium together in a batch of this steel how many pounds of Seleni?
98.1828 pounds of addition should be selenium.
Why is stainless steel more resistant to a chemical charge then regular steel?
The addition of small amounts of certain elements to the alloy, in particular the metal chromium.
What is the main component of stainless steel?
In addition to iron, carbon, and chromium, modern stainless steel may also contain other elements, such as nickel, niobium, molybdenum, and titanium. Nickel, molybdenum, niobium, and chromium enhance the corrosion resistance of stainless steel. It is the addition of a minimum of to the steel 12% chromium that makes it resist rust, or stain 'less' than other types of steel. The chromium in the steel combines with oxygen in the atmosphere to form a thin, invisible layer of chrome-containing oxide, called the passive film.
How is chromium important to ordinary steel?
chromium added to regular steal form stainless steel.
What element can convert steel into stainless steel?
chromium
Chromium is used for.?
Chromium is a rare element. There are many uses for it. We can use it for make stainless steel.
Why high carbon high chromium steel cannot be weld?
high carbon high chromium steel to Welding
What does chromium look like at room temperature?
The appearance of chromium is as a steel.
What metal is added to stop stainless steel rusting?
The most rust resistant stainless steels contain nickel and chromium in addition to iron.
How does steel become stainless steel?
Oversimplifying it significantly, surface alloying with chromium. Some grades only have the chromium in the surface, other grades the chromium is throughout the material.
Why is stainless steel dangerous to weld?
stainless steel contains chromium. chromium gives off toxic fumes when heated.
