0
actually there is no difference in beta phase and alpha phase when we talk about crystal structure of iron.
beta phase has the same structure as the alpha phase. the olny difference is the magnetic properties which are absent in beta phase due to the expanded lattice parameter.
Add your answer:
Earn +20 pts
What is Mic-rostructure of iron-iron carbide phase diagram?
the iron iron carbide phase diagram does not have a single microstructure, it has different microstructures depending on the carbon content of the steel.
The main difference between cast-iron and steel?
Steel is an alloy of carbon and iron. If the percentage of carbon is more than 2% then it is called cast iron.
What are the limitation of iron iron-carbide diagram?
1) The nonequilibrium martensite does not appear on the diagram; and 2) The diagram provides no indication as to the time-temperature relationships for the formation of pearlite, bainite, and spheroidite, all of which are composed of the equilibrium ferrite and cementite phases.
What is the effect carbon content on steel?
Carbon is primary hardening element in steel. Hardness and tensile strength increases as carbon content increases upto 0.85%. Ductility and weldability decreases as carbon content increases. If the solution of carbon and liquid iron is solidified slowly the carbon tends to separate out in the form of graphite flakes (Grey cast iron). It is easily machinable. If the same iron is cast and colled quickly, it is hard and has a higher tensile strength, is difficult to machine (white cast iron).
What is the carbon concentration of an iron-carbon alloy for which the fraction of total ferrite is 0.94?
The carbon concentration of an iron-carbon alloy for which the fraction of total ferrite is 0.94 is 0.06. Since the fraction of ferrite in the alloy is 94/100, the fraction of carbon must be 6/100 to make a total of 100/100.
What is Mic-rostructure of iron-iron carbide phase diagram?
the iron iron carbide phase diagram does not have a single microstructure, it has different microstructures depending on the carbon content of the steel.
Which is more soft phase ferrite or austenite in iron carbon diagram?
Pretty sure it is ferrite
Purpose of the iron-carbon phase diagram?
to know what will be the crystal structure and physiacal and chemical properties of iron at known carbon percentage and temperature. provided that slow and uniform cooling rate is there and no quenching.
WHAT IS iron carbon system?
Iron with differrent carbon percentage in it would have different strength and ductile properties at different temperatures.As the percentage of carbon increases its ductility decreases and strenght increases and brittleness increases.This is put in a diagram that explains the condition of iron with different carbon percentage.This is iron carbon system.
What temperature mild steel melts?
The low carbon concentrations (0.05-0.15%) in mild steel do not have a major effect on the melting point of iron, which is 1538 centigrade. Looking at the Iron-Carbon phase diagram show that the reduction from this melting temperature will be only a few degrees. At higher concentrations of carbon (2-4%), as in cast iron, the melting temperature is substantially reduced. The alloy starts melting at 1154 centigrade, and is completely molten by 1200-1400 centigrade depending on carbon content.
Why can I not get pure iron metal?
SigmaAldrich sells pure iron in many different forms. Given that, the alloy of carbon and iron that we call steel is far more common for two reasons: iron picks up carbon during smelting (the second phase of iron production is to burn off the excess carbon) and steel is a far more useful metal than iron.
What are the critical temperatures of iron -carbon equilibrium diagram?
At the time I'm writing this answer, I'm astudent of BSc Metallurgical & Materials Engineering and I've had a brief study of Iron-Carbon diagram recently. I hope my answer helps. The Lower Critical Temperature is 1333o F. The Upper Critical Temperature is 2066o F.
Does iron have much carbon in it?
Iron typically contains small amounts of carbon, with most commercial iron containing less than 0.03% carbon. The amount of carbon present can affect the properties of the iron, with higher carbon content resulting in harder, more brittle iron.
What does Iron oxide carbon make?
Iron oxide carbon makes iron and carbon dioxide through a chemical reaction known as reduction. Iron oxide, or rust, reacts with carbon to produce iron metal and carbon dioxide gas. This process is commonly used in the production of iron and steel.
What phase is potassium iron?
Potassium iron is typically in the solid phase, as it forms a compound like potassium ferrate (K2FeO4) or iron potassium oxides (KFeO2).
What is the word equation for the extraction of iron from the ore iron oxide?
Iron oxide + carbon monoxide -> iron + carbon dioxide
What substance in the iron extraction process reduces iron oxide to iron?
Carbon, typically in the form of coke or coal, is used to reduce iron oxide (Fe2O3) to iron in the extraction process. The carbon reacts with the oxygen in the iron oxide to form carbon dioxide gas and elemental iron.
