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An iron-carbon binary alloy has 0.5% C by weight. What is this alloy called?
- a)Eutectoid alloy
- b)Eutectic alloy
- c)Hypo-eutectoid alloy
- d)Hypereutectoid alloy
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
An iron-carbon binary alloy has 0.5% C by weight. What is this alloy c...
Eutectoid alloy is formed at 0.8% CIf below 0.8% it is Hypo-eutectoid if above than Hyper eutectoid alloy
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An iron-carbon binary alloy has 0.5% C by weight. What is this alloy c...
**Explanation:**
The iron-carbon binary alloy with 0.5% C by weight is called a **hypo-eutectoid alloy**.
**Definition of Eutectoid Alloy:**
An eutectoid alloy is a type of alloy that has a eutectoid composition, which is the exact composition that undergoes a eutectoid reaction. In the case of iron-carbon alloys, the eutectoid composition occurs at approximately 0.76% carbon by weight.
**Explanation:**
In the given question, the carbon content of the alloy is 0.5% by weight.
To determine the type of alloy, we need to compare the carbon content with the eutectoid composition of 0.76%.
If the carbon content is less than the eutectoid composition (0.76%), the alloy is called a **hypo-eutectoid alloy**.
If the carbon content is equal to the eutectoid composition (0.76%), the alloy is called a **eutectoid alloy**.
If the carbon content is greater than the eutectoid composition (0.76%), the alloy is called a **hypereutectoid alloy**.
Since the carbon content in the given alloy is 0.5%, which is less than the eutectoid composition of 0.76%, it falls under the category of **hypo-eutectoid alloy**.
Therefore, the correct answer is option **c) Hypo-eutectoid alloy**.
The iron-carbon binary alloy with 0.5% C by weight is called a **hypo-eutectoid alloy**.
**Definition of Eutectoid Alloy:**
An eutectoid alloy is a type of alloy that has a eutectoid composition, which is the exact composition that undergoes a eutectoid reaction. In the case of iron-carbon alloys, the eutectoid composition occurs at approximately 0.76% carbon by weight.
**Explanation:**
In the given question, the carbon content of the alloy is 0.5% by weight.
To determine the type of alloy, we need to compare the carbon content with the eutectoid composition of 0.76%.
If the carbon content is less than the eutectoid composition (0.76%), the alloy is called a **hypo-eutectoid alloy**.
If the carbon content is equal to the eutectoid composition (0.76%), the alloy is called a **eutectoid alloy**.
If the carbon content is greater than the eutectoid composition (0.76%), the alloy is called a **hypereutectoid alloy**.
Since the carbon content in the given alloy is 0.5%, which is less than the eutectoid composition of 0.76%, it falls under the category of **hypo-eutectoid alloy**.
Therefore, the correct answer is option **c) Hypo-eutectoid alloy**.
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