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2 years ago

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The mass fraction of eutectoid cementite in a hypoeutectoid iron-carbon alloy (just below its eutectoid temperature) is 0.109. O

n the basis of this information, determine the composition of the alloy. If it is not possible to determine the composition from the information provided, enter 0.

1 answer:

Zinaida [17]2 years ago

3 0

Answer:

The composition of an alloy is 0.75%wt

Explanation:

Let alloy is a hypoeutectoid alloy.

So, we can apply lever rule which is shown below.

$W_{a}=$ $\frac{C_{0} -C_{a} }{C_{b}-C_{a} }$

We know that $C_{a}=0.022$ and $C_{b}=6.7$

Given that $W_{a}=0.109$ , we have to find $C_{0}$

Thus,

$0.109=\frac{C_{0}-0.022 }{6.7-0.022}$

Hence

$C_{0}=0.75$ %wt

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Answer:

percentage change in volume = 0.00285 %

Explanation:

given data

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put here value and we get

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solve it we get

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and

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3 years ago

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Answer:

The expression is shown in the explanation below:

Explanation:

Thinking process:

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Previous concepts

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