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Anonymous users2024-02-08The carbon content of 45 steel is, the ferrite carbon content, the pearlite carbon content, in the equilibrium state, the structure of 45 steel is composed of ferrite and pearlite, and an equation can be used to calculate the ferrite pearlite content.
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Anonymous users2024-02-07According to the phase diagram, the leverage theorem.
First eutectic ferrite.
727 that line.
a-fe%=(Pearlite.)
Ferritic: (cementite.)
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Anonymous users2024-02-06According to the phase diagram, the leverage theorem.
1. Calculation of tissue composition: It is to calculate ferrite f and pearlite pw(f)=(
w(p)=(
2. Calculation of phase composition: it is to calculate ferrite f (body-centered cubic lattice!!). ) and cementite Fe3C (octahedral lattice!!) ）
w(f)=（
w(fe3c)=（
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Anonymous users2024-02-05If you are counting ferrite and pearlite.
w(p)=(
w(f)=(
If it is to calculate ferrite and cementite.
w(fe3c)=(
w(f)=(
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Anonymous users2024-02-04At room temperature if ferrite and pearlite are calculated.
w(p)=(
w(f)=(
If it is to calculate ferrite and cementite.
w(fe3c)=(
w(f)=(
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Anonymous users2024-02-03According to the law of bar-ridge without rod, when the eutectic transition, the ferrite old field is split.
Carbon content (austenite.
Carbon content (carbon content of cementite
Ferrite content: (
Cementite content:
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Anonymous users2024-02-0260 steel assumes that its carbon content is just right.
Since the structure at room temperature must be a mixture of ferrite and cementite, the carbon content of cementite is, and the carbon content of ferric is frank at medium temperature, so the ratio of ferrite and cementite can be obtained by the equation, and the percentage of ferrite in the room temperature structure is x, and this equation can be solved.
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Anonymous users2024-02-01The room temperature bending structure of mild steel is pearlite, and the ferrite is rotten and sleepy. （）
a.That's right. b.Mistake.
Correct Answer: Hunger A
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Anonymous users2024-01-311. Simple algorithm: Since the carbon content of pearlite is, and the carbon content of ferrite is very low, the maximum is only and can be ignored, so the simple algorithm is: , and the ferrite content is.
That is, the pearlite accounts for about about the carbon content and the ferrite accounts for about the carbon.
2. Accurate algorithm according to the law of leverage:
Pearlite volume: wp=(
Ferrite mass: wf = (
That is, the proportion of pearlite and ferrite in the carbon content of steel.
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Anonymous users2024-01-30According to the law of leverage, the ferrite number is blind at the time of eutectic transition.
Carbon content (Austenite.
Carbon content (carbon content of cementite (
Ferrite content: (
Cementite content:
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Anonymous users2024-01-29Ferrite is the basic characteristic of pure iron, which can be understood as the ferrite part is pure iron, and the middle of the aerial shot can be rented to solidify a little of its disadvantages and other elements, which is softer.
Cementite is carbide and is very hard.
Pearlite is a tissue that combines ferrite and pearlite in a lamellar structure with moderate hardness.
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Anonymous users2024-01-28According to. The law of the old rod.
When eutectic transitions, ferrite.
Carbon content (early austellite conjunctive.
Carbon content (carbon content of cementite
Ferrite content: (
Cementite content:
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